Here's a not too well-known instance of the use of $\varepsilon$ in mathematics: One somewhat well-known transformation for accelerating the convergence of a sequence is the Shanks transformation (after Daniel Shanks, who is probably more well-known for his number-theoretic contributions).
Thereâs no set way of creating a test plan, but there are common suggestions on what to include. Test plans donât need to be done a certain way, but if youâre new to writing test plans, the IEEE 829 is a good place to start. This standard for test plan documentation is used for software and system testing. It is a good âtemplateâ for writing your own test plan documents.
System testing is basically a part of software testing and test plan should always contain specific space for this testing. To test the system as a whole, requirements and expectations should be clear and the tester needs to understand real time usage of application too.