The software system desires to be checked for its intended behavior and direction of progress at each improvement stage to avoid duplication of efforts, time and cost overruns, and to assure completion of the system within stipulated time.The software device needs to be checked for its intended behavior and direction of progress at each improvement stage to avoid duplication of efforts, time and cost overruns, and to assure of completion of the system within stipulated time.
System testing and quality assurance come to aid for checking the system. It includes −
Let us go through them briefly-
Testing is the process or activity that checks the functionality and correctness of software according to specific user requirements for you to improve the nice and reliability of system. it is an costly, time consuming, and critical method in system development which calls for proper planning of overall testing procedure.
A successful test is one that finds the errors. It executes the program with explicit intention of finding error, i.e., making the program fail. it is a process of evaluating system with an intention of creating a strong system and mainly focuses on the weak areas of the system or software.
System testing starts on the module level and proceeds towards the integration of the entire software system. different testing techniques are used at different times whilst testing the system. it is conducted by means of the developer for small projects and by independent testing groups for large projects.
The following stages are involved in testing –
it is a statement that gives data approximately the various levels, methods, tools, and techniques used for testing the system. It should satisfy all of the needs of an organization.
It provides a plan for testing the system and verifies that the system under testing fulfils all the design and functional specifications. The test plan provides the following information −
It includes the steps that have to be observed to execute each of the test cases. these procedures are specified in a separate file called test method specification. This file also specifies any unique requirements and formats for reporting the result of testing.
Test Result Documentation
Test result report carries brief information approximately the total number of test cases finished, the number of errors, and nature of errors. those results are then assessed against criteria in the check specification to determine the overall outcome of the test.
Testing may be of various types and different types of tests are conducted depending on the kind of bugs one seeks to discover −
Also called program testing, it is a type of testing where the analyst tests or focuses on each program or module independently. it is performed with the purpose of executing every statement of the module at the least once.
In Integration testing, the analyst tests multiple module working together. it is used to locate discrepancies between the system and its original objective, present day specifications, and systems documentation.
Feature testing determines whether the system is functioning effectively consistent with its specifications and relevant requirements documentation. functional testing commonly starts with the implementation of the system, which is very critical for the success of the system.
functional testing is divided into two categories −
To carry out system testing successfully, you need to follow the given rules −
It is the review of system or software products and its documentation for assurance that system meets the requirements and specifications.
The objectives of conducting quality assurance are as follows −
There are several levels of QA and testing that want to be performed with a view to certify a software product.
Level 1 − Code walk-through
At this level, offline software is tested or checked for any violations of the official coding rules. In standard, the emphasis is placed on exam of the documentation and level of in-code comments.
Level 2 − Compilation and Linking
At this level, it is checked that the software can compile and link all official platforms and operating systems.
Level 3 − Routine Running
At this level, it is checked that the software can run properly below a spread of conditions such as positive number of events and small and large event sizes etc.
Level 4 − Performance Test
At this final level, it is checked that the performance of the software satisfies the previously certain performance level.
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