Observations on Common Requirements

• No surprises:
  • Accuracy*, Scalability*, Profiling*, Relevance Ranking
    • Reflects need for efficiency in handling mushrooming of information
  • Security*
    • need to provide classified info to trans- or intra-firewall customers, or just concerns about unauthorized access
  • Web Access*, flexible Query Formulation*, Thesaurus*, API*
    • affects end-user usability
  • Surprises: (did not emerge as common requirement)
    • NL Query, Machine-Aided Indexing
  • Other:
    • Document Formats (Multimedia, SGML), Integration with Structured DBs
    • Browser, Visualization Tools, Passage-Level retrieval

* => high priority for some agencies

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