1 An Approach for Repeatable Sensor Web Construction WGISS – 25 Sanya, Hainan Island, China February 25, 2008

2 Drivers for Repeatable Construction Environment –Highly Collaborative –Multiple Projects and Nations –Varying Technologies Innovation –We are learning –Approaches are still developing –Developing Experience base for Best Practices Identify the Principles, Spread the knowledge –Others can see what worked – and what didnt –Increased efficiency in future efforts –Communicate to Executive Stakeholders Avoid Re-inventing the wheel –Increased efficiency –Identify composite services (and interfaces)

3 Approach Leverage Best Practices –Establish a Plan –Elaborate the Solution –Model the Solution –Produce Iteratively –Recognizing Patterns Communicate Openly –Artifacts are living and available –Regular Telecons Currently Leveraging this Approach –Flood Sensor Web –Wildfire Web

4 1) Establish a Plan Capture the Big Picture –Introduce the Project –Establish a Vision Statement Why do this project? Key Stakeholders Key Benefit Areas –Establish Framework of the Plan Anticipated Duration Key Phases –What capabilities will be present in each phase

5 2) Elaborate the Solution Sensor Application Case –Based on Use Case Modeling –Ensure that all parties agree on what is to be done –Using the language of the domain Includes –Summary –Actors –Preconditions –Resources Contributed –Triggers –Basic Flow –Alternate Flows –Post Conditions

6 Resources Contributed Data Modeling Services

7 Resources Contributed (Cond) Event Services Application/DSS Resources

8 Sensor Web Flow Describing Relationships –Applied GEOSS Architecture Components Observations, Information, Models, Forecasts, etc. Example

9 3) Model the solution Use Interaction Diagrams Shows how the pieces will work together Example Identify Components Identify Services Identify Standards Identify Patterns Identify Composite Services

10 Questions?