Led Electronic Display Repair Guide

Judge issues must be handled after hsien Chu, clear, severe, small problems. Short circuit LED fluorescent lighting should be the highest priority.
1, resistance detection method, adjust the multimeter to resistance, detect a normal circuit board of a point of resistance, then testing another piece of the same circuit board with a points test and normal resistance values are different, different if you determine the scope of the problem.

2 voltage detector, multimeter voltage regulation, detecting suspect circuit voltage of a point, are similar to the normal, or determine the scope of the problem.

3, short circuit LED Flood Light Supplier detection, adjust the multimeter to the short block (some diodes voltage drop or resistance stalls, usually with alarm function), checks for short circuits happen, after finding the short circuit should give priority to, so that it does not burn out other devices. The method you must do so in the case of power off circuit, preventing damage to the table.

Detection method 4, pressure drop, adjust the multimeter to diode voltage drop test document, because all of the IC is made of numerous basic components, but small, so when it comes on a PIN when there is current through, there is a flexible led strip lighting voltage drop on the PIN. General of the same model similar to the pressure drop on the same IC pins, based on pressure drop in PIN value comparison, operation must be power off circuit. The method has some limitations, such as the detected devices are high impedance, not detected. Four processing steps, panels-frequently asked questions Board failure:

A. Panel is not lit

1, check the power supply and the power supply is connected.

2, check whether the test card to identify interfaces, test card red light flashing is not recognized, check whether the lamp power with test cards, or the lamp panel connector interface signal and the short-circuit caused no recognition. (Smart test card)

3, detect 74HC245 deficiency-free welding short circuit, on 245 (EN) signal input or output pin is a virtual welding short circuit to the other lines. Note: the main power and enable (EN) signal.

B. helical scan, regularity of interlacing is not lit display overlapping

A, b, c, d, 1, check whether the signal input to the 245 disconnection or Xu Han and short circuit.

2, testing corresponds to 245 outputs a, b, c, d or Xu Han, short circuit between 138 and circuit breakers.

Detection of 3, a, b, c, d between the signal short circuit or a signal and the short-circuit. Note: the main test ABCD signaling.

C. iseedeadpeople with line or lines are not lit

138 per cent between 1, detection or virtual welding line circuit breakers, short circuit.

D. scan, two or more rows (typically are multiples of 2, law) at the light

1, a, b, c, d, the signal is detected between the short circuit.

2, detect whether 4,953 output and output short circuit.

E. iseedeadpeople with single-point or multi-point (irregular) is not lit

1, find the module corresponds to the measurement and control foot line short circuit.

2, replace the module, or a single lamp.

F. iseedeadpeople has one or more columns is not lit

1, found on the module controlling the PIN, measure and driver IC (74HC595/TB62726) output port connection.

G. single point or highlight a single column, or entire row highlighted, and is not subject to control

1, check whether the column is short circuit and power supply.

2, test the line with power-cathode short-circuit.

3, replace the drive IC.

H. display confusion, but the output signal of a Board under the normal

245 corresponds STB latched outputs 1, detection and driver IC latch-side connections or signal short circuit to the other lines.

I. display confusion does not output correctly

1, detection of clock signal CLK latch STB is shorted.

2, measuring 245 clock CLK input/output.

3, tests whether the clock signal short circuit to the other lines.

Note: the main clock and latch signal is detected.

J. display the missing colors

245 1, detection of the color data of the port has input and output.

2, test whether the data of the color signal short circuit to the other lines.

3, test the color of cascade data between the driving IC is short circuit, virtual circuit breakers or welding. Note: the available voltage detection method is easier to find the problem, test voltage is different from normal data, determine the fault zone.

K. output problem

1, test the output interface to the signal output of the IC line connection or short circuit.

2, the output latch of the clock signal is detected correctly.

3, testing the last drive IC between concatenated output data and the output interface data port connection or short circuit.

4, the output signal is a short circuit or a short circuit to ground.

5, check the output of the cable is good.

CrashPlan vs Backblaze Focused on Easy Backups

Searching for an online storage service that puts emphasis on the backup itself? Then CrashPlan vs BackBlaze should be on your list of potential providers. Before you blindly choose one of these companies however, you need to examine what each service brings to the table.

This overview will help you compare the major features of each service. You can quickly evaluate the similarities and the differences. Having a good idea of what you will be getting is one way to make the selection process faster. Then, you can always take a closer look at each service and make your final decision.

Features

It is important to keep in mind that each of these services focuses on actual backups. If you are looking for file sharing and file syncing, you will have to look elsewhere. These two companies provide reliable backup service for your data. They do not offer features that are conducive to online collaborations between people. These providers backup data, period. They both offer remote access, file versioning, automatic backups, and scheduled backups. Both are compatible with Windows and Mac. However, CrashPlan offers archiving and file searching, as well as compatibility with Linux and Solaris.

In the area of customer support, CrashPlan vs BackBlaze are neck and neck they only offer email support. People that enjoy a variety of ways to contact customer service will not find that with either of these services. However, if email support is enough for you, then both of these providers fit the bill. While customer service is important, continue examining features before you rule out either of these online backup services.

Storage and Pricing

Both of these companies offer unlimited storage space. BackBlaze has two simple plans one for the average consumer and one for businesses. Both plans provide the unlimited storage space, so you never have to worry about running out of space. This service also takes the guesswork out of which files to back up it backs up all the files on your computer. While you do not get to pick and choose, this particular feature is useful to those that do not want to be bothered with selecting files to back up. On the other hand, if you do not want your entire system backed up, you may want a different service.

