| DataManager | Data storage abstraction | 
| DescriptorHandler | Class performing a task | 
| FileManager | File management | 
| NsprSystemInformation | Class gathering system information NSPR Api | 
| Resource | Abstract the notion of Resource | 
| ScriptSystemInformation | Class gathering system information with scripts | 
| SystemInformation | Class to abstract the way we gather the system information | 
| TaskManager | Class managing a Task | 
| TimeManager | Class managing the time | 
 1.4.4
 1.4.4