Summary IT213 Unit10.docx IT213 Unit 10 Assignment Purdue University Global IT213- Software Development Concepts In this paper, we will focus on the testing stage and its four levels. The four levels of testing are Unit testing, Integration testing, system

IT213 U IT213 Unit 10 Assignment Purdue University Global IT213- Software Development Concepts In this paper, we will focus on the testing stage and its four levels. The four levels of testing are Unit testing, Integration testing, system testing, acceptance testing. We will discuss each level in detail. Unit testing or Component testing is the level where individual units or components of a software are tested to ensure that these components function as intended. A unit is the smallest testable part of the software and it usually has one or more inputs with a single output. The unit can be as small as a single method that belongs to a base class or a child class in object-oriented programming. In procedural/structural programming the unit can be an individual program or function or procedure. Unit testing is usually performed by the developers themselves or sometimes an independent softw