Christian Diaz

Christian Diaz

First Responders

About the Project

A mobile app for first responders, so they can see what’s going on in an emergency call 




To comply with my non-disclosure agreement, I have omitted and obfuscated confidential information in this case study. The information in this case study is my own and does not necessarily reflect the views of iTexico

The idea

The idea was to create a product that would be used by first reponders, so they know what’s happening in an emergency call. This included the ability to respond to a call, set statuses depending on their location, and see the map and information of the emergency situation.


The User Experience

It was very important to define a very quick and easy User Experience for the responders, so I proposed a custom UI for both platforms (iOS and Android). The most important CTA is the “Respond” button, which is useful for the user to set their status and to know in which status he currently is. The information of the call was divided into 4 different tabs for quick access:

  • Info
  • Map
  • Activity
  • Chat

This four tabs keep the information organized and the user can acces quickly, by just swiping or tapping on it.

Night mode for night calls

One of the features that I implemented for this product was the Night Mode. This was proposed for night calls, but has something different from the “night modes” of other apps: this only shows the content in a monochrome theme, using black and red colors to avoid hurting the eyes of the responders.

According to our client, this color palette was something that they are used to see in other equipment, so it was going to be a really helpful feature for them.


Pixel Perfect Design

The final UI design was as clean as possible, because I used color code and iconography that varies depending on the nature of the emergency call an its status.

As an added value, I proposed to the client to use a dark theme and let the responders decide which one they like the most, and he loved the idea, so they’re able to select between light and dark themes for better readability.