Decision Tables

Decision Table is a Black Box Testing technique.It deals with different combination of inputs.

It is generally used to represent complex business rules which otherwise would be difficult to  represent in other techniques like Equivalence Partitioning and Boundary Value Analysis.

Decision Tables are generally used when combination of input conditions and output is a Boolean value.

It is also called as Cause Effect Table.

The Decision Table consists of two parameters:

1. Conditions(Inputs)

2. Actions(Output).

T - Correct Username/Password.
F - Incorrectusername/Password
E - Error Message Dialog box.
L - Successful Login.

Conditions	Rule 1	Rule 2	Rule 3	Rule 4
Username	F	F	T	T
Password	F	T	F	T
Output	E	E	E	L