What test design techniques do you work with?

Main test design techniques I work with:

• Equivalence Partitioning — dividing input data into equivalence classes to minimize the number of tests while maintaining coverage.
• Boundary Value Analysis — testing values at the edges of input ranges where errors often occur.
• Pairwise Testing — testing all possible pairs of parameter values to identify interactions.
• Cause-Effect Graphing — constructing a graph to identify logical relationships and generate tests.
• State Transition Testing — verifying transitions between system states.
• Exploratory Testing — a flexible approach involving studying the system and generating tests on the fly.

These techniques help create effective and structured tests covering different aspects of functionality.