Best Practices in Geospatial SOA

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Best Practices in Geospatial SOA NSDI Cooperative Agreements Program (CAP) 2008 Best Practices in Geospatial Service Oriented Architecture (SOA) Project Contacts: Neil Devadasan, ndevadas@iupui.edu Jeff Ehman, jeffe@imagemattersllc.com Jeff Harrison, jharrison@cubewerx.com Topics • Introduction • What is SOA? Some Common Definitions • Defining Requirements and Processes • Designing and Deploying SOA • Questions Introduction • For the US Federal Government’s Geospatial Line of Business (LoB) effective design and deployment of Service Oriented Architecture (SOA) using Web Services will determine the success of shared access to geospatial data and applications. Maps and location-aware technology Users Governance Citizens Geospatial Web Services... Services Oriented Architecture (SOA) Geospatial Assets Federal Data Providers CAP 2008 Category 2 Projects Government and industry leaders design, deploy, and document reusable geospatial services and applications using SOA. • Solutions satisfy multi-agency requirements by modeling business processes & related data and service components. • Documents best practices to educate federal agencies on design, implementation, and application of government-wide services for Geospatial LoB. • Participants Image Matters and EPA • The Polis Center, Indiana University, USGS and NWS • CubeWerx and US Army Corps of Engineers (with support from The Carbon Project) • Users Governance Citizens Geospatial Web Services... What’s the best way to Services Oriented deploy SOA for our (SOA) Architecture Geo-Assets? Geospatial Assets Data Providers Example of the Challenge • Quick look at interagency processes enabled by geospatial SOA • For example, regulatory permitting that requires data from US Army Corps of Engineers, EPA, USGS and others… EPA & COE Managers EPA Analysts Governance Geospatial Web Services... Services Oriented Architecture (SOA) Geospatial Assets USGS NHD WFS FWS NWI WFS USGS Contextual Layers WMS What is SOA? • SOA is software architecture oriented toward Services • Service-oriented architecture (SOA) describes a category of composite applications composed of service provider and service consumer components. • SOA segregates business logic and offers location transparency for the service providers and consumers. • The SOA approach lets you replace or upgrade individual components in the application without affecting other components or the process as a whole. Common Definitions 1. metadata describing the operations and geographic information available at a server [ISO 19128 draft] Developing geoSOA Elicit Requirements Monitor and Manage Model Business Process Design Test and Deploy Integrate and Build Defining Requirements and Processes Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers NSDI Framework Data/ Service Provider User User Registry Data User Provider Agent 2. Discover User 1. Publish Provider User 3. Access Web Application Data and Services User User User Data/ Service Provider CONOPs Use Cases Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Concept of Operations (CONOPs) Use Cases Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Concept of Operations (CONOPs) Geospatial Infrastructure 1 Flood forecast are issued 2 Geo-Spatial Flood Maps are Generated 3 Building and Property Losses are Generated 4 Socio-Demographic Statistics are Generated USGS Water Data Online stream gauges Flood planner Emergency Responder Socio-Demographic Statistics Building and Property Losses Flood Forecast Geo-Spatial Flood Maps Concerned Citizen Local Government Data Data/ ServiceAssessment, Building Property Provider Socio-Demographics DEM Meteorologist Hydrologist Use Cases Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Concept of Operations (CONOPs) Geospatial Infrastructure NSDI Framework 1 - Authentication 2 - Single Sign-On 3 - Access Control Data/ Service Provider User User Registry Data User Provider Agent 2. Discover User 3. Web ApplicationAccess User 1. Publish Provider Data and Services User User User Data/ Service Provider Other SDI Use Cases Security Manager Manage Users Access by Geography Manage Roles Access by Feature Manage Credentials Manage Groups USACE Data Provider NSDI Data Provider Portal Provider Manage Access Control Rules Authorize Users Deploy Data Access by Role Access by Operation Type NSDI End User ‘Jeff’ Update by Operation Type Update by Feature Update by Role USACE End User ‘Keith’ Designing and Deploying SOA Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Architecture W eb Browser Javascri pt Geo-Anal ysi s Appl i cat i on G-A Cl i en t Java G-A Se rve r G-A W PS NW I W FS (wet l a nds) NHD W FS (st reams) Sequence Diagrams User Steps 1. Zoom to AOI 2. Select NWI polys 3. Initiate WPS and name results set 4. View/Add/Save metadata 5. List processed features 6. Examine map 7. Add contextual layers Web Services in Development Service Description National Wetlands Inventory – Web Feature Service Serves FWS wetland polygons through OGC-compliant WFS; supports Filter Encoding specification to constrain queries Intersection GeoAnalysis – Web Processing Service Find geometric intersection of features from two different sets of vector geometries accessed via WFS Proximity GeoAnalysis Finds distances between closest locations – Web Processing of features from two different sets of Service vector geometries accessed via WFS Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers Designing a Geospatial SOA • A SOA solution will provide a very cost effective solution • SOA provides a platform to perform complex business