DFKI Research Report-92-14
by Markus A. Thies, Thomas Fehrle, Frank Berger
Intelligent User Support in Graphical User Interfaces:
- InCome: A System to Navigate through Interactions and Plans
- Plan-Based Graphical Help in Object-Oriented User Interfaces
- This paper presents a frontend to an intelligent help
system based on plans called InCome (Interaction Control Manager). It
visualizes user actions previously executed in a specific application
as a graph structure and enables the user to navigate through this
structure. A higher level of abstraction on performed user actions
shows the dialog history, the interaction context and reachable goals.
Finally, the user is able to act on the application via InCome by
performing undo mechanisms as well as specifying user goals infered
already by the help system.
- This paper describes the system PLUS, a plan-based help system for
applications offering an object-oriented user interface. Our plan
recognition process is based on a predefined static hierarchical plan base,
that is modelled using a goal plan language. This language is designed to
especially cope with the problems arising when plan recognition is
performed in a graphical user interface environment whose interaction is
based on a user-directed dialog by means of direct manipulation --
so-called Direct Manipulation User Interfaces. The plan hierarchy is
entered using the interactive graphics-oriented plan editor PlanEdit+. The
plan recognition module PlanRecognizer+ builds a dynamic plan base by
mapping user actions to plans stored in the static plan base. The dynamic
plan base contains hypotheses about tasks the user is pursuing at the
moment. These plan hypotheses serve as a basis to offer various kinds of
assistance to the user. A central component of our graphical help is the
module InCome+. InCome+ visualizes user actions previously executed in an
application as a graph structure and enables the user to navigate through
this structure. A higher level of abstraction on performed actions shows
the dialog history, the interaction context, and reachable goals. InCome+
offers special features like task-oriented undo und redo facilities and a
context-sensitive tutor. As a substantial extension of the graphical user
assistance, we integrate the presentation of animated help within PLUS.
Animation sequences are generated in the context of the tasks the user is
currently working on.
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