CrashPlan has several subscription plans. Their free plan does not offer online backups it only allows users to back up to another physical source. For example, you can hook up your external hard drive and backup your files, but you cannot backup your files to the cloud.

Target User

The targeted user of these services is the average home user. However, one focuses more on the user that favors simplicity, while the other focuses on the user that wants selections and options. Both services focus only on backing up your system, so if you need to share files, these will not work for you. However, if you only want a backup of your data, both providers can handle this function.

When comparing CrashPlan vs BackBlaze, decide if you are the simple user or the selective user and choose the service that fits your needs and budget.

Backblaze vs Crashplan – which is better for your storage needs? Visit us to see the full side-by-side comparison of these two services as well as detailed reviews of each service. We also provide reviews and recommendations of the best online backup services available today.

Selecting an Assessment Tool – 5 Business Principles Vital to Your Success

Executive Summary

The goal within most
organizations is to hire a happy, productive workforce that stays on the
job longer and produces more. That simple mission is often very hard to
execute without an HR tool that is proven to predict a candidate’s
on-the-job performance and tenure. Volumes of research show that an
assessment technology-when positioned and deployed correctly-will reduce
turnover and improve productivity while creating a reservoir of
objective performance data designed to identify prospective employees
who are good fits in specific job roles.

To fulfill the mission of
hiring a productive workforce that stays on the job longer and produces
more, assessment technology has become a mission critical component for
organizations. With the right assessment technology, your company
should have the means to identify, develop, and retain a highly
productive workforce, which is one of the vital ingredients to business
success.

I want to share with you lessons I’ve learned over the
last decade on how to most effectively select, deploy, and study the
effectiveness of an assessment technology solution. Equipped with these
five principles, you possess the fundamental components that must be
top-of-mind when purchasing an assessment technology solution.

The Principles

Principle #1: An assessment technology should be…

Proven to predict employee performance.

Assessment
technologies are designed to assist organizations in identifying
candidates who will be successful on the job. To determine which
assessment can best meet your organization’s needs, you must be
convinced of the system’s ability to predict performance. From an
objective, scientific perspective, performance predictability of an
assessment solution is most often documented through two concepts:
reliability and validity.

Reliability-Only Part of the Equation

I
met a good friend of mine at a golf course in West Texas many years
ago. Our plan was to enjoy a round or two and catch up on old times.
However, due to a high volume of golfers waiting in line, the course
officials paired us up with two “local boys” (that’s a Texanism for two
grown men you don’t know).

I was the last to tee off after
watching my friend and the two local boys really set the pace by
crushing their drives. Embarrassingly, I “topped” the ball, meaning I
barely caught enough of the ball to send it gently skipping down the
middle of the fairway about fifty yards from the tee box.

As golf
etiquette would have it, the player furthest from the hole must hit the
next stroke. As I took a couple of practice swings, I noticed the two
local boys waiting in front and just to the right of my position on the
fairway.

In a neighborly fashion, I called out, “Hey, you boys
might want to move. I have a nasty slice.” (My ball always curls off to
the right.) One of the two nonchalantly called back, “Aw, don’t worry,
you won’t hit us!” Not wanting to disrupt the flow of the game, I warily
continued to line up my shot. I tightened my grip on the club, took one
more practice swing, and then let it rip.

It really was a
beautiful shot-featuring my standard beautiful slice in all its glory.
The ball curved so fast I did not have time to yell “fore.” Before I
knew it, the ball whistled straight at the local boys and struck one
with a loud thud! (I suppose he was fortunate-the ball struck that
padded area between the hamstrings and the lower back.) The golfer with
the smarting backside shrieked so loudly that everyone on the course
felt his pain.

The ever-present slice in my golf swing provides
the perfect illustration of the concept of reliability in an assessment
technology.

In golf, I reliably slice the ball to the right side
of the course every time; you can count on it, and, unfortunately, the
local boys did not heed the warning. To relate this to assessment terms,
anytime you assess someone, you want to receive a reliable result. The
reliability of an assessment focuses on the consistency of the
responses, but not the accuracy. In practical terms, an assessment that
asks several similar questions-using slightly different words-would
yield similar answers. Put another way, if a person took an assessment,
then took it again later, the results should be very similar. By
contrast, if you receive a wide variety of responses, you would likely
determine that the measure is not reliable.

The statistical
reliability of an assessment is measured in several different ways. It
would take a lengthy white paper to cover this topic to my satisfaction,
but, in simple terms, a rule of thumb for a behavioral assessment
instrument is to achieve reliability of.7 to.8. This range will vary due
to the type of assessment that was used. I would encourage you to not
only ask about the reliability of any assessment technology, but also
the background data that defines how that number was generated.

It
is important to remember that reliability is only part of the equation.
Without validity, you will not have a full picture of the assessment’s
effectiveness. For example, to better understand the actual success of
my golf game (or lack thereof), we need to analyze my validity to
determine how accurately I can hit the ball in the hole. (At least I am
reliable…one out of two isn’t bad.)

Validity-Does the Assessment Work?

Validity
answers a very different question. Does it work? In the game of golf,
the number of strokes to complete a round of golf provides a validity
estimate of a player’s golfing abilities. It is important to understand
that one round of golf at one golf course does not provide an accurate
representation of one’s golfing ability. Golfers attain different scores
depending on the course played, weather, type of course, difficulty of
the course, the number of holes played, the number of strokes required
to make par, etc. It is not one round, but the body of evidence
collected over time that provides the validity of a player’s golf game.

