Process data model

Data that is saved for a process is represented internally as a data tree. Each node in the data tree represents a data item that is available to the process. The root node of the tree is named process_data. Below this node are all other data nodes. The following standard nodes are present for all processes:

create_time: The date and time when the process instance was created.

creator_id: The identification of the user who initiated the process instance.

id: The unique identifier for the process instance.

status: The life cycle status of the process instance.

update_time: The date and time when the process instance data last changed.

Any other nodes below process_data represent data stored in process variables that have been created for the process. The following graphic illustrates the data tree for a process that has three variables defined and named booleanvar, stringvar, and longvar.

Variables appear in alphabetical order in the data tree. The names of the standard nodes are displayed using italics.

Simple variable types, such as boolean and long, are represented by leaf nodes in the data tree. Some variable types, such as xfaForm and xml, have their own data schema and are represented by nodes that have children. The children nodes represent data that is organized according to the variable's schema.

Process data model

See also