new york city's spatial service-oriented architecture: an overview · 2006. 8. 14. · 26th...
TRANSCRIPT
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26th Annual ESRI International User Conference – San Diego - August 8, 2006
New York City's Spatial Service-Oriented Architecture:
An Overview
Citywide GISOffice of Strategic Technologies
Department of Information Technology and TelecommunicationsCity of New York
26th Annual ESRI International User Conference – San Diego - August 8, 2006
Mario GouveaDirector of Enterprise Spatial Technologies
Marsha KaunitzAssistant Commissioner
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26th Annual ESRI International User Conference – San Diego - August 8, 2006
Presentation Roadmap• Objectives• DoITT/NYC GIS Background• Service Offerings• Current Applications• Infrastructure
– Internet– Intranet
• Issues with Current SDLC Model• Why SOA? A strategic decision• Where we are• What is next? Upcoming Projects (CityMap)
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26th Annual ESRI International User Conference – San Diego - August 8, 2006
Objectives
To share New York City’s experience in establishing a high availability ArcIMSHosting infrastructure, developing and hosting GIS applications for City Agencies and the process of moving towards a Spatial Service-Oriented Architecture
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26th Annual ESRI International User Conference – San Diego - August 8, 2006
DoITT/NYC GIS Background
• DoITT has more than 700 employees• Manages:
– 311 call center (largest in the country)– Citywide GIS– NYC.GOV portal– Other strategic initiatives
• NYC GIS is a relatively new organization
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Staff
• GIS Analysts• Software Developers• Database Administrator• Project Managers• Administrative Support• 24x7 Shared Services operations• 24x7 Help Desk
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NYC GIS
• The Citywide GIS provides services to:– Other New York City Agencies– General public via:
• NYC.GOV• 311
– DoITT
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Service Offerings
Data Creation Data Distribution Data Licensing
Data Cleanup Metadata Maintenance
Web Application
Development
Project Management Quality Assurance
NYCMAP
Updates
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Service Offerings
Performance Tests Stress Tests High-Availability Application Hosting
Security ScansAutomated Application Deployment
Functional Tests
Map creation Data Management More
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Goals
• To reduce errors and defects• Reduce delivery time (data, software)• Increase quality• Increase availability• Increase performance• Reduce application development time• Reduce costs• Constant improvement
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Goals
To move away from To
Manual Processes
AutomatedProcesses
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Goals
To move away from To
UndocumentedProcesses
Documented and RepeatableProcesses
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How?
• By reducing variability
• Sources of variability:– Poor Design– Skills and Behaviors– Unstable products/systems– Insufficient process capability
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Internet applications• DoITT - My Neighborhood • DoITT - Poletop Manager • DoITT - Map Portal • OPS - My Neighborhood Statistics• OEM - EMOLS
– Hurricane Evacuation – Cooling Centers
• DSNY - Collection Schedule • DCP - Census Fact Finder • DCP - Address Translator • DPR - Wood Debris • DPR - Parks Locator • NYCHA - Internet Mapping• BOE – Pole site Locator
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Intranet applications
• Department of Finance – PARM• Department of City Planning – GOAT• NYC GIS Data Download Portal
– Metadata Explorer– SharePoint portal
• 311 – Pseudo-web service to broker address validation and geocodingrequests
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Data Download/Metadata
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26th Annual ESRI International User Conference – San Diego - August 8, 2006
Software Development Life-Cycle
Development Test
Staging Production Disaster Recovery
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Sample App. Dev. ScenarioObtain Hosting
Guidelines/Code Samples
Inform DoITT of the intention to host
Design Application Develop Application
Unit Test Internal Review/Approval
Obtain Functional Test Scripts sample Write Functional Test
Scripts
Migrate to DEV Notify Agency of Successful Migration
Migrate to TST Notify Agency
Unit Test Migrate to STG Integration/Functional Tests
Performance Tests
Security Scans Deploy to PRD Deploy to DR Monitor/Maintain
Age
ncy
DoI
TT
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Infrastructure - Internet
25 Sun Servers
DEV, TST, STG,PRD and DR
24x7 Operation Shared Unix Services
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Reverse Proxy
Tier #1
Only allows requests to specific URLs
to pass through
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Web/ArcIMS App Server
Tier #2
ArcIMS load balancingJava Connector,
App. logic (Servlet, JSPs)
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Spatial Servers
Tier #3
Instance 1 – outputInstance2 – output2
Most CPU intensive componentsTwo ArcIMS instances per server
2 CPU servers
