An evaluation of frames

PROS:

• rich structure

• good integration (natural and efficient) of procedural and declarative knowledge (good cognitive adequacy)

• good level of encapsulation for making abstractions: knowledge is localized rather than distributed

• decomposability

- good modularization of the knowledge

• good computational efficiency if procedural attachment is exploited

CONS:

• their semantics can be difficult to understand (due to procedural attachments)

• possible problems with multiple inheritance

• choice of essential and accidental properties

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