What type of task can be used to evaluate conditions in Appian?

The ability to evaluate conditions in Appian is typically achieved using a script task. Script tasks are designed to perform calculations and evaluations based on the data available within the process, allowing for the execution of specific logic or functions.

In Appian, script tasks can run expressions that assess conditions, manipulate data, or even make decisions based on those evaluations. This functionality is essential when you need to determine the next steps in a process based on the outcomes of certain calculations or logical checks.

User input tasks involve human interaction, where users provide data, and they do not inherently evaluate conditions within the process. Service tasks are meant for integrating with external systems or performing automated actions but do not directly evaluate conditions on their own. End events signify the conclusion of a process and do not involve any evaluation of conditions.

Thus, since script tasks can execute code to check and evaluate the conditions, they effectively fulfill this requirement within Appian processes.