Test Design Techniques

What is a Testing Technique?
A testing technique is a thought process that helps us select a good set of tests from the total number of all possible tests for a given system. Each technique provides a set of rules or guidelines for the tester to follow in identifying test conditions and test cases.

In simply, a testing technique is a means of identifying good tests i.e. a good test case is four things: -
(i) Effective - has potential to find faults;
(ii) Exemplary- represents other test cases;
(iii) Resolvable - easy to maintain;
(iv) Economic - doesn’t cost much to use;

Terms related to Test Design Techniques:-

1. What is Test Design?
During test design the test cases and test data are created and specified.
Test Case:- A test case consists of a set of input values, execution preconditions, expected results and execution post-conditions, developed to cover certain test condition(s).
The purpose of a test design technique is to identify test conditions and test cases.

2. What is Test Analysis?
In the Test analysis, the test basis documentation is analyzed in order to determine what to test, i.e. to identify the test conditions.

3. What is Test Condition?
A test condition is defined as an item or event that could be verified by one or more test cases (e.g. a function, transaction, quality characteristic or structural element).