Information System Service Layer

3 important questions on Information System Service Layer

What is addressed in the IS service modelling phase?

IS functionality: the way a system will interact with user
- GUI
- I/O detail level algorithms
- BPModelling level 3

What is the overall architecture with cross-cutting concerns

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What is the event handling layer?

Input services trigger events. Assumes there is a mechanism to dispatch events to right objects.

Event Handling Layer in between Input Services and Business Object Layer 

Grouping of events can happen for two reasons
- work organisation: invoke a serie of events rather than one
- consistency management

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