The first step was to choose a departement. We pick the security one, because we thought that it was one of the most important. 

Then we listed several security problems we could think of in a city. This is the list we made :

• Street security
• House camera that warns you if there are intruders
• Video surveillance
• Smoke detectors for firemen
• Phones
• Wi-Fi
• Social network
• Confidentiality
• Doors/Windows
• Cloud
• Parking monitoring
• Emergency response
• Guns control (Xray)
• Sensors and cameras to analyze dense crowds for potential threats
• Video analytics to monitor surveillance camera footage in real time
• Patrol robots and drones for monitoring potentially unsafe areas
• Insect invasion
• Storms
• Forest fire
• Street fire
• Air pollution
• Crime
• Drugs Problems
• Flash flooding