Third time’s a Charm :) – 4 Kinds Of Hiring Data You Need To Be Tracking

3. …as well as what can be measured.

Our experience shows that the most reliable metrics are the ones that can be properly and objectively measured. It is easier and less subjective to focus on hard skills. Skills such as “how well somebody can use Excel” can be a reliable metric, especially when it comes to productivity at the workplace, so it can be hard to ignore.

Everybody knows that soft skills are really important. However, it is so hard to measure them, let alone to get honest responses from candidates, that the attempt to get any metrics usually is not worthwhile.

Stelios Lambropoulos, Product Manager, TEST4U


Read the full SparkHire article

Well done Kornilios :)

How to become an IoT developer: 6 tips

By 2020, there will be a projected 20 billion Internet of Things devices in the world. Here’s how to get your start building connected things.

There are four stages in developing an IoT device, according to Kornilios Ampatzis, a software developer at InfoLearn:

  • Assembly of the physical hardware: This requires engineering skills, and is usually not completed by a developer. Most IoT devices use primarily pre-assembled boards and sensors connected on them.
  • Programming the device: This requires programming skills to read the data from the sensors connected on the IoT device, and send them to the server.
  • Programming the server that will receive and store the data from the device: This requires the use of server side languages, like PHP, ASP.NET or Node.js, and database queries based on MySQL or some other SQL derivative.
  • Displaying data to the device user: This involves creating the web page or app that will depict the collected data to the user, which requires web development knowledge of PHP, JavaScript, HTML, CSS, MySQL, or another framework.

“Usually a developer is not responsible for all those stages,” Ampatzis said. “So, in order to specify on how to get started on a career in the field, first they have to decide on which stage of the development process they want to get aboard.”

Read the full TechRepublic article

UBER Analytics Test 3.1 & 6.16

UBER Analytics Test 3.1 & 6.16

Ridesharing is not a new idea. From time to time we have all shared a ride with friends or colleagues to reduce the cost of our transportation.

UBER put this idea into practice with the help of technology and started to provide a service which -in less than 8 years- has spread around the world.

It is currently valued at $60 billion, which is the highest value for a startup in history.

Despite all the voices against this kind of service, UBER has managed to change the rules in public transport.


This is why there are thousands of applicants trying to get a job inside UBER.

The applications for these jobs begun to grow exponentially, so UBER decided to create an interview process so as to start “thinning out the herd”.

Thus, the UBER Analytics Test was created. It consists of 32 questions, 4 of which are essay questions. The remaining 28 are questions that require a specific skillset in order to be answered within the 2-hour time limit of the test.

This skillset requires consists of simple-to advanced math, and basic-to advanced knowledge of Excel or similar software. It also requires an extensive knowledge of UBER and how it works.
This test is extremely hard, and it requires studying for. Being an Excel guru doesn’t mean that you are sure to ace the test, since the test uses specific UBER terminology and most of the questions are based on existing UBER services. This is knowledge that you need to master before the actual test.

Through the years, this test process has evolved and it is currently
on version 6.16.

We the TEST4U team, have realized that there is a need for a complete Training system for the Uber Analytics Test, so we have created the UBER Analytics Test, preparatory course.

This course, is offered completely free, for the present time, so feel free to try it out

TEST4U UBER Analytics Test v.3.1 & v.6.16

It is targeted to people, who have, at least, the basic skills in Excel, and it covers the versions 3.1 & 6.16 of the UBER Analytics test.

This course consists of live questions, similar to the ones an applicant will have to face during his UBER Analytics Test. This means that the trainee will have to answer these questions, by using the actual Microsoft Excel application. Therefore, the applicant will be more prepared for the actual test.

Each question is accompanied by a brief video lesson which provides a way to properly answer it.

The course also includes multiple choice questions similar to the ones of in the actual test.

In order to answer all these questions, a trainee must be accustomed to the way UBER works, as well as to the specific terminology used. Therefore, we have created three PowerPoint presentations to accompany our course, so as to provide you with this invaluable knowledge.

• The first presentation explains the interview process and what to expect on each of its steps.

• The second presentation contains all the terminology and the vocabulary found in the UBER Analytics Test.

• The third presentation includes a lot of sample essay questions. Essay questions are part of UBER Analytics Test, but they may be also asked during the face to face interviews.

