ISO is the reputed testing standard.

What is the ISO standard for software testing?

The purpose of the ISO/IEC/IEEE 29119 series of software testing standards is to define an internationally-agreed set of standards for software testing that can be used by any organization when performing any form of software testing.

Which is black box testing method?

Black box testing involves testing a system with no prior knowledge of its internal workings. A tester provides an input, and observes the output generated by the system under test. ... Black box testing is a powerful testing technique because it exercises a system end-to-end.