An Architecture for Extensibility

• shared internal representation always requires reprogramming of method
• micro-level coupling requires knowledge of method/system internals
• allow method to make choice about internal replication of data

 

• use loose macro-level coupling to allow use of existing software
• provide well-defined and open API for data access and result communication (data import or direct readthrough to DBMS)

special provisions need to made to allow uniform task and result management!

 

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