Essay questions SHOULD be answered subjectively. The applicant should avoid repetition and plagiarism during the test, because it will ultimately impact negatively the applicants’ chances to succed.

We encourage you to process all this material, along with other specialized material you may encounter. Taking the UBER test is a challenging experience and you will need all the help you can get.

We wish you all the best for this ride!

The TEST4U Team

TEST4U – Data Analysis

TEST4U – Data Analysis
Being a data analyst requires a variety of skills in Excel.

If you dream of working as an analyst, but you lack a few skills in order to master MS-Excel, TEST4U Data Analyst is the ultimate know-how interactive tutor!

We have equipped TEST4U with the following, in order to help you acquire these valuable skills:

We will help you learn the usage of more than 180 Excel functions, about:
Text manipulation
Mathematical calculation
Logical decisions
All the lookup functions you can use to retrieve data from your sheets
Almost all the financial functions and
Almost all the statistical functions Excel has to offer
You will learn about array and multi-sheet formulas, which will give you the needed flexibility to use data from multiple sources.



The built-in what-if tools of Excel along with the Solver add-in are the sure way to answer everyday questions and problems you will face (for example how much should a factory increase production, to meet their quota for next month).

No one can avoid mistakes, but the chapter about Auditing tools will teach how to minimize them.

Data Management: The chapter in data management will expand your knowledge on data manipulation showing you ways to:
Import data from various sources
Filter data
Sort data
Use form controls in order to be able to create dashboard-like sheets
Use the Data Analysis Tool Pak add-in.
The data analysis Tool Pak add-in along with the Solver add-in are the main tools you can use to answer to more specialized questions, which are part of the daily routine for someone who is doing statistical analysis, or business modelling. You will learn how to answer these questions with over thirty examples inspired by real life (display and interpret Regression statistics, predict a company’s revenues or execute a Monte Carlo simulation).

Power Maps! One of the most impressive add-ins of Excel, for which we have dedicated a whole chapter!

You will be able to derive useful information from the data in a Pivot Table: Once you finish your training, you will be able to use pivot Tables at their full extent, including the use of slicers, trendlines, and pivot charts. In addition, you will learn how to use all your data with Power View.

Using large amount of data can prove to be a lot difficult, especially if you want to extract a fragment of them. Excel provides a tool to create database like queries on your Excel data. For this tool, that was called Power Query on previous Excel versions, we decided to devote a complete chapter.

Large amounts of data from various sources are no longer a headache! These chapters will change the way you deal with them:
Power Pivot add-in
DAX functions

Sharing: All professional work you do must be shared with your boss or colleagues. We will teach you how to save your workbooks in a variety of different formats and how to share your worksheets with your team.

There is an extensive chapter on basic Excel training, in case you want to refresh on your Excel knowledge, or if you are newcomer to it.

Just visit

The Academy of Code

The is an interactive online community that involves the contribution of volunteers from many countries around the globe so as to promote coding as a way of thinking. is built on the basis of the interactive way of learning, so as to engage people in coding in a fun and addicting way!


Everyone is welcomed to join the community and contribute to spreading the coding even further.

The online learning platform has been used by more than 50.000 students of 41 countries since 2014, during the officially scheduled EU Code Week Events. But this platform is much more than simple material for demonstration during a one-week period, once a year.

Available in Greek, English, Chinese and Serbian

TEST4U: new entries

TEST4U is here for you with a wide range of supported applications!

New Entries:

  • Long Documents & Thesis Management
  • TEST4U Touch Type for the English keyboard



Along with the famous modules:

  • Microsoft Office
    • Word
    • Excel
    • PowerPoint
    • Access
  • LibreOffice
  • OpenOffice
  • Google Docs
  • Web Design
    • HTML
    • CSS
    • JavaScript
    • php
    • MySQL
  • AutoCAD

DIPLOMA Business Office Action Comic Movie

.Our first very short length comic story about our unique Certificate DIPLOMA BUSINESS OFFICE Certificate.

DIPLOMA Business Office Certificate is awarded upon successful completion of the examination in three modules simultaneously.

These modules include Word Processing application, Spreadsheets and Internet Services.

The technology behind DIPLOMA Business Office supports examination in Microsoft Office, OpenOffice or LibreOffice suites in order to provide a full range of option for those interested in certifying their skills in a variety of applications.