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Software Quality Assurance and Testing Methodologies

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MEMO

Course Number / Course Title: CSC 415 / Software Engineering
Date of Submission: September 20, 2013

Software Quality Assurance and Testing Techniques

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This memo delves into unit testing, integration testing, and other aspects of software quality assurance.

Software quality assurance is essential for any business that provides products that are to be used by others. This memo serves as a documentation of software testing methodologies that support a recommendation for GF Software Solutions approach to SQA. Addressed are various components of the software development lifecycle and the different techniques that exist for their implementation. Unit tests focus on the verification of the smallest unit of software design, or the software module. Integration testing can be performed using a number of different methods including top-down, bottom-up, and big bang integration. Integration tests address problems or bugs that may occur when interfacing individual software components and building the complete system architecture. System tests are applied when the software is incorporated with other systems elements such as hardware, people, or information. Stress testing is a method of determining the stability of an application when tested beyond the bounds of normal operation. Each of the aforementioned steps is crucial to the software quality assurance procedure and is defined more thoroughly in the following sections.

A critical component of software quality assurance is unit testing. It is important to implement unit testing at an early stage software development so that bugs can be caught before they become problematic and difficult to fix. In some cases, unit tests are developed before the code is even written. The “units” that are tested in this approach are specific modules of code (functions or classes)

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