An array (bag) of strings that specify the administrator -defined roles this System plays in the managed environment. Examples ...

An array (bag) of strings that specify the administrator -defined roles this System plays in the managed environment. Examples might be 'Building 8 print server' or 'Boise user directories'. A single system may perform multiple roles. 
Note that instrumentation's view of a System's 'roles' is defined by instantiating a specific subclass of System and/ or by properties in a subclass. For example, a ComputerSystem's purpose is defined using the Dedicated and OtherDedicatedDescription properties.