Most organizations, including universities, have acceptable computer/network use policies
(see https://infotech.wsu.edu/ITRoot/Policies/computeruse.html for an example).
Assume you work for a for-profit organization and are assigned by your boss to develop a policy statement regarding acceptable use of instant messaging. Develop the policy and make sure your policy differentiates between internal versus external use, work-related versus personal use, and so on.