The context-driven software testing advocates testing based on the context of the project as opposed to go by books methodology testing or some fixed notion of best practices. Seven Basic Principle of Context driven testing is given as :
The value of any practice depends on its context.
There are good practices in context, but there are no best practices.
People, working together, are the most important part of any project's context.
Projects unfold over time in ways that are often not predictable.
The product is a solution. If the problem isn't solved, the product doesn't work.
Good software testing is a challenging intellectual process.
Only through judgement and skill, exercised cooperatively throughout the entire project, are we able to do the right things at the right times to effectively test our products.