ITPEC FE Subject A October 2025 Question 36
ITPEC FE Subject A October 2025 — Question 36 of 60
State Transition Test — verifies system behavior across designed combinations of events and internal states.
A state transition test checks whether a system correctly moves between states when specific events occur.
- •State transition diagram defines valid states and transitions
- •Tests verify that each event triggers the correct state change
- •Used for stateful systems (e.g., login flows, order processing)
Why not others:
- (a) — describes general black box testing; state transition testing does focus on internal states
- (c) — describes stateless systems; state transition testing is specifically for systems whose state changes with events
- (d) — mixes up techniques: data flow diagrams and decision tables are separate methods
Key rule: State transition testing = events + states + transitions. If the system changes state based on events, this is the method to use.
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