noun
original activity identifier
Computing term for a unique identifier assigned to the first activity in a process or workflow.
最初のアクティビティ識別子は、ワークフローエンジンによって自動的に割り当てられます。
The original activity identifier is automatically assigned by the workflow engine.
Compound of 最初の (first) + アクティビティ (activity) + 識別子 (identifier). A technical term likely coined in software or business process contexts.