This
concept translates nicely to assessment validity. When evaluating the
validity of an assessment technology, you should focus your evaluation
efforts on the volume of studies, types of roles, and the sample sizes
of the various studies. Generally, assessments should deliver a validity
coefficient in the neighborhood of.2 to.4. Like reliability, but even
more so, the range of the validity coefficient may vary due to the
context of the study, sample sizes, length of study, etc. Dig into the
reported validity coefficient as well as the supporting documentation
that details the study process.

Collectively, discussions around
reliability and validity should provide you with the confidence you need
to narrow the choices of possible assessment technologies for your
organization.

Principle #2: An assessment technology should be…

The catalyst to continuous workforce improvement.

To
stay competitive, every company should desire to see continuous
improvement in the workforce. The advantages that an organization gains
through the pursuit of continuous improvement are numerous: more
productive workers, better process efficiencies, lower overall expenses,
and higher revenues, to name a few. The key to that kind of
long-lasting improvement lies in bettering the performance of every
member of the organization. After all, individuals make up teams, teams
make up departments, departments comprise company divisions, and
divisions form corporations. Individual performers are the building
blocks of the entire structure.

Often the key role that individual performers play in creating a culture of continuous improvement is overlooked.

Traditionally,
companies are very good at monitoring and tracking performance of the
masses at the company, regional, and group levels. However, those same
organizations often miss the mark when it comes to tracking and
monitoring performance at the individual level. Without solid tracking
of individual job performance, companies are unable to evaluate
performance on the front lines where it actually occurs: at the
individual level.

As part of your evaluation of assessment
technologies, look for processes that rely heavily, if not solely, on
objective performance metrics to document the effectiveness of
individuals in the workforce. Individual performance numbers will not
only define “success” in your company and culture, but also serve to
link behaviors to performance when a behavioral assessment tool is
introduced into the hiring procedure.

This is how your assessment
technology can become the catalyst for continuous workforce improvement.
If positioned properly, the assessment software will be a crucial
collection point of individual behaviors-and related performance
metrics-that dictate what great performers look like in specific jobs.

To
derive the best results from an assessment technology, it is important
to understand performance in terms of data at the individual level.
Understanding individual performance will provide you with a clear
performance picture surrounding the objectives and desired outcomes for a
position. The clearer the performance picture, the more equipped you
are to accurately capture the behaviors and skills needed for success.

By
installing an assessment technology, your organization’s maintenance
will include reevaluating the clarity of performance data on a continual
basis in order to improve the behavioral/skill capture. In this
process, it is commonplace for companies to focus on higher quality
individual performance metrics to better leverage their assessment
technology. This effect will automatically raise the bar in terms of
selection, training, development, and employee productivity across any
position where an assessment technology is deployed.

In summary,
focusing on detailed, objective performance data collection methods will
inevitably lead to a better capture of behaviors and skills. A better
data capture through an assessment technology leads to the accumulation
of workers who are more aligned with desired business performance goals.
Eventually, one component improves the other, fueling an ongoing cycle
of continuous improvement.]

Principle #3: An assessment technology should be…

Focused on fit; more is not always best.

Have
you heard the saying, “More is better”? In the game of golf, you have a
variety of golf clubs designed for different situations. Some clubs are
for driving the ball great distances down the fairway, while other
clubs are used for shorter shots such as chipping or putting. Imagine
how your golf game would suffer if you believed that the bigger club was
always better. On a par three hole, you may overshoot the green with
one swing. Even worse, once you make it to the green, you will struggle
putting the ball in the hole using your driver. At that point, the
bigger club actually hurts your ability to maneuver the ball where you
want it to go, which is in the hole. By that logic, more is not always
better.

The same concept applies when it comes to using an
assessment. Typically, assessments measure a collection of
characteristics (referred to as factors, dimensions, etc.). Many people
assume-incorrectly- that it is always better to be on the higher side of
a characteristic (the More is Better Syndrome).

Let’s consider
the implications of this thought process. Is being smarter always
better? What about filling a mundane job vacancy? How long would a
brilliant person stay in a non-thinking, repetitive job? Is being highly
sociable a great characteristic for every job? Consider an isolated
role where interaction with others is detrimental to good performance.
Would a person who thrives on socializing enjoy, or be driven to
success, in this type of role?

Of course, I’m exaggerating these
scenarios to drive home the point: it is important to avoid the mistake
of assuming more is always better. The key to fully utilizing the power
of the assessment is to find just the right amount of many
characteristics to predict future success in a specific role.

By
fine-tuning the subtle shades of each assessment characteristic to best
describe your strongest performers, you will be better equipped to
maximize the predictive power of your assessment tool. Again, great
caution should be taken if your objective is to only use assessment
characteristics in the context of “more is better.” That method of
evaluation often leads to selection tactics based on incorrect
assumptions. Additionally, you will effectively dismiss a large amount
of hidden insight that will increase your predictive power to identify
your future top performers who will stay in position longer.

Keep
in mind that most assessment technologies are built according to the
assumption that more is better. Your evaluation of assessment
technologies should only include systems that measure a large group of
behavioral characteristics; moreover, the system must offer flexibility
in specifying the optimal amount of each characteristic an ideal
candidate would possess to succeed in the target job.

Principle #4: An assessment technology should be…

More than just a score.

