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Open Source Geospatial software for the the Army Corps of Engineers
Wetlands Regulatory program
FOSS4G2007Victoria, B.C. Canada
Michael Smith
Engineer Research & Development Center Remote Sensing/GIS CenterUS Army Corps of Engineers, Hanover, [email protected]
Task: Revise Regulatory Software
Geospatial InputGeospatial IntelligenceComplex formsMany Business RulesNational Upward Reporting / Geospatial
Reports
Business Requirements
Account/password management for thousands of users
Strictly Defined Roles and Access
Remote Data Centers (run by people we’ve never met on machines we’ve never seen)
24x7 Systems with Fail-Over/Disaster Recovery
Oracle standby servers and load-balanced apache
24x7x365 DBAs at data centers
ORM1
VB with Oracle data storage (3 stored procedures)
Mapping done via ArcIMS called from VB
3 years development for point spatial storage
$5 M budget
2 Updates in 2 years
District by district deployment
ORM1
ORM1
ORM1 GIS Implementation
USA
CE C
orp
ora
te S
DE/O
racl
e g
eodata
base
OMBIL / ORM
CorpsMap
Dis
tric
t eG
ISCOM
OBJECT EXCHANGE
Analysis
RFMIS
EngLink
ORM Data V&V Process
SDE
Lat/LongPLSSCongressionalCountyWater bodySoil typeHUC
ORM Input Panels
Write to OMBIL
IMS
REMIS
ArcGIS Server Architecture
Few Moving Parts
Apache
MapServer CGIOracle
WebServices
Not that exciting an architecture( but do you really want it exciting? )
Oracle Database backend - all data stored there
Apache frontend
Pl/Sql Stored Procedures - for Business Logic
Oracle Application Express (Web metadata-driven front end)
MapServer provides GIS visualization for web
MapServer provides OGC interoperability (cascading WMS/WFS and integration with ArcGIS)
One of Many (Clients) Approach
Our web interface and MapServer CGI just one method to get at the data
Google Earth (kml from Oracle, wms from MS)
ArcGIS (via SDE, wms, VB.net)
Bentley MicroStation (via ProjectWise)
Others…..
Metadata Driven Development Environment
Apex - more
Application Reports
Activity / Session State Management
ORM2
1 year development (actually around 7 months, 5 months of group meetings on
peoples gripes)
$750K budget
Point / Line / Poly spatial storage
Web front end with Oracle backend (everything in oracle with mapserver cgi)
1 division (5 districts) initial deployment
All remaining districts (except 1) deployed following month
Hardware Platform
HardwareSun Fire 12K / 32 cpu / 32 gb RAM - for Database1 of 40 Oracle Databases (1 gb ram allocated)2 Sun Fire T2000 with Load Balancer / Shared with
3 others Requirements are minimal though Serve 50 (10 concurrent) users with Oracle XE (free)
on a laptop (macbook pro) (in a vm)
Benefits
Very stablesame architecture for 6 years
Scalablesupporting ~ 1350 users, around 500 distinct
users per day, 30-35K page views, 9K map views Oracle XE is free / Apex is included If not XE, your org probably has Oracle already If not, Postgres / PostGIS
Page Views
ORM2 Dashbaord
Full History
On-screen Digitizing
Consume WMS
WMS Services
Spatial Details from Query
Spatial Analyses
Spatial Searches
Spatial Searches - By Address
Google Earth - Export
Google Earth - Import
Presentation from 2004
Build enterprise class applications with unlimited scalability … Oracle runs all the Mission Critical Systems of the Corps Sun or Linux Servers at Agency Data Centers Independent development, testing and production environments Oracle is our primary RDBMS Oracle is our primary application & web development environment Oracle Spatial geometry for application specific and dynamic
geospatial data We use shape files or Oracle for rendering read only/basemap data PL/SQL for domain logic University of Minnesota Map Server for Map Generation Adopt OGC Standards (WMS/WFS) and SOAP/XML RPC Access to
Geospatial Data DMS OWTchart for graphing Refractions OGC->IMS script for ESRI compatibility
Questions?
Versions over the Years
Year ESRI Our Choice
2001 MapObjects ForNet / MapServer 3
2002 ArcView IMS Mapserver 3.5
2003 ArcIMS 3 Mapserver 3.6
2004 ArcIMS 3 Mapserver 4.2
2005 ArcIMS 4 Mapserver 4.6
2006 ArcMap Server Mapserver 4.8
2007 ArcGIS Server Mapserver 4.10 (soon 5)
