Bind¶
Definition¶
<bind question_type="type" predicate="p">
The element defines a question that can be answered by the user, but will not be asked by the system.
| Attribute | Type | Description |
|---|---|---|
| question_type | string | Optional. Defaults to wh_question, but can be one of goal, wh_question, alt_question or yn_question. |
| predicate | string | Optional. Required if question_type is wh_question or yn_question. |
Parents¶
Children¶
Behaviour¶
The element defines a question that can be answered by the user, but will not be asked by the system, thereby `binding' that answer to the goal in question. This makes it possible to take into consideration optional and unrequested parameters.
This is only valid as long as the plan element is still in the plan. When executed, the plan element is removed from the plan. This means that the element should always be placed last in the plan, unless the developer wishes to remove the bind element during execution of the plan.
Examples¶
Binding a WH question about price range (e.g. in a travel booking application)¶
<bind type="wh_question" predicate="price-class"/>
Last update: December 4, 2020