Things About System Testing You Should Know
System Testing (ST) is a black box testing technique performed to evaluate the complete system the system's compliance against specified requirements. In System testing, the functionalities of the system are tested from an end-to-end perspective.
System Testing is usually carried out by a team that is independent of the development team in order to measure the quality of the system unbiased. It includes both functional and Non-Functional testing.
Reasons for Performing System Testing:
System testing is performed by professional or individual testers for various reasons. From evaluating the system to ensuring its compliance with the specified requirements, this type of testing offers great aid to the testing team as well as the other stakeholders of the project. Few of the other reasons for performing this testing are:
It is the first level of software testing where the software / application is tested as a whole.
It is done to verify and validate the technical, business, functional and non-functional requirements of the software. It also includes the verification & validation of software application architecture.
System testing is done on a staging environment that closely resembles the production environment where the final software will be deployed.
Seven steps of System Testing:
Creation of System Test Plan
Creation of system test cases
Selection / creation of test data for system testing
Software Test Automation of execution of automated test cases (if required)
Bug fixing and regression testing
Repeat the software test cycle (if required on multiple environments)
Like software testing, system testing is also an amalgamation of multifarious testing techniques, which allow the team to validate the overall performance and functionality of the product. Each of these testing techniques are focused on different aspects of the product and cater to various requirements of the client/user. These types of system testing are:
Installation Testing:- It is used to check desired functioning of the software, after its successful installation, along with, all necessary requirements
Functionality Testing:- A type of black-box testing, that enables to assess and evaluate the proper functioning of the software, according to its pre-defined requirements.
Recoverability Testing:- It is achieved by, deliberate failure or crash of the software, to assess its ability of getting recovered, quickly.
Interoperability Testing:- It ensures the ability of software to get compatible and interact with other software or system and their components.
Performance Testing:- It is done, to examine the response, stability, scalability, reliability and other quality metrics of the software, under different workloads.
Scalability Testing:- Software should be scalable, along with the increase in load, number of concurrent users, data size, etc. This raises the need for scalability testing, which is conducted to take care of scalability related issues, with the software.
Reliability Testing:- This testing assesses the degree of the software, between two failures, and the time it takes to repair.
Regression Testing:- It guarantees the original functionality of the software, after each modification in it.
Documentation Testing:- This involves, evaluation of documentation artifacts, prepared before and during the testing phase, in order to assess the testing requirements, covers under documentation testing.
Security Testing:- To assess, the security features of the software, so as to ensure, protection, authenticity, confidentiality and integrity of the information and data.
Usability Testing:- Ensures software's user-friendliness feature and prevents end-users from issues or problems, while using and handling the software product.