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Tier #4
Active/Passive Veritas Cluster Server
Database/SDE Servers
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Infrastructure - intranet
19 new Sun Servers
newPRD and DRenvironments
Shared DEV, TST, STG environments
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Web tierStatic content, Simple apps, ArcIMS App Server, ArcGIS
Server SOM, NSAPI
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Application Server (J2EE)WebLogic Process Edition
Cluster, Web Services, Process Orchestration
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Map and Geoprocessing TierArcIMS Map Servers and
ArcGIS SOCs
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Database TierOracle 10G Enterprise Edition
ArcSDE 9.1
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Infrastructure Software
• Internet:
Oracle 10G Enterprise Edition (Spatial)
ESRI ArcSDE 9.1 SP1
ESRI ArcIMS 9.1 SP1
Sun Java System Web Server 6.1
Oracle 10G Enterprise Edition (Spatial)
ESRI ArcSDE 9.1 SP1
ESRI ArcIMS 9.1 SP1
Sun Java System Web Server 6.1
ESRI ArcGIS Server 9.1
BEA WebLogic Process Edition 8.1
Solaris 8 Solaris 10
• Intranet:
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Software Development Tools• IDEs:
– Eclipse (WTP),– BEA Workshop (BPM – JPDs)
• Data Management– ArcCatalog,– TOAD, – Oracle SQL Developer
• Testing– Mercury Load Runner– Mercury Quick Test Professional– Junit
• Misc tools and frameworks: Ant,Tomcat, CVS, Spring, Struts, Hibernate, Ibatis
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Issues with Current SDLC Model
• Hosting multiple application silos• Data duplication – maintenance issues• Duplication of efforts• Cost, project duration• Proprietary APIs• Point-to-Point integration• Change Management: change is slow
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Issues with Current SDLC Model
• Increasing demand for services: City Agencies want new applications built that are better, faster
• Increasing Complexity, 44 servers to manage• Islands of information: multiple versions of same
data• Code reuse: disparate versions of code base• Time to deployment• Learning Curve• Change Management: change is slow
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Automated Deployment Scripts
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AXL deployment
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Why SOA? A Strategic Decision
• Agility • Flexibility• Enables innovation• Exposes GIS functionality to non-GIS
users
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Benefits of SOA• Reduce time to market for new services
– Focus on delivering unique business logic– Enable the creation of composite applications by
integrating one or more services– Allow services to be choreographed using BPM
• Reduce total cost of ownership of IT infrastructure and business services– Shared service infrastructure
• Business driven application development
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SOA Gartner’s Hype Cycle
Source: Gartner (August 2005)
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SOA Gartner’s Hype Cycle
Source: Gartner (July 2006)
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311 Citizen Service Center• 311 provides a single point of contact for all non-emergency City services,
and is available to residents, City businesses, and visitors.
• The list of services and information 311 provides is constantly expanding, and includes information on hundreds of services, agencies, and events. People call 311 for:
– Recycling schedule and information requests – Missed garbage collection complaints – Alternate Street Parking Rules – Noise complaints – Blocked driveway complaints – CFC/Freon pickup requests – 311 Call Taker compliments – Landlord-related complaints – Information about health insurance options for small businesses and individual
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Geocoding Service
Browser
Web Server
Siebel
Geo311
XML
GeoSupport
Oracle
XML Based Request/Response over http
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Sample XML RequestIDENTIFY ADDRESS request:<?xml version="1.0" encoding="UTF-8"?><geo311 version="2.0">
<request type="identify"><ADDRESS>
<BOROUGH> </BOROUGH><ADDRESSNUM>23</ADDRESSNUM><STREETNAME>2nd Ave</STREETNAME>
</ADDRESS></request>
</geo311>
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SOA
Information and Access Services
Data Services Spatial Data Services Ent
erpr
ise
Ser
vice
Bus
Com
mon
Ser
vice
s
Composite Applications
Presentation Services
Shared Business Services (BPEL)
Based on slide by BEA
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Current Status
• Project approved• System architecture reviewed• Intranet infrastructure built
– Undergoing security scans• Goes live: August 2006
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Next Steps
• Develop granular APIs/web services:– Address validation/Geocoding– Building information– Geopolitical data (geospatial data services)
• Expose them as web services• Create composite services• Use on internal applications• Publish on Citywide UDDI directory (when
available)
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Questions?
Mario Gouvea: [email protected] of Enterprise Spatial Technologies
Marsha Kaunitz: [email protected] Commissioner
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