Based on the DSDM team model and also known as the "Alien Baby", I have summarised the different Agile Project roles and responsibilities which may be useful for those who want a better understanding of Agile or who if you're planning on sitting the Foundation or Practitioner exams.

1. Manages environment for
evolutionary development.
Manages high level Delivery
Plan & responsible for
business + technical
aspects
Project
Manager
Business
Sponsor
Technical
Coordinator
Business
Ambassador
Business
Visionary
Team
Leader
Solution
Developer
Solution
Tester
Shape &
Build solutions
Manage, Direct
& Coordinate project
ROLEROLE
Servant Leader
Ensure team functions and meets objectives
Plan and coordinate detailed delivery Interpret
business
requirements
&
translate
in into a
deployable
solution
Heavy input
into
requirements &
prioritisation
Involved in day-
to-day detail.
Decision maker
to ensure the
service is fit for
purpose.
Performs testing in accordance with
agreed strategy
SOLUTIONS DEVELOPMENT TEAM
PROJECT TEAM
Business
Analyst
Facilitate relationship between
business & Technical.
Ensures accurate needs
analysis and monitors day to day
activities
Technical authority &
Technical vision.
Ensures project meets
standards & advises on tech.
decisions + innovation
Provide clear vision and
strategic direction.
Interprets business needs
of sponsor. Ensure solution
enable business benefits.
Project Champion. Most
senior person responsible for
business case and budget.
Technical
Advisor
Business
Advisor
Specialist advice
(e.g.
legal/regulatory /
ops managament)
Agile /
DSDM
Coach
Workshop
facilitator
Independent