1. Lecture on Black Box Testing

2. Black Box Testing
Focuses in the functional requirements of the program
It is not an alternative to white-box techniques
It is a complementary approach
It uncovers a different class of errors
Behavioral Testing

3. Black Box Testing Attempts to find errors in the following categories:
Incorrect or missing functions
Interface errors
Errors in data structures
Errors in external database
Behavior or performance errors
Initialization and termination errors

4. Performed early in the testing process
Control Structures
Information domain
Applied during later stages of testing

5. Black Box Testing How is performance tested?
How is functional validity tested ?
What classes of input makes good cases?
Is the system sensitive to certain input values?
What data rates and volumes can the system tolerate?
How are the boundaries of data class isolated?
What effect will specific combinations on data have on system operation?

6. Black Box Testing Graph-based testing methods Equivalence partitioning
Boundary Value Analysis
Comparison testing
Orthogonal Array Testing