Component Based System Synthesis

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Component Based System Synthesis
Institute for Systems Research
John S. Baras
Electrical and Computer Engineering
Department, Computer Science Department, and the
Institute for Systems Research University of
Maryland College Park NSF ERC Annual
Meeting Breakout Panel on Strategies for
Integration Optimizing the Systems Focus in
ERCs November 17-18, 2005
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Motivating Examples

• Hybrid MANET and WSN

• System of Systems or
• Network of Networks
• Integrate network
• management, security,
• routing, MAC, networks

Component Based Networking

• Quantum communication,
• information, computing
• and control

• The integrating power of new physics
• From mechanics to silicon to qubits
• Entanglement
• Implementations NMR (spin),
• photonics, ion traps, batch chemistry
• control with laser feedback

Integrative Q-C3I
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Motivating Examples

• SYSTEMS BIOLOGYIntegrative approach in which
  scientists study pathways and networks will touch
  all areas of biology, including drug discovery
• Requires
• Quantitative models of properties of components
  and their interactions
• Computational methods to manage complexity

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CBSS or Plug and Play

• Component Based System Synthesis requires the
  following steps
• Collection of System Requirements
• Construct System Structure Model (what the system
  consists of)
• Construct System Behavior Model (what the system
  does)
• Map Behavior onto Structure and vice a versa
  (what parts of behavior will be performed by
  specific parts of structure)
• Allocate system requirements to Structure and
  Behavior
• Trade-Off Analysis
• Validation and Verification (i.e. Test Plan)
• Implementation technology must be specified at
  some point (c.f. silicon, dimension, MEMS, ?)
• Physics, chemistry, materials are central to
  implementation technology but influence all others

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Core CBSS Process
Iterate to Find a Feasible Solution / Change as
needed
Change structure/behavior model as needed
Define Requirements Effectiveness Measures
Specifications Perform Trade-Off Analysis
Create Sequential build Test Plan
Map behavior onto structure Allocate
Requirements
Create Behavior Model
Assess Available Information
Create Structure Model
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Strategies for Integration

• From a Reductionist Approach to an Integrative
  Approach
• Latest convert Biology and Medicine
• Integrative XXXX The challenge is to generate
  system behavior by integrating properties of the
  components
• Each ERC should have at least one project that
• Has a system as its focus
• Provably cuts across the ERC thrusts -- specific
  problems have been directed from the system
  project to each thrust and specific research
  results are needed from each thrust
• Specific system requirements lead to specific
  component requirements for each thrust
• Each ERC should try to have or influence some
  undergraduate courses with system level thinking
• My three favorite topics
• System Models for Synthesis (calculus, logic,
  physics)
• Signals and Measurements Representation and
  Processing
• Optimization, Trade-off analysis, Feedback