Ground Systems Architecture Workshop 1998 An NRO Vision for Ground Systems Architecture Brigadier General Howard J Mitchell Director Communications Systems Acquisition and Operations Agenda What We all Want Lessons From the Past Lessons From Today A Vision to Consider What We all Want Empowerment to Excel Freedom to do our Mission Wisdom to Learn from Past Mistakes Solutions for the Future Lessons from the Past Etruscans 1000BC 505BC Stovepipes don t work Lessons from the Past A Common Rigid Solution Doesn t Work Either Lessons from Today Experience Large core implementation is bad because when it breaks the system breaks and regression testing becomes expensive General DeKok GSAW 1997 Lesson 1 True because the system implemented was not structured to support change Lesson 2 We need to design large systems in a new way We need to support change and new technology Lessons from Today Experience COTS integration is non trivial Lesson 3 Architectural mismatches between COTS products can be a problem for reuse and interoperability Lesson 4 Standards are important but are not enough for interoperability Lesson 5 Need to leverage commercial success with componentbased systems using a common underlying architecture Lessons from Today Experience Reuse does not have the promised payoff Lesson 6 Reuse is the means not the end Lesson 7 Successful reuse requires a strategy Lesson 8 Reuse needs to be applied to leverage big ticket assets Lessons from Today Experience Systems have become increasingly complex They are consequently harder slower and more expensive to deploy Lesson 9 The organizational and acquisition processes we employ are not geared to meet that complexity and to reduce cycle time and cost Lesson 10 We build what we are organized to build What does this all mean Component based Systems Configurable Systems Implementation Diversity Sustainable Reuse Common Reference Architecture Program Controlled System Evolution Lower Acquisition Costs A common reference architecture is not AutoShave A Vision to Consider A Compromise Solution Buildable Reference Architecture Advanced Decision Support Commanding Orbit Analysis Mission Planning Domain Independent Services SV SV Status SV Status Status Commanding COTS Real time SV Simulation Common Services High Performance Support Services Notification Legacy GS Services Events COTS Orbit Analysis SV Status Specific Target Architectures to meet particular Mission Needs Maneuver Planning Challenges We Face The Right Domains Legacy Architectures Stakeholders Architectural Evolution Ownership of Domain and Product Line Architectures We Have Partners to mount the challenges FFRDCs e g SEI Aerospace Mitre Universities e g USC CMU Commercial Developers e g Raytheon Lockheed Martin HP Summary We need an approach that falls evenly between the Etruscan and Autoshave extremes We live in a constrained world with many relationships We need to build systems that support change and complexity We must cooperate to achieve interoperability and exploit COTS An underlying architecture is key Use of a common reference architecture that will support ground system product lines is a promising vision for the NRO Thank you
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