Which variable type is used to store data used by a single node of a process model?

Which variable type is used to store data used by a single node of a process model?

• A. pv! variables
• B. Activity Class Parameters
• C. Rule Inputs
• D. Process Variables

Answer: (B)

Data used by a single node in an Appian process model is stored as Activity Class Parameters. These parameters are defined on the Activity Class and are provided to each occurrence of that activity. Because they are scoped to the specific activity instance, the data stays local to that node and isn’t shared across the entire process unless you pass it along explicitly. This per-node scope is what makes Activity Class Parameters the right choice for data that only a single node needs. Process variables, by contrast, hold state for the whole process and are accessible to multiple nodes, so they aren’t suitable for node-specific data. Rule inputs come from process or rule invocation contexts and aren’t designed to serve as per-node storage. For example, an approval node might use ACP like approver and dueDate, keeping that data confined to that node’s execution.

Data used by a single node in an Appian process model is stored as Activity Class Parameters. These parameters are defined on the Activity Class and are provided to each occurrence of that activity. Because they are scoped to the specific activity instance, the data stays local to that node and isn’t shared across the entire process unless you pass it along explicitly. This per-node scope is what makes Activity Class Parameters the right choice for data that only a single node needs.

Process variables, by contrast, hold state for the whole process and are accessible to multiple nodes, so they aren’t suitable for node-specific data. Rule inputs come from process or rule invocation contexts and aren’t designed to serve as per-node storage. For example, an approval node might use ACP like approver and dueDate, keeping that data confined to that node’s execution.