Team Roles
This is a high-level outline of the relationship among the members of the project team, specifically in the context of the User Experience Practice (UxP). Both the roles and the job titles are approximate, but you'll probably recognize most of them.
Working together
Marketing
Product Manager
Defines "what" features the product containsSubject matter expertise, deliverables
Client
Defines needs, product criteria and tasks to be performed from the client and customer perspective
Customer needs, Profiles, Personas, workflow
Market Specialist
Determines and maintains product/service perspective within the defined market segmentMarket expertise
Project Development Manager
Organizes, plans, controls and leads Development Team in rendering the product
Project Plan, Deadlines
Business Analyst
Defines "what" the product accomplishes and represents the business stakeholder perspective.
Business Requirements, Use Cases, Permissions
Interaction Design Architect
Defines the look-and-feel "how" of the product design and represents the "outside-in" perspective.
Functional & Design Specifications, Stylesheets, Templates
Technical Architect
Defines the technical "how" of the product design and represents the "inside-out" perspective.
Technical & System Specifications
Quality Assurance Manager
Plans, executes and controls all product quality assurance activities
Testing
Systems Integration & Configuration Manager
Oversees product integration and changes over the development cycle
Change Management
Customer Support
Outreach to end-users with relevant training, documentation, packaging and implementation
Helpdesk, Roll-out