When
selecting an assessment technology, it is important that the usefulness
of the assessment goes far beyond a simple score or rating of the
candidate. Overall scores are helpful when sorting and sifting
candidates and narrowing the field, but the real value comes when you
dig deeper and fully leverage all the rich information gathered from the
assessment. Specifically, you should be able to apply the assessment
information to areas such as enhancing the interview, on-boarding,
determining future career paths, and developing employees over the long
term.

Enhanced Interviews

Beyond providing a
score, information gained from the assessment should improve your
interview process. A quality assessment can effectively produce targeted
interview questions designed to facilitate discussion around the
specifics of a position. These targeted interview questions also provide
a means to ensure consistency in your interviewing process regardless
of the size or geography of your organization. Additionally, by using
the targeted interview questions, you will maximize your time with the
candidate. At a minimum, you will have a better understanding of the
strengths and opportunities revealed by the assessment in relation to a
specific position.

On-Boarding

On-boarding
is the process of getting a new hire officially authorized for his or
her first day on the job. This hiring phase includes the completion of
various governmental and proprietary forms, plus any other paperwork
required by the hiring company. To expedite this procedure, an
assessment technology will typically be integrated with the company’s
Human Resource Information System (HRIS) to pass on all relevant data
previously collected on the candidate. In essence, the assessment
platform should “fill in the blanks” required on electronic forms in the
HRIS database through a transfer of information from the candidate’s
original application. Without this integration (more on integrations in
the next section), on-boarding remains a manual process and any
potential efficiencies that could be driven from the assessment
technology are negated. Direct your evaluation of assessment
technologies to only those systems with proven integration success with
common HRIS technologies.

Career Pathing

Future career
paths are another area where an assessment technology should allow you
to go beyond a score. In companies with an eye to the future, the
selection strategy is to hire not only for the immediate need, but also
determine each employee’s viability for future positions. For example,
if you are tasked with hiring an assistant manager, you may also be
interested in a candidate’s potential to be a manager at some point down
the road. Your assessment technology should provide you with the
insight to understand and evaluate the potential for candidates to move
into other positions, and not just the job for which they applied.

Employee Coaching and Development

Companies
are often asked to do more work with fewer people on the payroll.
Therefore, coaching and employee development programs have become an
area of emphasis in most organizations. Consider future coaching tools
as an integral part of the assessment technology purchase. The
assessment process captures a wealth of data, which should be used
throughout the life cycle of an employee. By scientifically examining
the relationships between performance data and assessment characteristic
scores, the assessment technology provides specific, detailed
developmental targets to support continued growth of the assessed
individual.

One of the biggest hindrances to creating a quality
coaching and development program is finding specific content
statistically related to performance on the job. Assessment technology
provides the perfect vehicle to supply accurate, job-related content for
training in the current position, as well as in future positions.

Principle #5: An assessment technology should be…

A tool that makes your organization better.

Although
this principle serves as number five, it fits the old adage, “Last but
not least.” Central to any new purchase or program decision is the need
to determine how your organization will ultimately define value. A great
approach to this question is to ask, “How will this assessment
technology make us better?” You will find that value comes in many
forms; each organization has a unique focus that is proven to breed
success. Three universal ways in which an assessment technology can
better an organization are:

  • Better processes.
  • Better retention.
  • Better performance.

Better Process

The primary function of an
assessment technology is to address the fundamental challenge of
identifying candidates who produce more and stay longer on the job. In
fulfilling that primary function, your assessment technology should not
hinder your overall HR process, but in fact should streamline the hiring
workflow. This is most often accomplished through integrations with
existing software systems designed to manage the flow of information as
candidates move from their initial applications to their first day on
the job.

The advent of applicant tracking software (ATS) allowed
companies to manage the data generated during the hiring process. ATS
tools-not to be confused with assessment technology-were designed only
to collect, organize, and move candidates through the HR process. In
other words, they simply manage bits of information. Some applicant
tracking tools provide a few features such as pre-screens or light
assessment functionality, but the central focus is on organizing
information. These features are handy, but secondary, to the primary
objective of hiring the right fit for the job.

To enjoy the
functionality of assessment technology and an ATS, one business option
is to select an assessment technology that can co-exist side by side
with an ATS. However, this arrangement isn’t a requirement. Quality
assessment technology now provides features to categorize and sort
people, collect resumes, store applications, provide detailed reports,
and do many other practical tasks to manage your peopleflow-the path
every candidate takes from the “Apply Now” portal to the final hire/no
hire decision. The focus must always be on selecting the right candidate
for the job, but be aware that an assessment technology may build in
enough information management features to ensure that your hiring
process is smooth, user friendly, and meets your peopleflow needs.

Assessment + ATS = Integration

If
your organization has determined to use, or is currently using, an
applicant tracking software, then you want to make sure that the
assessment technology has the ability to integrate with that specific
ATS. Integration is defined as the process of connecting two or more
technology solutions together to create a seamless flow of information
from one system to another. The seamless flow should be present for both
the applicant and the end-user. The objective of an integration is to
simplify and streamline the data collection and delivery process.

Integrations
are common in the marketplace today. Many systems such as tax credit,
background checks, performance management, applicant tracking, and
payroll or human resource information systems (HRIS) are connected
through a seamless integration. You should expect an assessment
technology to provide you with a history of integrations and examples of
current clients already using the assessment technology integrated with
another ATS or HRIS.

Better Retention

A
business objective that is directly addressed by an effective assessment
technology solution is improving employee retention. Excessive employee
turnover effects all organizations in the form of both direct and
indirect costs. Direct costs include the placement of job postings, plus
the labor hours devoted to screening and interviewing candidates. There
are many indirect costs to consider as well. A few examples are down
time in the vacant position, lost opportunities, overtime expenses for
others to cover job vacancies, not to mention the potential negative
effect on company morale.

