We used our paper prototype to conduct usability testing with four target users. This study sought to evaluate the usability of our application LightHouse, using a low-fidelity paper prototype to test three basic features with potential users: the initial set up, a normal walk home, and an emergency encounter.  Observations from this study informed a series of improvements to our original design.

 

Participants:

We tested our prototype with four young women between the ages of 19 and 21.  All four participants regularly use their cell phones and frequently walk alone at night, both on and off campus.  

 

Methods:

For each participant, we conducted the usability test through pre-observation interviews, task completion and observation, and post-observation interviews. We also used  Rapid Iterative Testing and Evaluation (RITE) to address issues encountered by multiple test participants that hindered their ability to complete the task.

 

Findings:

By observing users completing our three key task scenarios, we came to several conclusions about user behavior. The most important things we found in our usability testing were that users:

• Do not read even small amounts of text

• Reflexively enter a security pin when given the option, even if they are not safe

• Value the ability to contact their friends and family and wish they were able to do so throughout the walk

• Are more likely to use the smartwatch extension than the button on the phone screen

• Value the ability to choose their route based on available data

 

These observations led us to make several changes to our mobile application, including re-prioritizing the desire to stay connected with friends and family, redesigning the panic button response, eliminating redundant setup screens, and leaning on visual cues instead of text throughout the design.

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