Roles
Description	The roles (jobs, responsibilities) of people involved in the domain.
Possible Sub-Classes	Internal Roles, External Roles.
Examples	Design Engineer, Site Chemist, Sales Manager, Technical Director, Assembly Shop Supervisor, Hydrodynamicist, Knowledge Engineer.
Relationships	The possible relationships to other concepts are shown below:
Comments	These should be the role that a person performs (and not the name of the person) These are a very similar concept to People, and can be used in conjunction with named people (i.e. say who currently performs a role)
Example Relationships	Site Chemist – has contact – Production Manager Site Chemist – consults – Process Engineer Knowledge Engineer – part of – Epistemics Test Engineer – produces – Test Results Site Chemist – owns – Material Property Charts Design Engineer – uses – Stress Test Database Site Chemist – owns – Material Property Charts Stress Engineer – has expertise – Stress Analysis Knowledge Engineer – uses – PCPACK5 Stress Engineer – uses – MRI Scanner Chief Architect – located in – Main Office Estimator – performs – Estimate Material Costs Quality Officer – attends – Project Review Meetings Trainer – runs – Training Course Alan Smith – has role – Design Engineer