Regardless of your current retention
issues, the stakes are high and worthy of careful consideration. Cash
America, an international financial services company that studied its
hire-termination trends over a two-year period, conservatively
calculated the direct and indirect costs for replacing a store manager
at $10,000 each, and around $2,500 for each customer service
representative. Whether your numbers are higher or lower, it’s readily
apparent that for a company with thousands of employees, significant
reductions in employee turnover equates to millions of dollars saved
over time.

A common thread among much of the existing employment
research is the fact that candidates who are good behavioral fits to
their particular jobs tend to stay longer and turnover less frequently.
It is important to recognize that employee retention is a strong
indicator of an improvement effect from an assessment technology. Most
companies keep detailed records of terminations for payroll purposes,
which makes good business sense. No company would willingly continue to
pay an individual who is no longer employed. These records may provide
important data for a quality hire-termination study. For example, as
part of the aforementioned Cash America study consisting of data on
3,248 employees, the hire-termination data documented that the company
experienced a 43% turnover reduction in managerial positions after
implementing an assessment technology.

Keep in mind that obtaining study-worthy results for all positions in the organization simply may not be possible.

Expectations
for turnover studies should be appropriate to the scope of the
position. Roles with small populations, lack of accurate hire and
termination data, or an insufficient amount of time for data collection
can affect your ability to conduct a quality study.

Better Performance

I
have never met an executive who did not measure success in terms of
performance. Companies may evaluate performance in many different ways,
but one business rule is undeniable-improved performance comes from
improving your incumbents and selecting better people. Because so many
companies desire to improve their workforce, assessments are a great way
to drive improvement. An assessment technology modeled after actual
performance data provides a strong tool to select those who have the
greatest potential to perform well in the role.

When evaluating an
assessment technology, a very common question is often posed by company
executives, included in requests for proposals (RFPs), and/or submitted
by committees: “What is your validity coefficient?” By latching on to
this statistical term, the organization is really asking, “Does it
work?” Or, “Can you prove it has made other companies better in target
positions?” Let’s take a moment to dissect the meaning of this question.

As
we touched on in Principle #1, it is important to interpret any answer
to the validity question in the context of the particular situation.
Remember my golf game. If you ask me what I shoot, like any
self-respecting person I am going to tell you my best score. You might
think I am a decent golfer based on that one score. What I conveniently
neglected to tell you was the situation surrounding that score. I left
out the part about all the holes being par threes with no water, sand
traps, or trees to get in the way. On an average competitive golf
course, my performance would be much worse.

Interpreting validity
is more than just asking, “What is your validity coefficient?” You
should dig into the specifics of the situation. Pay attention to
specific items such as sample sizes, types of data being studied, types
of positions, or any other particular items of interest. Some studies
may not, at face value, seem impressive until you understand the
situation and the results based on the situation.

For example, by
deploying an assessment technology, a large call center enterprise hoped
to identify job candidates who could reduce the average time spent on
incoming phone calls. After studying the performance of 704 employees
over their first 12 months on the job, employees hired using the
assessment process averaged call times that were 1.14% shorter than
calls taken by their non-assessed coworkers. That translates to a
savings of approximately four seconds per call, or about the time it
took you to read this sentence.

At first glance, are you impressed
with a 1.14% improvement? Before you answer, consider this: across the
entire corporation consisting of multiple call centers, each second
shaved from the average call time is valued at $175,000 over the course
of a year. That four-second improvement saves over $700,000 per year
company-wide, and the assessment technology has paid for itself many
times over.

While there are plenty of success stories, be aware
that the reverse can occur. A study may appear very impressive at first
glance, but when the situation is exposed to the light, the results may
be found lacking due to tiny sample sizes or some other extreme set of
conditions.

Breaking down the question, “What is your validity
coefficient?” a bit deeper, we find that the terms are in a singular
context. Meaning, the person asking the question is asking for only one
number or one value that represents the entire concept of “Does it
work?” or “How has this made someone else better?” It is important to
realize that a solid, proven assessment technology should be able to
show many studies from different companies, positions, and situations.
Each study, based on the situation, should show a relationship (in one
form or another) between the assessment outcome and the performance
metric. The documented volume of evidence should go way beyond one
“validity coefficient” and provide massive amounts of ongoing research
proving the technology has, and continues, to make other companies
better.

Just as with a hire-termination study, obtaining concrete
performance results for all positions may not be possible. Temper your
expectations for performance studies according to the scope of the
position. Small sample sizes, a lack of objective performance metrics,
or an insufficient amount of time for data collection can affect your
ability to conduct a quality study.

When evaluating an assessment
technology, ask to see multiple client case studies that demonstrate
significant performance improvements based on quality sample sizes.
Reputable assessment technologies should provide access to a technical
manual packed with studies that detail significant improvements in the
areas of turnover and performance.

Summary

There
you have it…the list of five business principles that should guide
your decision on your next purchase, or upgrade, of an assessment
technology. To recap, here are the five principles:

  • Principle #1: An assessment technology should be proven to predict performance.
  • Principle #2: An assessment technology should be the catalyst to continuous workforce improvement.
  • Principle #3: An assessment technology should be focused on fit; more is not always best.
  • Principle #4: An assessment technology should be more than just a score.
  • Principle #5: Assessment technology should be a tool that makes your organization better.

