SayPro TESTING SOFTWARE AGAINST PUBLISHER’S SPECIFICATIONS

As a computer technician, once you have installed system and application software, you need to test that they work properly before you let the user start working on the computer. Before you start testing the installations, you need to make sure that;· The computer has rebooted after the software installation.· The new operating system has started· All applications have been installedOnce these operations and tasks have been completed, you need to check the computer logs to ensure errors are not occurring. Logs are records of events that have happened recently.The device manager can be used to view the layout of all the hardware that you installed. This is illustrated below. The device manager shows you if there are any problems with any specific device or any device is missing;If you want to view the logs of problems that are not serious enough to make installation fail, but might cause problems in the future, you use the event viewer in windows. This is shown below;In addition to the Windows tools, you can buy commercial system analysis tools that help you to make sure that the system is performing well. Applications also have a User’s guide or Help that usually lists the types of errors and problems that may occur when you use them.In addition, applications also often have readme file. The readme file, as its name suggests, asks you to read about the application. It often gives you information about the installation process.Even if you are an experienced computer user, you should go through the applications you have installed when you have finished installing them. You should check that all the functions work as you go through the application. This will help you to test the installation.Burn-in-testing is another way of testing the installation. Burn-in may be conducted to ensure that a device or system functions properly before it leaves the manufacturing plant or may be part of a repair or maintenance routine.An end user may use a burn-in process to ensure that new equipment is functioning properly, for example, running a new computer for several days before committing it to serious use. If any of the components are defective the problem will usually show up within this initial testing time frame.When a faulty device or system is brought into a repair facility, the malfunction might not occur until the hardware has been warmed or cooled to a certain temperature. Humidity may also be a factor. Under these circumstances, a burn-in must be performed and environmental parameters varied until the problem is found. The equipment is powered-up and then left to run continuously for hours (or sometimes for days) until the malfunction is observed and can be diagnosed.The term burn-in is sometimes used in reference to a phenomenon in which faint, permanent “ghosts” appear on video displays that have displayed fixed images for long periods of time. This problem is also known as screen burn or phosphor burn. In older cathode-ray-tube (CRT) displays, screen savers were used to prevent burn-in. Newer computer displays rarely exhibit burn-in except under extreme conditions. However, burn-in remains a potential problem with large-screen video displays such as those found in home theatre systems.