Discover the distinct characteristics and functions of Timer Event, XOR Gateway, Script Task, and AND Gateway nodes in Appian. Learn how each node handles incoming and outgoing paths, automation, and more.
Table of Contents
Question
Match each node to the correct description for the node.
Note: Each description will be used once. To change your responses, you may deselect your response by clicking the blank space at the top of the selection list.
Timer Event
- Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
- Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
- Can run automated activities.
- Can accept one incoming path and select one outgoing path.
XOR Gateway
- Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
- Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
- Can run automated activities.
- Can accept one incoming path and select one outgoing path.
Script Task
- Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
- Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
- Can run automated activities.
- Can accept one incoming path and select one outgoing path.
AND Gateway
- Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
- Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
- Can run automated activities.
- Can accept one incoming path and select one outgoing path.
Answer
Timer Event: Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
XOR Gateway: Can accept one incoming path and select one outgoing path.
Script Task: Can run automated activities.
AND Gateway: Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
Explanation
In Appian, each node type serves a specific purpose within a process model. Here’s a detailed breakdown of the four node types mentioned in the question:
Timer Event:
- Can be added to a flow or attached to a smart service to trigger an Exception Flow or an Escalation.
- Allows you to set a timer that, when triggered, can initiate an exception or escalation flow.
- Useful for implementing time-based actions or alerts within a process.
XOR Gateway:
- Can accept one incoming path and select one outgoing path.
- Acts as a decision point, allowing the process to take different paths based on a condition.
- Evaluates the condition and routes the process flow to the appropriate outgoing path.
Script Task:
- Can run automated activities.
- Allows you to execute custom scripts or code within the process.
- Enables automation of specific tasks or integration with external systems.
AND Gateway:
- Can accept multiple paths: when all paths arrive, all outgoing flows are executed at the same time.
- Serves as a synchronization point, waiting for all incoming paths to complete before proceeding.
- Allows parallel execution of multiple process branches and merges them back together.
By understanding the unique characteristics and capabilities of each node type, you can effectively design and implement process models in Appian. Timer Events handle time-based triggers, XOR Gateways enable conditional routing, Script Tasks automate custom actions, and AND Gateways synchronize parallel process branches.
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