What is Software Testing?

-
What is Software Testing?
Software testing is a process of executing a program or application with the intent of finding the software bugs.
Software Testing
  • It can also be stated as the process of validating and verifying that a software program or application or product:
    • Meets the business and technical requirements that guided it’s design and development
    • Works as expected
    • Can be implemented with the same characteristic.
Let’s break the definition of Software testing into the following parts:
1)  Process:  Testing is a process rather than a single activity.
2)  All Life Cycle Activities: Testing is a process that’s take place throughout the Software Development Life Cycle (SDLC).
  • The process of designing tests early in the life cycle can help to prevent defects from being introduced in the code. Sometimes it’s referred as“verifying the test basis via the test design”.
  • The test basis includes documents such as the requirements and design specifications.
3)  Static Testing:  It can test and find defects without executing code. Static Testing is done during verification process. This testing includes reviewing of the documents (including source code) and static analysis. This is useful and cost effective way of testing.  For example: reviewing, walkthrough, inspection, etc.
4)  Dynamic Testing:  In dynamic testing the software code is executed to demonstrate the result of running tests. It’s done during validation process. For example: unit testing, integration testing, system testing, etc.
 5)  Planning:  We need to plan as what we want to do. We control the test activities, we report on testing progress and the status of the software under test.
6)  Preparation:  We need to choose what testing we will do, by selecting test conditions and designing test cases.
7)  Evaluation:  During evaluation we must check the results and evaluate the software under test and the completion criteria, which helps us to decide whether we have finished testing and whether the software product has passed the tests.
8)  Software products and related work products:  Along with the testing of code the testing of requirement and design specifications and also the related documents like operation, user and training material is equally important.

Comments

Post a Comment

Popular posts from this blog

Compare a range of Hardware and Software Troubleshooting Tools

-
Image
H ARDWARE TESTING TOOLS  Hardware testing tools are usually for testing a computer while it off, and to diagnose/fix more complex hardware problems. These tools I am about to compare all have different uses and so are hard to compare in this format MULTI-METER  A multi-meter is used to measure the electrical properties flowing through a cable, such as amperage, voltage and electrical resistance. It can measure other electrical variables as well, but these are mostly not used for computer maintenance purposes.  The multi-meter is generally just used to narrow down the problem to the power supply. However it can also be used to check if the power source the computer’s power supply is connected to, is also running within tolerances. ETHERNET CABLE TESTER  An ethernet cable tester is used to test an ethernet cable’s ability to send/receive data. The tester will usually send some test data or power to the other end, which the tester then chec...
Read more

What is System testing

-
Image
System testing of software or hardware is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements. In system testing the behavior of whole system/product is tested as defined by the scope of the development project or product. It may include tests based on risks and/or requirement specifications, business process, use cases, or other high level descriptions of system behavior, interactions with the operating systems, and system resources. System testing is most often the final test to verify that the system to be delivered meets the specification and its purpose. System testing is carried out by specialists testers or independent testers. System testing should investigate both functional and non-functional requirements of the testing. Types of System Testing Usability Testing -     Usability testing mainly focuses on the user's ease to use the application, flexibility in ha...
Read more

What is Boundary value analysis in software testing?

-
Image
Boundary value analysis  is based on testing at the boundaries between partitions. Here we have both valid boundaries (in the valid partitions) and invalid boundaries (in the invalid partitions). As an example, consider a printer that has an input option of the number of copies to be made, from 1 to 99. To apply boundary value analysis, we will take the minimum and maximum (boundary) values from the valid partition (1 and 99 in this case) together with the first or last value respectively in each of the invalid partitions adjacent to the valid partition (0 and 100 in this case). In this example we would have three equivalence partitioning tests (one from each of the three partitions) and four boundary value tests.  While testing why it is important to do both equivalence partitioning and boundary value analysis? because every boundary is in some partition, if you did only boundary value analysis you would also have tested every equivalence partition. However, this app...
Read more