About Variables

Variables are Containers to store your data. They help you to hold and transport your data from one node to another. 

In Appian We got Rule inputs , Local variables , Activity Class Parameters ,process variables.

Rule inputs and Local variables works in context of Interface.

Local Variables :  Local variables are a specific type of variable that are only available within the context of a particular expression and can only be accessed within the function that defines them.   https://docs.appian.com/suite/help/23.4/Local_Variables.html#overview

Rule Inputs :Just Like Global variables in java.  

Usage:

• pass data down and up interfaces
• pass data into and out of a process model
• pass inputs to expression rules

ACP's and Process variables we use them in context of Process Models.

ACP : These are like Local variables but context is Process Node . Only available within Particular node That we created. https://docs.appian.com/suite/help/23.4/Working_with_Data_in_Process.html#node-inputs--activity-class-parameters

Process Variables : Global variables but in context of Process.  https://docs.appian.com/suite/help/23.4/Working_with_Data_in_Process.html#process-variables

Thank you so much

Thank you so much