Architecture Styles

Intro

• It is a pattern of component types and their interactions.
• Define constraints: how things are allowed to interact.
• Architectural pattern is synonym for style.
• Defining features:
  • Component types: e.g data store, processes etc.
  • Component layout: e.g. which process is allowed to access data store.
  • Connectors: e.g how are they connected ? RPC, Data stream ?
  • Constraints: On components - e.g. data store cant modify itself, On connections - no P2P communication allowed.

Data Centred

• Characterised by the access/update of a central data store.
• E.g. Transactional DB, Blackboard, CASE Tools.