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Three user tests were performed in order to investigate the effectiveness of our interface. One developer acted as both facilitator and observer for each test. We located users who we thought we be good targets for the application -- users who were interested in securely communicating with others, but not necessarily those who understood the technicalities of encrypted communication. One user test was performed using the application running on an Android phone, while the others we performed using the Android emulator.
We introduced our application briefly , and the by discussing our intent with an easy to use but secure communicator. We did not perform a demo hoping that the similarity to existing applications would be enough for them to get around. We asked each user to perform the following tasks:
- Log into the Application
- Add the Facilitator as a new Contact via Barcode
- Initiate a Conversation with the Facilitator
- Receive a Message from an Unknown Contact and Add that person as a new Contact
- Remove the newly added contact and all messages they sent
User Test | Critical Incident | Design Learnings/Possible Fixes |
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User 1 |
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User 2 |
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User 3 |
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