1. Recorded Information
2. Timeline
   1. 1945 V. Bush
      1. Problem = Information Explosion
         1. World Wide Web
      2. Solution = Memex
3. History
   1. Information Retrieval
   2. Relevance
      1. System
      2. Topical
      3. Cognitive
   3. Interaction
4. Traditions
   1. Library
   2. Documentation
   3. Computation
5. Subdivisions
   1. Information Analysis/Domain
   2. Retrieval Cluster/Applied
      1. User/Human-centered Approach
      2. System/Systems Approach
6. Approaches
   1. Cognitive
   2. Objective
7. Characteristics
   1. Information Society
   2. Information Technology
   3. Interdisciplinary
8. Information
   1. Signal/Message
   2. Phenomena
      1. Investigate
         1. Manifestation
         2. Behavior
         3. Effects
   3. Value
   4. Improved Beliefs
   5. Cognitive Processing/Understanding
9. Social Science
   1. Zin's Knowledge Map of Information Science
10. Research
    1. User Studies
    2. Historical Studies
    3. Studies of Terminology
    4. Indexing and Retrieval Studies
    5. Other IS Studies
11. Communication Chain
    1. Creation
    2. Dissemination
    3. Indexing and Retrieval
    4. Use
    5. Archiving or Disposal