processes • Without SOA developing a process to cater all partners was unattainable • SOA is inherently distributed with multiple services • Service applications are heterogeneous • It provides synchronous and asynchronous access to PI • Complexity of service orchestration is handled by • Accepted solution is BPEL • Acts like the “middle man” or the “centralized web service” • BPEL keeps process state in schema • BPEL coordinates synchronous and asynchronous communication • BPEL performs Receive, Assign, Invoke and Reply activities • BPEL processes are deployed on ESB based on JBI Design Translating requirements into UML, documenting the process. Translating UML into BPEL workflow: service composition and execution. LINK TO BPEL GRAPHIC. Flooding • Floods cause more death and destruction of property than any other natural hazard in the United States – 75% of all federally declared disasters are floodrelated. • The June 2008 floods in Indiana, Illinois, Iowa, and other parts of the Midwest reinforced the importance of this problem. – <20 deaths but potentially billions of dollars in damage. What can be done? • Flood planning, forecasting, and emergency response can all be greatly enhanced by integration of online Web services. • Existing services include online NWS stream gauges and Weather forecasting services. • Our project goal is to couple these to flood modeling services, loss estimation services, and mapping services. • Connect these services end-to-end as workflows. – Provide planning capabilities to mitigate extreme events. – Provide alert systems to quickly estimate at-risk areas – Automate and streamline loss estimation to simplify disaster declartations. Project Study Area • Ravenswood neighborhood of Indianapolis. – Frequent flooding; site of IMA Virginia B. Fairbanks Art and Nature Park – Extensive historical data, detailed elevation data, building inventory Web Services in Development Service Description Inundation Modeling Service Web service wrapping of the USGS FastMECH service. Parcel Information Service Extract land parcel metadata from WFS: IDs, parcel centroids, etc. Building Information Service Extract building structural information, and assessed values from Indiana Department of Local Government and Finance database Loss Estimation Service Uses HAZUS-MH as a backend service to perform Level 2 Analysis Mapping and Plotting Service Export inundation results as KML Users Citizens Access-Control NSDI Project Analysis NSDI Project Governance Services NSDI Project Services Oriented Architecture (SOA) Geospatial Assets Data Providers SOA Design and Role-based Access Control Scenario 1: NSDI Client accessing a local resource Client Login WFS Request WFS Request& Response WFS Response Cooki IMS Identity e Management WFS Web Server Access Authentication Control NSDI Framework site SOA Design Role-based Access Control Scenario 2:and NSDI Client accessing a remote resource Client Other Client Login WFS Request WFS Response Cookie WFS Request& Response IMS WFS WFS Request& Response IMS Identity Management Web Server Authentication WFS Identity Management Web Server Access Control Access Control NSDI Framework site Other SDI ritical Infrastructure site)CI Federation Fine grain Access Control rules: Feature Constraints Spatial Extent Constraints NRCan Client: Architecture Demonstration WMS &WFS Access Control Rules Any Windows Desktop Gaia Viewer Carbon Arc ArcGIS 9.2 Desktop HTTPS IMS Access Control Rules CubeSERV WMS Access Control Rules WFS CubeSERV NSDI WFS (CubeSTO R) Testing - Role-based Access Control • Access Control by – • • • • • Geography Island of Galveston Feature OGC Operation Roles – • • • • Role NSDI User – ‘Jeff’ EOC User – ‘Keith’ DataProvider – ‘Edric’ WFS to Secure SDI client Jeff Keith Edric Secure SDI – Geographic Access Control Secure SDI – Geographic Access Control Secure SDI – Geographic Access Control Jeff Secure SDI – Geographic Access Control Jeff Secure SDI – Geographic Access Control Jeff Secure SDI – Geographic Access Control Jeff Secure SDI – Geographic Access Control Jeff Secure SDI – Geographic Access Control Secure SDI – Geographic Access Control Secure SDI – Geographic Access Control Secure SDI – Geographic Access Control Jeff Keith Secure SDI – Feature Level Security Jeff Free Secure SDI client available at www.thecarbonportal.net Secure SDI – Feature Level Security Jeff Secure SDI – Feature Level Security Keith Secure SDI – Feature Level Security Keith Secure SDI – By OGC Operation Secure SDI – By OGC Operation Secure SDI – By OGC Operation Secure SDI – By OGC Operation Secure SDI – By OGC Operation Free Secure SDI client available at www.thecarbonportal.net Access Controls Rules Web Services in Development Service Description NSDI Web and Feature Service (available) Serves national-level roads, hydrography, and governmental units through OGC-compliant WMS/WFS; supports Filter Encoding to constrain queries Secure SDI Web Feature Service Implement role-based access control for national-level roads, hydrography, and governmental units via WFS and CubeWerx IMS Identity Management Service Enables development of access control rules, single-sign on, authentication, access control and other security functions Project Deliverables Wiki to all project documents • • • • • • Best Practices Common terms Processes and Models Lessons Learned Working Services and Examples Questions? Best Practices in Geospatial SOA NSDI Cooperative Agreements Program (CAP) 2008 Best Practices in Geospatial Service Oriented Architecture (SOA) Project Contacts: Neil Devadasan, ndevadas@iupui.edu Jeff Ehman, jeffe@imagemattersllc.com Jeff Harrison, jharrison@cubewerx.com