August 26, 2010

Defect driven Exploratory Testing

Defect driven exploratory testing is another formalized approach used for ET.
Defect Driven Exploratory Testing (DDET) is a goal-oriented approach focused on the critical areas identified on the Defect analysis study based on Procedural Testing results.

In Procedural testing, the tester executes readily available test cases, which are written based on the requirement specifications. Although the test cases are executed completely, defects were found in the software while doing exploratory testing by just wandering through the product blindly. Just exploring the product without sight was akin to groping in the dark and did not help the testers unearth all the hidden bugs in the software as they were not very sure about the areas that needed to be explored in the software. A reliable basis was needed for exploring the software. Thus Defect driven exploratory testing is an idea of exploring that part of the product based on the results obtained during procedural testing. After analyzing the defects found during the DDET process, it was found that these were the most critical bugs, which were camouflaged in the software and which if present could have made the software ‘Not fit for Use’.
There are some pre requisites for DDET:
  • In-depth knowledge of the product.
  • Procedural Testing has to be carried out.
  • Defect Analysis based on Scripted Tests.
Advantages of DDET:
  • Tester has clear clues on the areas to be explored.
  • Goal oriented approach , hence better results
o No wastage of time.

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