
Our preliminary design solution is, admittedly, quite adventurous in scope. We would like to develop a smartphone application that allows users to tag physical spaces (through GPS) and make notes on them easily, and to share their tags with friends or all other application users if they would like to.
We plan to use Google Maps as the foundational layer, with our own software layered on top of it. The application does no require users to ever visit a website; all functionality should be available through the application itself. Because our survey results showed a diversity of preferences when it comes to creating, sharing, and searching out information on smartphones, we determined that in order to be successful, our application must be extremely flexible. Many of our smaller design decisions have been explained in the “Brainstorming” section of this paper, and we hope through extensive prototyping that we will be able to experiment with a variety of interface and functionality choices.
We imagine the application would work as follows:
The default setting would be “alert me” unless the user chooses to turn it off. After downloading the application, the user could search for tags or users. Once they have entered a preliminary search term, they can browse the results to find specific tags that interest them (see Appendix B), and browse each tag to see the type of alerts they would be receiving. They can then subscribe to any tags that interest them. Users should be able to customize alerts: whether the alert comes as a vibration or a beep, whether they receive only the most popular tags or tags from most popular users, or all of them, or whether they receive only tags from users they’ve subscribed to. They can also customize the distance from which they receive an alert, perhaps 3 meters, 7 meters, or 15 meters. The user can tag a place they are currently standing in, but they can also tag a place at long range, by locating it on the map (this would be where Google Earth comes in handy, so that users can be sure, at a distance, that they are tagging the right spot). As users walk around and receive alerts, they can rate the spot, make a comment on it, and decide whether they want to receive the same alert again.
While not all users of the system will need to contribute to the tagging, there will need to be a critical mass of active users to ensure that tags are granular, and that enough sites are tagged to interest users in staying active.
(Designed in conjunction with Evan McMurtry.)