This is by no means an all-inclusive list, but if an assessment
falls short on one or more of these principles, keep shopping. Your
efforts will deliver great dividends for your company when the right
assessment technology is in place.

One tip I recommend to those
evaluating different assessment technology tools is to create a wish
list of features and functionality. Be sure that the needs of all levels
of end-users are included in your wish list. Then categorize the list
into groups consisting of the “must haves” and the “like to haves.” This
little exercise will help you focus your efforts during the evaluation
process to ensure you achieve maximum improvement within the
organization.

Math Drills Lite Iphone App Review

Math Drills Lite (Free)

REVIEW Nothing Light about Math Drills Lite

Opening Math Drills Lite presents the user with a choice. Addition, subtraction, multiplication, division, or a blend. Math Drills Lite is exactly what the name suggests: math drills. Users can choose to do a review of 10 problems in their chosen mode, or have a practice session of 10 problems that are timed in their chosen mode. It really is that straightforward. If a problem is answered incorrectly a review of it is offered at the end of the drill.

Math Drills Lite is guaranteed to strengthen anyones math skills. But its most impressive features are found in the settings menu. Users can enter custom facts, choose what part of the problem they want to be drilled on (for example, sums or addends in addition), select the layout they prefer for the problems, turn sounds on and off and even pick the colors they prefer for the app. Every aspect of the app can be customized in the settings menu, which means Math Drills Lite can be turned into the perfect math tutor for anyone.

This app only drills on problems featuring numbers up to nine. There are two-digit numbers involved, as 9 plus 9 is 18, and 24 divided by 8 is 3 but dont expect any problems involving numbers larger than nine. The app was most likely developed with school-aged children in mind, but even adults who rely on calculators will benefit from a little review.

When this app is used in practice mode, speed is key. After answering each question correctly, a speed is assigned to the session. Im not sure how the speed is calculated, but it seems to be based on the number answered correctly, how many times each problem was attempted and overall speed. When the app is used in review mode, users are shown a number line to help them out. If the user takes too long to answer, the number line animates itself to help the user get to the answer. The timing on the animation is customizable in the settings menu.

Math Drills Lite has two main menus: the drills and the setting. Everything is colorful, but not cluttered, making this app fun and easy to navigate.

– Melissa S.
2009, All rights reserved. AppShouter LLC

Iphone App Brainwave Tuner – Adjust Your Mood Barometer

Are you difficult to get into sleep? Find it is hard to concentrate on one thing? Eager to get rid of massive matters haunted in your mind? Want to calm down, but cant? All these troubles make you feel the doomsday of the world is coming soon. I bet your head is going to be cracked if there is another trivial thing plugged into your vision. If you can handle your extreme pressure in correct manner, good luck to you. If not, I suppose you may need to visit a psychologist or will be the new member of an insane house.

It is normal for people to be trapped into this phenomenon. How to help yourself out of it? It is easy: have a deep deep breathe, and then put on your earphones, turn on your iPhone, open the Brainwave Tuner, choose the sound pattern you want, and the last step: lay somewhere with a comfortable posture and enjoy the wave sound crossed into your brain.

Brainwave Tuner integrates advanced Electroencephalography theory and considerate humane operating design. The most distinctive feature of Brainwave Tuner is the wave sound is specially designed to cater users unique need. The wave strength in it can be changed through weak to strong at will. With different wave patterns, user can relax his body and mind and stimulate his thought. Once tuned in, the brain will be closed into a quiet status and become calm. It has the following distinguished features:

– Electroencephalography theory is fully employed
– Special Wave sound is adopted
– Wave strength can be adjusted between weak and strong based on users need
– 10 top selected built-in preset sound waves
– A very easy-to-use user interface

Users are appreciating this application with great rewards. It works just like a sleeping pill, a hypnologist, and a good friend near to heart.

I believe we human beings need it to live more comfortable in this bustling and high-pressure society. Poorly need it! Detailed information at iPhonemofo.

Resolving Ext3 Error No journal on filesystem

Ext3 is a journaled file system and maintains a journal file to prevent instances of metadata corruption due to unexpected power outage. Due to its wide testing base and relative simplicity, the file system is considered to be safer than its counterparts. But it is not completely immune to crashes. At times, when using a Ext3 formatted drive, you might receive errors suggesting that system doesn’t find any journal on the file system. As a solution, you might be compelled to reinstall the system. In such situations, you need to check the status of your backup that should be valid and completely updated to restore information from. But if you observe any backup related issues, Linux Recovery utilities should be used.

For an instance, while attempting to mount your Linux based hard drive, you might come across the similar error message:

“ext3: no journal on filesystem”

The system fails to boot and data remains inaccessible. If you make to boot the system somehow, you might observe some of the files and folders missing from the system.

Cause

Among various reasons possible for this behavior, some of them are as below:

You have recently updated the kernel but the process ended improperly

No or corrupted journal file

File system is severely corrupted

Solution

To try resolving the existing issue, follow these steps:

Boot the system using an installation disc and access the Rescue Mode. Mount the existing installation and reinstall the improperly installed kernel package

You can create the journal file by executing the below command:

tune2fs -j /dev/yourpartitionid

If above measures fail, try repairing the file using fsck. Boot the system using an installation disc and access the Rescue Mode. While making the system unmounted, run fsck for all the hard drive partitions except the swap partition.

If these measures don’t help and your data still is not accessible, use Linux Data Recovery tools for successfully recovering your lost data. Linux Recovery applications incorporate high end scanning algorithms to scan the logically crashed media to recover data while maintaining their integrity.

