Entries Tagged as 'Architecture '

Using Quality Attributes as a Means to Improve Acquisition Strategies

Acquisition , Architecture No Comments »

By Lisa Brownsword,
Senior Members of the Technical Staff

Lisa BrownswordAlthough software is increasingly important to the success of government programs, there is often little consideration given to its impact on early key program decisions. The Carnegie Mellon University Software Engineering Institute (SEI) is conducting a multi-phase research initiative aimed at answering the question: is the probability of a program’s success improved through deliberately producing a program acquisition strategy and software architecture that are mutually constrained and aligned? Moreover, can we develop a method that helps government program offices produce such alignment? This blog post, the third in a series on this multi-year research, describes our approach to determining how acquisition quality attributes can be expressed and used to facilitate alignment among the software architecture and acquisition strategy.

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The Latest Research from the SEI

Architecture , Cloud Computing , Insider Threat , System of Systems , Team Software Process (TSP) No Comments »

By Douglas C. Schmidt
Principal Researcher

Douglas C. SchmidtAs part of an ongoing effort to keep you informed about our latest work, I would like to let you know about some recently published SEI technical reports and notes. These reports highlight the latest work of SEI technologists in systems of systems integration from an architectural perspective, unintentional insider threat that derives from social engineering, identifying physical security gaps in international mail processing centers and similar facilities, countermeasures used by cloud service providers, the Team Software Process (TSP), and key automation and analysis techniques. This post includes a listing of each report, author(s), and links where the published reports can be accessed on the SEI website. 

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Security Pattern Assurance through Round-trip Engineering

Architecture No Comments »

By Rick Kazman
Senior Member of the Technical Staff
Software Solutions Division

Rick KazmanThe process of designing and analyzing software architectures is complex. Architectural design is a minimally constrained search through a vast multi-dimensional space of possibilities. The end result is that architects are seldom confident that they have done the job optimally, or even satisfactorily. Over the past two decades, practitioners and researchers have used architectural patterns to expedite sound software design. Architectural patterns are prepackaged chunks of design that provide proven structural solutions for achieving particular software system quality attributes, such as scalability or modifiability. While use of patterns has simplified the architectural design process somewhat, key challenges remain. This blog explores these challenges and our solutions for achieving system security qualities through use of patterns.

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Agile and Architecture Practices for Rapid Delivery

Agile , Architecture 1 Comment »

Examples From Real-World Projects
By Stephany Bellomo
Senior Member of the Technical Staff
Software Solutions Division

Stephany BellomoAgile projects with incremental development lifecycles are showing greater promise in enabling organizations to rapidly field software compared to waterfall projects. There is a lack of clarity, however, regarding the factors that constitute and contribute to success of Agile projects. A team of researchers from Carnegie Mellon University’s Software Engineering Institute, including Ipek Ozkaya, Robert Nord, and myself, interviewed project teams with incremental development lifecycles from five government and commercial organizations. This blog posting summarizes the findings from this study to understand key success and failure factors for rapid fielding on their projects.

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National Deployment of the Wireless Emergency Alerts System

Architecture , CERT , Handheld Devices No Comments »

By William Anderson
Senior Researcher
Software Solutions Division

William AndersonThe ubiquity of mobile devices provides new opportunities to warn people of emergencies and imminent threats using location-aware technologies. The Wireless Emergency Alerts (WEA) system, formerly known as the Commercial Mobile Alert Service (CMAS), is the newest addition to the Federal Emergency Management Agency (FEMA) Integrated Public Alert and Warning System (IPAWS), which allows authorities to broadcast emergency alerts to cell phone customers with WEA-enabled devices in an area affected by a disaster or a major emergency. This blog posting describes how the Software Engineering Institute's (SEI) work on architecture, integration, network security, and project management is assisting in implementing the WEA system, so it can handle a large number of alert originators and provide an effective nationwide wireless emergency warning system.

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