Entries Tagged as 'Architecture '

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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Ultimate Architecture Enforcement: Prevent Code Violations at Code-Commit Time

Architecture No Comments »

By Paulo Merson,
Visiting Scientist
Research, Technology, & System Solutions

Paulo Merson Occasionally this blog will highlight different posts from the SEI blogosphere. Today’s post by Paulo Merson, a senior member of the technical staff in the SEI’s Research, Technology, and System Solutions Program, is from the SATURN Network blog. This post explores Merson’s experience using Checkstyle and pre-commit hooks on Subversion to verify the conformance between code and architecture.

 

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Reflections on 20 Years of Architecture: A Presentation by Douglas C. Schmidt

Architecture , Reflections on Software Architecture No Comments »

By Bill Pollak
Transition Manager
Research Technology & System Solutions

Bill PollakLast week, we presented the first posting in a series from a panel at SATURN 2012 titled "Reflections on 20 Years of Software Architecture." In her remarks on the panel summarizing the evolution of software architecture work at the SEI, Linda Northrop, director of the SEI's Research, Technology, and System Solutions (RTSS) Program, referred to the steady growth in system scale and complexity over the past two decades and the increased awareness of architecture as a primary means for achieving desired quality attributes, such as performance, reliability, evolvability, and security.

It’s undeniable that the field of software architecture has grown during the past 20 years. In 2010, CNN/Money Magazine identified "software architect" as the most desirable job in the U.S. Since 2004, the SEI has trained people from more than 900 organizations in the principles and practices of software architecture, and more than 1,800 people have earned the SEI Software Architecture Professional certificate. It is widely recognized today that architecture serves as the blueprint for both the system and the project developing it, defining the work assignments that must be performed by design and implementation teams. Architecture is the primary purveyor of system quality attributes which are hard to achieve without a unifying architecture; it’s also the conceptual glue that holds every phase of projects together for their many stakeholders.

This blog posting—the second in a series—provides a lightly edited transcription of a presentation by Douglas C. Schmidt, former chief technology officer of the SEI and currently a professor of computer science at Vanderbilt University, who discussed advances in software architecture practice for distributed real-time embedded systems during the past two decades.

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Reflections on 20 Years of Software Architecture: A Presentation by Linda Northrop

Architecture , Architecture Documentation , Architecture Tradeoff Analysis Method (ATAM) , Quality Attribute Workshop , Reflections on Software Architecture , Ultra Large Scale Systems 4 Comments »

By Bill Pollak,
Transition Manager
Research, Technology, & System Solutions

Bill PollakA search on the term "software architecture" on the web as it existed in 1992 yielded 88,700 results. In May, during a panel providing a 20-year retrospective on software architecture hosted at the SEI Architecture Technology User Network (SATURN) conference, moderator Rick Kazman noted that on the day of the panel discussion—May 9, 2012— that same search yielded 2,380,000 results. This 30-fold increase stems from various factors, including the steady growth in system complexity, the increased awareness of the importance of software architecture on system quality attributes, and the quality and impact of efforts by the SEI and other groups conducting research and transition activities on software architecture. This blog posting—the first in a series—provides a lightly edited transcription of the presentation of the first panelist, Linda Northrop, director of the SEI’s Research, Technology, & System Solutions (RTSS) Program at the SEI, who provided an overview of the evolution of software architecture work at the SEI during the past twenty years.

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SEI Contributes to a National Supercomputing Initiative

Architecture , CMMI No Comments »

By Kurt Wallnau
Senior Member of the Technical Staff
Research, Technology, and System Solutions and CERT Science of Cyber-Security

Kurt WallnauFor more than 10 years, scientists, researchers, and engineers used the TeraGrid supercomputer network funded by the National Science Foundation (NSF) to conduct advanced computational science. The SEI has joined a partnership of 17 organizations and helped develop the successor to the TeraGrid called the Extreme Science and Engineering Discovery Environment (XSEDE). This posting, which is the first in a multi-part series, describes our work on XSEDE that allows researchers open access—directly from their desktops—to the suite of advanced computational tools and digital resources and services provided via XSEDE. This series is not so much concerned with supercomputers and supercomputing middleware, but rather with the nature of software engineering practice at the scale of socio-technical ecosystem.

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