task_handlers?

From contact method Mike's Email Contact Method
Item Project Model Proposal
Item version number 3
Is the task_handlers supposed to correspond to "assignee" in most issue tracking systems? If so, making in a group seems like it will be unwieldy, as users will have to create groups containing themselves. I would like to propose two alternatives:

1. Call it "assignee" and have it point to an Agent. This could be a GroupAgent for things that belong to an entire group. (Simple)

2. Remove the field, add a new relationship type called "TaskAssignment" with task and agent fields. Zero, one, or many agents can be assigned to a task. (Complicated)

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