1. Editorial Intelligent Help Systems for UNIX: Natural Language Dialogue

   • Stephen J. Hegner
   • Paul Mc Kevitt
   • Robert Wilensky

   Editorial Introduction Pages: 277 - 281

2. Planning Intelligent Responses in a Natural Language System

   • David N. Chin

   OriginalPaper Pages: 283 - 331

3. Strategies for Expressing Concise, Helpful Answers

   • David N. Chin

   OriginalPaper Pages: 333 - 350

4. Evaluating Plan Recognition Systems: Three Properties of a Good Explanation

   • James Mayfield

   OriginalPaper Pages: 351 - 376

5. Representing UNIX Domain Metaphors

   • James H. Martin

   OriginalPaper Pages: 377 - 401

6. Using Justification Patterns to Advise Novice UNIX Users

   • Alex Quilici

   OriginalPaper Pages: 403 - 420