Layer 1: General classification of systems
- Europe/American Homecomputer like C64 / Amiga / Atari
- asian Homecomputer like PC88 / PC98
- Consoles like NES / Playstation / Xbox
- Handhelds like Gameboy / Lynx / PSP
- Mobiles / Mobile Operating System like iPhone / Palm / Windows Mobile
- Tablets like iPad
- Operating Systems like DOS / Windows / Linux
- Arcade
- cross-platform environments like Flash / HTML / Z-Code
- DVD-Player-Games
Layer 2: concrete platform from every entry of level 1
Layer 3: concrete models from every entry of level 2
Examples for all 3 levels:
- Europe/American Homecomputer like C64 / Amiga / Atari
- Amiga
Amiga 500
Amiga 600
Amiga 1000
Amiga 1200
Amiga 2000
Amiga 4000
- Amiga
- Operating Systems like DOS / Windows / Linux
- Windows
- Windows 3.1
- Windows 95
- Windows 98
- Windows 98 SE
- Windows NT
- Windows 2000
- Windows