Web Software Testing
The software development life cycle (SDLC) is composed of various stages. Software testing is one of the significant phases within the software development cycle (SDCL). A variety of testing methods are used beginning with the application’s development until it gets the marketing stage. From the initial development of the application until it reaches the maketing phase different testing types will be used. Moreover there are different varieties of the software that needs to be tested before it is released to the costumer.
One variety is software for web applications. With the advancements in Internet and its high impact on our day to day life, web software has achieved high importance in software industry and our daily lives. The majority of the security threats start off from Internet and it is necessary to make sure that the web software is carefully tested prior to releasing to the costumer.
The time available to develop and test web software is always limited. While the web software is being designed and developed it is also being tested by the testings engineers using different types of tests. The different types of tests can be grouped in code testing, load testing, compatibility testing, functional testing and regression testing.
The web software is usually released by means of a model of software release known as alpha/beta testing.Alpha testing is a replicated or real ready testing by would-be users/customers or a separate testing team on the developers’ location. The software is incomplete at this point and testing is done only for small modules of the software. Software that passed the alpha test will not be released till all the major functionalities of the software are built and tested.
Beta testing is done by a limited amount of users that can use the software before its official release takes place. The alpha/beta testing method is not the standard procedure when testing web site design. This is because HTML coding makes it very easy to design independent web pages that can afterwards being easily integrated so the design team can code and test each page independently.
In code testing the software testing or development engineer examines the codes for software bugs. It’s essential for the software to be free of bugs because the web development process is very quick. Paired-programming is one of the favourite methods that highly qualified testers can use to produce bug free coding.
Paired programming is a software development method in which two programmers work together at one keyboard. The developer typing the code is called the driver while the programmer that checks every line of code as it is produced is called the observer or the navigator. The judgment behind taking up this method is the following. The Economist proclaims that, “Laurie Williams of the University of Utah in Salt Lake City has shown that paired programmers are only 15% slower than two independent individual programmers, but produce 15% fewer bugs.”
As the development process continues the software is tested repeatedly. By the time it’s finally released the software is free of bugs. Load testing is done to see at what point the application fails or the performance reduces when under heavy loads such as multiple users on or heavy server traffic. This type of testing will help to arrive at statistics such as how many users the site will sustain at the same time, the quantity of communication it will hold and the reaction time under various circumstances.
The testing done to estimate the compatibility of the application with the different interacting hardware of software is the Compatibility testing. This method tests how good the software is in interactions with operating system, peripherals, database, browser etc. It also tests the computing capacity of the hardware platform and the peripherals.
Functional testing confirms its specifications and accurately performs all of the required tasks. This involves doing a series of tests that perform a feature by feature validation of behavior, utilizing a wide range of normal and erroneous input data. Regression testing is carried out to check that any changes made to the code in order to enhance it or to fix defects has not affected any functionality.
When interative methodology is used to develop software regression testing is crucial. Iterative software development is a method in which new functionality is added to existing software. In this case one should make sure that the new addition has not affected any of the existing functionality. Regression testing is done to find out any of such instances. The above mentioned methods are essential tests to complete the web software testing.
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