General Guidelines
Variables and Arguments
In general terms of parameters in WF4, there are two main concepts: Variables and Arguments. Variables are used to store data within a task and Arguments are used to pass data in/out of a task. The concept of „binding" parameters has been replaced with the usage of variables and arguments.
Variables are to be used in a task whenever the need to store data is limited to the current task and the output/input of the task is not used anywhere else (for example another task).
Arguments are to be used whenever the input parameters of an activity are given by the user using a web-based application, (for example when executing a task in User Portal) or if the output of an activity is to be returned and used outside of flowster Design Studio application. (for example User Portal).
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