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Means of communication. This user mainly communicates with friends and acquaintances via text messaging or email. He is not a huge fan of other social media outlets, but "would use something that's a completely new service, or if I was given some sort of incentive to sign up."
Travel plans. John generally makes travel plans independently (i.e., without consulting friends) or with the aid of his parents. He says, "I wouldn't go out of my way to find someone else who was going to the same place, but if I did know of anyone who was--either specifically or through a mutual friend--then I would try to coordinate our travel plans." John is not aware of his friends' summer plans, though he and several of his friends are still in the process of making them.
Information security. Internet security is something that John values; he shares his personal details (phone number, home address, etc.) with only his close friends. He wouldn't mind sharing some broader personal information, such as his email address or general summer plans, with the general MIT community.
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4. Advertising / Bulletin
Goal: On the bulletin page, users can advertise within the group for specific needs (i.e., "Roommate wanted"). This could also be a place where users make day-to-day plans with other group members.
Description: The user would need to know specific details regarding what he/she is advertising or looking for. This task could be performed often (even multiple times in one session) and by many users, so efficiency and easy learnability are essential.
Exceptions: As with many other operations, the user could enter incorrect information, so an undo/edit operation would be necessary. Another point of confusion could arise when a user posts an advertisement on the bulletin that is claimed by another user soon thereafter, but if the advertisement is not taken down, then other users may still think that the item is available.
5. Profile to Publish Information
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