What all are test case design techniques you used and explain them

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Test case design techniques include boundary value analysis, equivalence partitioning, decision tables, state transition testing, and exploratory testing.

Boundary Value Analysis: Testing at the boundaries of input ranges to ensure system stability (e.g. testing a login form with minimum and maximum character limits).
Equivalence Partitioning: Dividing input data into classes to reduce the number of test cases needed (e.g. testing a calculator with positive and negative numbers).
Decision Tables: Mapping possible inputs to corresponding outputs to ensure all combinations are tested (e.g. testing a shipping system with different shipping options and destinations).
State Transition Testing: Testing different states of a system and transitions between states (e.g. testing a shopping cart with items added, removed, and checked out).
Exploratory Testing: Ad-hoc testing where testers explore the system without predefined test cases to uncover defects (e.g. testing a new feature without a detailed test plan).

What all are test case design techniques you used and explain them

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