Evaluation Objective vs. subjective Matching representation to:

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Evaluation Objective vs. subjective Matching representation to: Metrics Formal Cognitive Matching representation to: Information domain Task of user

Areas of investigation Ontology of information domain Structure of domain Structure of document Ontology of document access tasks Review of evaluation techniques for document access (e.g. NL) Educational research

Dimensions of variability Expressiveness/effectiveness Mappings Static vs. dynamic Representation types Dimensions of difference Information types Selection/retrieval Focus Secondary notation

HAZOPS Hazard and Operability Studies Diagram Matches structure of domain Structures task Levels of abstraction/detail Suggests provision of (range of) representations to guide/support tasks