Some weeks ago people were trying to analyse our data and we figure out that we don't have categories.
TW Radar's has 4 categories: Techniques, Tools, Platforms, Languages & Frameworks.
Since we already use some categories (Technique, Tools, Language, Framework) at the knowledge map spreadsheet, I kept them and I also added the last one (Platform).
So, our categories are Technique, Tools, Language, Framework, Platform
The system will continue to work with current data.
The category will be required when editing a technology or when adding a new one.
jeanpimentel
commented
4 years ago 
Some weeks ago people were trying to analyse our data and we figure out that we don't have categories.
TW Radar's has 4 categories: Techniques, Tools, Platforms, Languages & Frameworks.
Since we already use some categories (Technique, Tools, Language, Framework) at the knowledge map spreadsheet, I kept them and I also added the last one (Platform). So, our categories are Technique, Tools, Language, Framework, Platform
We can think about a migration later, if needed.