Nonfunctional Testing Types
1- Performance Testing
The first type of nonfunctional testing is performance testing. In order to ensure that the response time of a system is acceptable, performance testing is carried out. By setting up a considerable load and a production-sized database, the system is tested for response times of several business-critical processes.
Key elements that include:
– Validate that the system meets the expected response time.
– Evaluate that the significant elements of the application meet the desired response time.
– It can also be conducted as a part of integration testing.
– It can also be conducted as a part of system testing.
2- Load Testing
it is used to check whether the system can sustain the pressure or load of many users accessing the system at one time, load testing needs to be carried out that should be conducted on a dedicated server which stimulates the actual environment.
This nonfunctional testing includes:
– Validate that the system performs as expected when concurrent users access the application and get the expected response time.
– This test is repeated with multiple users to get the response time and throughput.
– At the time of testing, the database should be realistic.
3- Stress Testing
This testing is done to pull the system far beyond its capabilities and see how it reacts. Contrary to load testing in which the maximum allowable load is generated, in stress testing, the load generated is more than what the system is expected to handle.
Stress Testing includes:
– Test on low memory or low disc space on clients or servers that reveals the defects which cannot be found under normal conditions.
– Multiple users perform the same transactions on the same data.
– Multiple clients connected to servers with different workloads.
– Reduce the Think Time to Zero to stress the servers to their maximum stress.
4- Volume Testing
When storage requirements and capabilities of the system are to be tested, volume testing is done. When a huge database size is encountered, the system’s performance and its ability to exchange data and information are tested in this case.
This nonfunctional testing includes:
– When the software is subject to large amounts of data, checks the limit where the software fails.
– Maximum database size is created and multiple clients query the database or create a larger report.
5- Failover Testing
this is fail-back testing. to test how well the redundancy mechanism works when the system encounters heavy load or unexpected failure. Failover testing is done in order to verify that in case of a system failure the system is capable enough to handle extra resources like servers. To prevent such a situation, backup testing plays a big role. Creating a backup system is what the process is about. If the backup is available, then it helps to get the system back.
6- Security Testing
Security testing is done to ensure that the application has no loopholes which could lead to any data loss or threats. it is test how well the system can preserve itself and the data it holds in a situation of malicious attacks. Security testing is one of the important aspects of nonfunctional testing and if not performed properly can lead to security threats.
7- Scalability Testing
When an application is tested for its ability to increase and scale upon any of its non-functionality requirements such as load, number of transactions, number of servers,
Scalability testing is done to verify if the application is capable enough to handle the increased traffic, number of transactions, data volume etc. The system should work as expected when the volume of data or change in the size of data is done.
8- Efficiency Testing
Efficiency testing is done to verify if the application works efficiently and the number of resources required, tools required, complexity, customer requirement, environment required, time, what kind of project it is are few points which would help to define how efficiently an application would work if all the considered parameters work as expected.