1. What is Software Testing?
Software testing is more than just error detection;
Testing software is operating the software under controlled conditions, to (1) verify that it behaves “as specified”; (2) to detect errors, and (3) to validate that what has been specified is what the user actually wanted.
Verification is the checking or testing of items, including software, for conformance and consistency by evaluating the results against pre-specified requirements. [Verification: Are we building the system right?]
Error Detection: Testing should intentionally attempt to make things go wrong to determine if things happen when they shouldn’t or things don’t happen when they should.
Validation looks at the system correctness – i.e. is the process of checking that what has been specified is what the user actually wanted. [Validation: Are we building the right system?]
In other words, validation checks to see if we are building what the customer wants/needs, and verification checks to see if we are building that system correctly. Both verification and validation are necessary, but different components of any testing activity.
The definition of testing according to the ANSI/IEEE 1059 standard is that testing is the process of analysing a software item to detect the differences between existing and required conditions (that is defects/errors/bugs) and to evaluate the features of the software item.
2. Software Testing
Software testing is any activity aimed at evaluating an attribute or capability of a program or system and determining that it meets its required results. [Hetzel88] Although crucial to software quality and widely deployed by programmers and testers, software testing still remains an art, due to limited understanding of the principles of software. The difficulty in software testing stems from the complexity of software: we can not completely test a program with moderate complexity. Testing is more than just debugging. The purpose of testing can be quality assurance, verification and validation, or reliability estimation. Testing can be used as a generic metric as well. Correctness testing and reliability testing are two major areas of testing. Software testing is a trade-off between budget, time and quality.
3.What Does Oracle Says……
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- Comprehensive solution — covers functional testing, load testing and test management
- Maximize application performance for peak loads — Delivers rigorous validation that protocol-based legacy testing tools cannot provide
- Reduce testing effort — Ensures functional reliability while reducing your testing effort by 50% or more
- Simplify test process management — Provides integrated test management for functional and load testing but also includes defect and requirements tracking.
- Intuitive Web-based interface — Enables remote access and multi-user, concurrent, collaboration
So there are 100s of definitions over the web for software testing but all the definitions will speak the same thing and that is how to increase the accuracy, efficiency, client expectation, performance, reliability, interoperability, compatibility, security, usability………… by finding the bugs as early as possible and reporting the same to the developers.
The complete flow the process will be explained below one by one with the hierarchy map.
I am planning to explain the software testing with most of the common and mostly used SDLC, with most of the types of tests used in the day to day life of the software development and test.
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