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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.
Preconditions: 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.
Subtasks: Click the "bulletin" button from any page; posting to bulletin: click the "add posting" button, edit information regarding the posting (i.e., description of item being advertised), click the "post to bulletin" button; viewing previous postings: scroll up and down page to see all postings, click on an individual posting title to see specific details
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.
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