1. ATAM
(An Architecture Tradeoff Analysis Method)
1
Dr. Himanshu Hora
SRMS College of Engineering & Technology, Bareilly

2. An architecture Tradeoff Analysis Method
 ATAM is designed to elicit the business goals for the
system as well as for the architecture.
 ATAM is so named because it reveals how well an
architecture satisfies particular quality goals and it
provides insight into how quality goals interact-that
is, how they tradeoff.
ATAM is a comprehensive way to evaluate a
software architecture.

3. Participants in ATAM
 The evaluation team.
 Project decision makers.
 Architecture stakeholders.

4. Evaluation team includes:-
• Team leader
• Evaluation leader
• Scenario scribe
• Proceedings scribe
• Timekeeper
• Process observer
• Process enforcer
• Questioner

5. Stakeholders include:-
 developers, testers.
 users,
 builders of systems interacting with this one

6. Outputs of ATAM
 A concise presentation of the architecture.
 Articulation of business goals.
 Quality requirement in terms of collection of
scenarios.
 Mapping of architectural decisions to quality
requirements.
 A set of identified sensitivity and tradeoff points.
 A set of risks and non risks.
 A set of risk themes.

7. Conceptual flow of ATAM

8. Phases of the ATAM

9. Steps of the Evaluation Phase
• Present the ATAM
• Present Business drivers
• Present Architecture
• Identify architectural approaches
• Generate quality attribute utility tree
• Analyze architectural approaches
• Brainstorm and prioritize scenarios
• Analyze architectural approaches
• Present results

10. ThankYou
Dr. Himanshu Hora
SRMS College of Engineering & Technology, Bareilly