Workflow Framework: Tasks

updated 2 yrs ago

The LogicNets system allows you to add workflow functionality to applications you create using the Application Starter Portal Framework. This functionality supports the following:

Task creation
Role-based task actions
Task lists
Sequential and/or parallel workflows
Task locking
Persistent workflow data objects that can be passed between tasks

Workflows are modelled as logicnets like the one in the diagram below, but these logicnets are slightly different than non-workflow logicnets in that they contain task nodes.

Each task node represents a distinct step or unit of execution within the workflow, and the workflow steps from one task to the next based on the outcome of that task. Each task node has the following configuration options:

Field Name	Description/Use	Type/Options	Optional/Mandatory
Task label	This is the label of the task as shown in the logicnet.	Text	Optional
Task type	This is the type of task. Choose user if the task requires user interaction. Choose system if the system executes the task in the background using a process called the system task runner.	User \| System	Mandatory
Subject	This is the title of the task if it displays to users.	Text	Optional
Display	When this parameter is set to Yes the system assumes the task has a user interface and will render a top bar with navigation and action buttons. The system will also include a message area where validation errors display if necessary. If this parameter is set to No the system assumes the task is a processing task or has a custom user interface that implements the navigation bar and errors if necessary.	Yes \| No	Mandatory
Outputs	This is the outputs for the task. Each output has the following parameters: Value: This is the value of the output. Caption: This is the caption of the output value (only relevant for tasks with a UI). Applies to: This is the user role that is associated with the button. It is only relevant for tasks with a UI, and--when filled—the button is only visible to users with the specified role. Next status: This is the caption displayed on the button. Save: yes \| no. This sets whether the system should save the task. Validation: yes \| no. This determines if the system will step the task forward if there are validation errors. This is only relevant for tasks with a UI. Condition: This is the condition (f there is one) for enabling the output button on the navigation bar. This is only relevant for tasks with a UI.	Collection	Mandatory
Actions	This parameter is only applies when Display is set to "yes". These are the buttons the system will display on the top bar for triggering another logicnet. Each action has the following parameters: Caption: This is the caption of the action button. Applies to: This is the user role linked to the button. If this parameter is provided the button is only visible to users with the specified role. Call logicnet: This is the name of the logicnet to call when the button is clicked. Display: When set to "yes" the system will open the logicnet in a popup window. Parameters: These are the input parameters the system should send to the called logicnet. The system supports string interpolation, however, the interpolation happens at server side when the button is being rendered and not at the time the user clicks the button.	Collection	Optional
Task net	This is the logicnet the system will call when the task is executed.	Logicnet	Mandatory
Load net	This is the logicnet the system will call to load task data. If this is not specified the system will load task data from default task storage.	Logicnet	Optional
Save net	This is the logicnet the system will call to save task data. If this is not specified the system will use the default saver.	Logicnet	Optional
Pre-process net	This the logicnet the system will call before the start of the task; for example, to pre-process data.	Logicnet	Optional
Post-process net	This the logicnet the system will call after the task logicnet; for example, to perform post-processing actions.	Logicnet	Optional
Parameters	These are the input parameters for the task. The system supports string interpolation.	Text	Optional
Planned start	This is the date after which the system must start the task. It is only applicable for system tasks.	Date	Mandatory
Tags	This is the meta-data associated with the task. Each tag has the following parameters: Type: This is the key of a tag. One predefined key is "role" but you can enter any key. Value: If the key is set to "role" the value specifies the role(s) to which the task applies. The task-locking mechanism will only allow a user to open task if the user has one of the specified roles. If no role is specified any user can open the task. Value-type: This is the type of the value: value \| collection.	Collection	Optional

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