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Executive Perspectives on CBS: NASA’s EOSDIS Core System

Executive Perspectives on CBS: NASA’s EOSDIS Core System. Mike Moore, ESDIS Project NASA Goddard Space Flight Center mike.moore@gsfc.nasa.gov 301-614-5123. System Background. EOSDIS Core System will manage unprecedented science data volumes (~ 9 PB) from 20 instruments on 9 spacecraft

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Executive Perspectives on CBS: NASA’s EOSDIS Core System

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  1. Executive Perspectives on CBS:NASA’s EOSDIS Core System Mike Moore, ESDIS Project NASA Goddard Space Flight Center mike.moore@gsfc.nasa.gov 301-614-5123

  2. System Background • EOSDIS Core System will manage unprecedented science data volumes (~ 9 PB) from 20 instruments on 9 spacecraft • System deployed at four geographically distributed, independent Data Centers • Large system (1.1M SLOC) with heavy dependence on COTS (~ 50 products integrated in system) • Initial development period was 60 months • System has been operational for 22 months

  3. Key COTS Issues • Familiar, accepted acquisition and lifecycle models do not accommodate CBS • No basis for estimating CBS lifecycle schedules and costs, especially long-term maintenance • Stakeholder understanding of COTS is based on limited COTS usage • COTS expertise can increase attrition rates • Developers like to build things • COTS upgrades cause continual system change • Hard to coordinate COTS and system upgrades

  4. Unsuccessful COTS Strategies • Mandating maximum use of COTS • Waterfall model for COTS-intensive systems, especially when pushing COTS performance envelopes • Bringing in the experts; they have agendas too • Over reliance on open systems standards to address COTS compatibility issues • Maintaining COTS source code • Adhering to high-end COTS solutions when simpler solutions will work

  5. Successful COTS Strategies • Use a more adaptive lifecycle model • Sponsor competing COTS vendors for mission critical areas • Use COTS wrappers to avoid lock-in • Require vendors execute customer-defined benchmarks as part of bid • Prototype use of new or competing products • Assess COTS replacements throughout lifecycle • Maintain active management relationships with vendors

  6. Center-wide Strategies • Site licenses for key infrastructure COTS • Sponsorship of niche products • Commercialization of NASA products • Tool workshops to enhance profitability of niche markets • Standardized interfaces for niche products to allow plug-and-play across vendors • Exploring Product Line development to promote longer-term markets • Exploring independent COTS certification

  7. Workshop Goals • Understand the available CBS experience base • Examine system acquisition and lifecycle models to realize potential CBS, Open Source and component reuse benefits • Discuss possible benefits of cross-agency COTS and component knowledge bases

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