during execution of the task items, the task has Failure Handlers and a Redesigner.
The task can also have a collection of suggestions that are also used during failure
recovery.
Task
Steps Constraints
Figure 6: A Task
For the moment a task can be considered as a kind of degenerate specialist. The
task items form a fixed plan with limited capabilities. As a consequence all of the plan
selection knowledge is missing from a task. A task is only concerned with
communicating with steps below. A task with its steps represents design knowledge
local to a specialist. It also is restricted to contributing to the design something with
only a few attribute ...
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