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Conditional Interaction: Improving Use Case Notation for User Interface Design
  Larry Constantine
  Get/download .PDF FileApplication Note [#104]: 1999 |  Adobe .PDF File: about 610K.
  Abstract: This application note describes two refinements to essential use case models that make it easier to model a variety of real-world tasks. These improvements provide a simple notation for conditional actions and for partially ordered or unordered interactions between users and systems. The concept of "extends" in use case modeling for object-oriented software engineering is refined and clarified.
  Keywords: essential use cases, notation, interaction design, conditional interaction, partially ordered interaction, extensions, task modeling
  Application note [July 1999, rev. January 2002] published on the Web.
  Get/download .PDF FileApplication Note [#104]: 1999 |  Adobe .PDF File: about 610K.
  Related Documents: Structure and Style [#106]; Newsletter: Writing Use Cases, Multiple Users, Cluster Cases
 

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