| CoreInterface | The core interface in the SASAPI framework |
| App | App is -the- static class for centralizing & storing core application instances, listeners, broadcasters, debuggers, objects, vars & constants |
| CoreObject | The core mixin object in the SASAPI framework |
| FWDepth | FrameWork Depth Manager to avoid collisions, uses negative depths for safety where appropriate |
| KeyFactory | Give flash runtime objects a unique ID |
