QA Outsourcing As A Way to Determine Categories for Test Design Techniques
Qa outsourcing is considered to be a reliable and cost-effective way to ensure desirable quality of developed software products within deadlines.
The goal of test design techniques is to specify test conditions and test cases. Traditionally, dynamic testing techniques are divided into two categories known as black box test design methodology and white box test design methodology. The former refers to specification-based / experience-based test design techniques designed to determine and select test conditions or test cases (both functional and non-functional ones) for a component or a whole system based on reviewing test basis and experience of developers, testers and users without bothering about internal workings of the item under test.
The latter, or white box analysis, (also called as structural or structure based testing technique) focuses on investigating internal workings or structures of a component or system.
Both these methods can be combined with experience-based testing technique in order to select the test object based on the experience of developers, testers and users. Some methods can fall into a certain category, while the others can belong to several categories.
According to such a scheme, we can state that specification or experience based tests are referred to as black box test design methods, and structure-based tests are referred to as white box test design methods correspondingly. Besides, here you can include also experience-based test techniques.
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Common characteristics of specification-based approaches to testing:
- To describe the tasks that need to be performed, software products or their components it is common to use both formal and informal test design patterns
- As a rule, test cases are written based on these patterns
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Common characteristics of structure-based approaches to testing:
- Test cases are derived from software design description
- Determine to what extent the code is covered with a set of tests cases available
Common characteristics of experience-based approaches to testing:
- Human knowledge and experience are used to determine test cases
- Knowledge that testers, developers and users and all other parties involved have on the product, its utilization and environment is a main source of information
- Knowledge of all possible defects is another source of information