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Methods for Software Architecture
The SEI has a range of proven methods and practices that can help organizations use software architecture to build and evolve systems that satisfy their business and mission goals. These methods and practices, which are applied at different stages of the development lifecycle, have evolved with the advent of Agile development approaches.
- Capture architecturally significant requirements by analyzing the business drivers, system context, and factors that system stakeholders deem critical to success. We use two methods to identify important nonfunctional quality attributes of the system (e.g., performance, dependability, security, safety) and clarify system requirements: the Quality Attribute Workshop and the Mission Thread Workshop.
- Design an architecture by developing architectural structures and coordination strategies that satisfy requirements. Our Attribute-Driven Design method helps organizations iteratively design effective architectures.
- Evaluate the architecture by determining its ability to support the quality attributes that meet an organization's business and mission goals. Our Architecture Tradeoff Analysis Method (ATAM) and incremental design-review practices help organizations gain early and ongoing insight into their software architectures.
- Document the architecture in sufficient detail and in an easily accessible form to facilitate communication with developers and other stakeholders and to support analysis. Our Views and Beyond approach captures multiple architecture views, each addressing the concerns of particular stakeholders. The SEI also helped develop the Architecture Analysis and Design Language (AADL), a domain-specific architecture modeling language used for safety-critical systems, and the Open Source AADL Tool Environment (OSATE). AADL and OSATE are used to analyze the performance, security, and safety of real-time systems.
How do you know if a software architecture is deficient or at risk relative to its target system qualities?
The answer is to conduct an evaluation of it. A formal software architecture evaluation should be a standard part of the architecture-based software development lifecycle. Architecture evaluation is a cost-effective way of mitigating the substantial risks associated with this highly important artifact.
The achievement of a software system's quality attributes depends much more on the software architecture than on code-related issues such as language choice, fine-grained design, algorithms, data structures, testing, and so forth. Most complex software systems are required to be modifiable and have good performance. They may also need to be secure, interoperable, portable, and reliable.
But for any particular system, what precisely do these quality attributes—modifiability, security, performance, reliability—mean? Can a system be analyzed to determine these desired qualities? How soon can such an analysis occur? What happens when these quality attributes are in conflict with each other? How can the tradeoffs be examined, analyzed, and captured?
Our tools and methods can be used alone or in combination to obtain early and continuous benefits to any software development project.
The SEI Architecture Technology User Network (SATURN) Conference
SATURN is the leading conference for software architecture practitioners who look beyond the details of today’s technologies to the underlying trends, techniques, and principles that underpin lasting success in our fast-moving field. SATURN attracts attendees from many domains and technical communities who share interests in both practice and research. This unique mix makes it the best place to learn, exchange ideas, and find collaborators at the leading edge of modern software architecture practice.
The 16th SATURN Conference will be held in Orlando, Florida, on May 11–14, 2020.
Related Courses and Credentials
Based on decades of experience architecting software-reliant systems and supported by four widely acclaimed books, our software architecture training equips software professionals with state-of-the-art practices, so they can efficiently design software-reliant systems that meet their intended business and quality goals.
Learn more about SEI Certificates in software architecture:
Software Design Document
We also offer many courses on topics related to software architecture, from big data architectures to microservices, from documenting architectures to analyzing them, and from designing systems to managing their technical debt. Learn more about SEI courses.