Currently AI Mentor Studio is focusing on 4 categories:

• Architecture
• Performance
• Security
• Maintenability

It would be great to add another one: Sustainability (for green IT). In this category we can measure many things: size/weight of app, size of pictures, size of JS and CSS files, number of API's call, number of external files added (JS, etc.), size/weight of screen (HTML/CSS, if it's possible because it's generated), weight of fonts (font awesome, and others) and icons, number of HTTP call, etc.

The idea is just to measure if it's possible to optimize and do better to consume less energy.

Here is an example of website to measure this: http://www.ecometer.org/

Companies are more and more attentive about that KPI.