Stellar Phoenix Linux Data Recovery is a world’s known product to recover lost data from Ext2, Ext3 and ReiserFS based drives. The application employs powerful algorithms to result effective and safe data recovery. Embedded with advanced recovery features, this Linux Data Recovery tool supports most of the Linux distributions including Red Hat, SUSE, Ubuntu, SlackWare and others.

Author is researching on ext3 file system error become the cause of data loss. For lost linux recovery author suggested to use linux data recovery software to recover lost linux data..

Advantages Of Linux Smart Phones

Linux smart phones are user-friendly with advanced features of Linux operating system. Though there are many operating systems available for Smartphones like Symbian, Windows Mobile, Palm etc, Linux operating systems have been serving its users for many years. You may be interested to buy a Linux Smartphone as you have been used to Linux building-block functionality. Another reason is that you may want to experience new things and unique features available in this OS. Though Linux Smartphones are still in the growth phase, due its open source nature you have the freedom to write programs by yourself if you are familiar with programming. Linux Smartphones are not specially catering to casual and business users, but in the coming years it will have its own significant market share.

Most of the interesting functions available in Linux smart phone are due to the fact that it is operated by Linux operating system. Most of the Smartphone functions like Web browsing, Office documentation and editing, Media playback and instant messaging are available. Linux Smartphone permits you to download as well as compile various packages that you can fit in your phone. You can remotely control the PC by applying VNC and can also make free phone calls by using soft phone based on SIP. If you want to talk to somebody during movement, you can use 802.11b/g. You can write to yourself or use sourceforge and find if its already written by someone. All these are special advantages for Linux Smartphone users.

With all the functions similar to other smart phones, these phones are still in some ways a Pipe dream. Their existence is very minimal and when compared with other Smartphones, there are not many American providers offering Smartphones currently operating on Linux. But its getting improved as the next version of Palm operating system is going to be based on Linux. Other than supporting open source projects on Linux, it also compatible with established Palm Operating system applications and that is a boon to work on both platforms. There is going to be launch of Motorola Smartphones based on Linux platform in the future, as there is already one handheld device with certification from FCC.

There was great success in Smartphones running with Linux operating system on hardware designed for other brands of Smartphones. Palm Smartphone Treo runs quite nicely with Linux and so for other hardware also it wont be that harder. Anything can happen in the future like that we may buy smart phones without any operating system and we can install our preferred operating system on our Smartphone. One of the obstacle Linux faces is its intercompatibility with the other Smartphones in the market Linux Phone Standards forum (LIPS) plays a main role while the sender uses WiFi to contact you. Access formerly known as Palm source who are the makers of Palm operating system are contract members in LIPS and its next version will be Linux based. This does not imply that Linux Smartphones are not seriously supported. The most successful Smartphones in the market like Motorola, Samsung, Panasonic and NEC are running on Linux. The Latest Smartphone SCH-i819 of Samsung focused for Chinese businessmen offers special version of Linux for ideal input of Chinese characters and touch screen support. The additional feature BREW helps for most of the Smartphone downloads.

Most Effective Tool For Data Recovery

File loss from Home windows can happen because of the next
reasons – draining trash can folder, deletion of files while using
change Remove secrets, removing files or folders using command-line or
through dos, virus infection, improper system shutdown, harmful
electrical currents, mix linked files, operating-system malfunction,
formatting from the drive or because of hard drive corruption. Data lost
because of these reasons will stay inaccessible within the system. If
you want to access these files, you have to first recover them utilizing
a file restore software, which rebounds Home windows Vista, Home
windows XP, Home windows 07.

Exactly what does file recover tool work?

Personal
files recovery tool retrieves erased data from Home windows hard disk
drive. It is capable of doing recuperating data from FAT16, FAT32, NTFS
and NTFS5 file system partitions. Many of this kind of software can
restore erased files from internal hard disks, hard disk partitions,
exterior hard disk drives, memory cards, USB drives, and zip drives.

MagicCute
File Recovery is an excellent and condition-of-the-art file recovery
tool, able to locating and storing your lost data in a preferred
location within the fastest and most secure way. Among the most typical
problems it may fix, data recover reaches its core expertise.

Following are four functions of MagicCute File Recovery :

1.Files
Recovery Just simple clicks, the files you discover important later on
carelessly remove, simply click the button “Files Recovery” after which
choose the sources and scan mode, then one easy “Next” click will help
you recover the information from the file.

2.Formatted
Recovery When the partition or disk of the pc corrupts, don’t worry.
This function is made to recover the information in the corrupted disk
and it’ll ignore any file system structure.

3.The procedure is quite simple, much like Files Recovery.

4.Photo
Recovery This part allows you to recover lost photos, pictures, images
from hard disk, expensive card, digital camera models, memory and USB
Drive.

5.Image Creation This part can copy the condition from
the partition sector for your image and you will recover the information
later.

All the entire process of the 4 function are extremely
easy and only by using the interface step-by-step, hard disk file
recovery can be achieved rapidly and simply. Be unclear about the hard
disk loss of data and send your computer for costly maintenance? Using
the qualities of fast, professional and secure, MagicCute File Recovery
continues to be shown a trusted tool for hard drive data recovery.

