Page 141 - DCAP308_OBJECT_ORIENTED_ANALYSIS_AND_DESIGN

Unit 11: Domain Analysis

Notes
Figure 11.3: ATM – State for Account

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conception_domain_analysis.pdf
11.2.3 Finding Events

Find event that causes transition among states.
Consider those events that occurs within state but do not cause transition
You can regard event as do-activity

Example: Scientific paper for journal
Figure 11.4

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n_domain_analysis.pdf

Example: ATM: - close account, repeated incorrect PIN, Administrative action

11.2.4 Building State Diagram

Note state to which event applies.
Add transitions to show change in state caused by event.

!
Caution If a event has different effect in different state add a transition for each state

Task Make distinction between closed state and suspended state.

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