Many computer input procedures are most effectively handled by presenting a user with a series of simple forms that each require only one or a few questions to be answered. After submitting a form, a user receives with another simple form (with more questions) that may depend on previous answers. At any point, users can backtrack to review, or change, previous answers.

Process Commander can support such interactions with screen flows, a flow rule with specific settings.

Three runtime presentations are available to allow users to navigate within a screen flow execution at runtime:

• Completed tasks (that are designated as entry points) appear as blue rectangles in a breadcrumbs control. A user selects a rectangle to return to that task.
• Tabs for both completed and future tasks (that are marked as entry points) appear at the top of the action area. Completed tasks contain with a check mark.
• No breadcrumbs control or tabs appear. A user can return to a completed task that is marked as an entry point when the  <<Back   button appears.

Examples

To see and interact with an example flow that uses the breadcrumbs control, select Application > Import > Rule from File.

To see and interact with the tabbed presentation, select View > Rules > Find by a Custom Field.

The standard flow rule PegaSample-CustomerRequest.CustomerFeedback provides another screen flow example. For example, these flow actions appear in one sequence of use of this rule:

Second:

Third:

Notes

To make a screen flow, create a new flow rule and select ScreenFlow in the Template field.

A screen flow rule cannot be a starter flow rule. Use a regular flow to create the work object. Then call the screen flow as a subflow.

The standard harness rule Work-.PerformScreenFlow is by default used to present the assignments in a screen flow rule. You can override this rule; the standard harness rules Work-.TabbedScreenFlow and Work-.TreeNavigation provide alternative presentations.

A screen flow rule must have at least one task marked as entry point. Typically, screen flow rules have multiple tasks marked as entry points; these are places in the flow that a user can return to using the  Back   button.

A screen flow can operate on a temporary work object, one that is never saved to the database.

	entry point, starter flow rule, temporary work object
	About Flow Rules Flow rules — Visio Editing — Screen Flows

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