Era of Open Source Softwares-Linux

Of all the open source operating systems, LINUX heralded an era of freedom from licensed softwares and signalled the end of the road for monopoly softwares from the giant Microsoft. With the arrival of LINUX and its many versions, users got themselves liberated from the shackles of Windows operating systems and soon found that they could edit and tinker with LINUX to generate new versions of the famous OS. Linux has gained an unexpectedly large amount of interest in the home market over the past two years. This could be due to any number of reasons including, it’s both free and open source, almost all applications are free and open source, the stability is unsurpassed, the code is constantly revised, updated and added to by a numerous amount of programmers across the world. Linux is undisputable a giant in the OS world, with just the name Linux being a symbol of stability and security. With the interest in Linux growing, many new distributions have surfaced offering easy installation and configuration. Well-established distributions such as Redhat are also striving to meet the same goals.

Linux is an operating system and therefore is the basic set of programs and utilities that make the computer run. Some other common operating systems are Unix (and its variants BSD, AIX, Solaris, HPUX, and others); DOS; Microsoft Windows; Amiga; and Mac OS.Linux is Free Software. In a nutshell, software that is free in the sense that Linux is distributed along with its source code so that anyone who receives it is free to make changes and redistribute it. Users are free to make copies of Linux and give them to friends, it’s also fine to tweak a few lines of the source code.The only catch is that the user who modifies it has to necessarily make available the source code to all users. Linux is not owned by anyone. One misconception many first-time Linux.com readers have is that this site, Linux.com, is similar to Microsoft.com, which is owned and controlled by the company that produces the Windows operating system. No one company or individual “owns” Linux, which was developed, and is still being improved, by thousands of corporate-supported and volunteer programmers all over the world.

Users are generally provided with Linux distribution that contains not only the basic Linux operating system, but also programs that enhance it in many ways. Anyone who wants to put together his or her own Linux distribution is free to do so, and we know of more than 200 different Linux distributions that fill special “niche” purposes. But we advise new users to stick with one of the five or six most popular general-purpose Linux distributions until they know a little about what Linux can and can’t do. You can get Linux from a number of online software repositories, including the official Web sites for each distribution. It helps to have a fast connection and a CD burner so you can quickly download an .ISO image of the distribution and burn it onto a CD. You then can load the bootable installation programs that lead you, step by step, through the process of getting Linux on your computer.

The more popular distributions are available in many computer stores and directly from each distribution’s publisher. The convenience of a distribution on CDs, including manuals, generally makes your first installation so much easier that it is well worth the money.

Linux boasts of some of the best free online support for its operating system.Take advantage of some free, expert technical support: the Linux Users Group, or LUG. The heartbeat of Linux support, and of Linux itself, is the LUG. There are LUGs in almost every country in the world, where you can get Linux advice and help from people who live near you, speak your language, and are willing to donate their time so that new users can learn about Linux without going through any more head-scratching than necessary.Each LUG operates independently and has its own style and meeting schedule. Note that if there is no LUG close enough for you to conveniently attend meetings, most LUGs maintain email lists you can join and use to get answers to any Linux questions you have.

The best-known corporate GNU/Linux distribution is REDHAT. Mandrake Linux was the first Linux distribution that worked hard to make Linux easy for ordinary desktop users. Freely downloadable version available; commercial versions have pre-integrated sofware packages and are easier for first-timers to set up than the download edition. There are other distributions like Fedora, Debia, Knoppix,Suse, Slackware, MEPIS, Gentoo and so on.

Computer Memory Tips- Free Interesting Facts For Computer Memory Price

Buying pc upgrades is able to be confusing. Purchasing computer memory is ready to be even trickier. But armed with the right knowledge, even the the majority novice pc user will be ready to get pc memory with confidence.

The pc firmware initiates a reset following saving the data; the personal computer technique determines whether a prevailing reset is firmware initiated; if the existing reset is firmware initiated, the personal computer technique copies the info at the 1st memory controller having the first memory controller to employ the first pc memory, and uses the first pc memory to initialize the second memory controller to employ the second pc memory; and if the current reset isn’t firmware initiated, the pc system generates the information that enable the first memory controller to use the 1st computer memory, and saves the configuration info in the memory space.

If you really suffer ever been trying to run two or three plans at once on your computer, and it appears to get exceedingly slow and sluggish, you actually may also suffer a pc memory issue. Computers suffer a pair of sorts of memory, and both also are exceedingly vital if you really accomplish many of your day’s activities on a personal computer.

RAM: We will be ready to upgrade the memory of the personal computer by the adding further RAM at the memory slots during motherboard during order to increase the overall performance of the computer. Random Access Memory (RAM) is the sort of info storage during the computer during which any storage location can be accessed directly. Both the size and capacity of RAM are reduce than the difficult disk.

Motherboards having 4 memory slots: A few motherboards suffer 4 RAM slots. So, we would believe that we will be in a position to attach four GB of RAM at the personal computer which will greatly increase the performance of the personal computer. Yes, we can connect 4 GB physically nonetheless a few of the of the 32-half operating strategies may also not supply the entire four GB RAM of memory to us in place it sets a part some part of the memory for internal uses and provides around 3 GB for us. Therefore, if we want to utilize all the memory slots for skyrocketing the performance the better choice is to connect two 1 GB memory modules to two slots and 2 512 MB memory modules to the remaining slots. Even if we add 4 1 GB memory modules to every of the slots we are also going to get the performance that is virtually same as three GB most effective. Therefore, we are also unnecessarily spending money on single 1 GB memory module.

Finally, the monitor is what you will stare at while using the computer. Broader and larger screens allow way more things to fit on the screen. LCD is the norm, 19 inch or bigger, large screen if practicable is what I recommend.