Types of States
Following states are distinguished:
- Compatible states are states in a state machine that do not conflict for any input values. Thus for every input, both states must have the same output, and both states must have the same successor (or unspecified successors), or both must not change. Compatible states are redundant, if occurring in the same state machine.
- Distinguishable states are states in a state machine that have at least one input sequence causing different output sequences - no matter which state is the initial state.
- Equivalent states are states in a state machine which, for every possible input sequence, the same output sequence will be produced - no matter which state is the initial state.
Read more about this topic: Program State
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