©2009 Cadcorp Compass 09 25th June 2009 O’Callaghan Alexander Hotel, Dublin 2

©2009 Cadcorp - WebGIS and Interoperability Philip McLaughlin – GIS Technical Specialist

©2009 Cadcorp Agenda  Data Management Capturing, storing data (Spatial Data Warehouse) 2. Data Distribution (Web Based GIS) 3. Technical Demonstration

©2009 Cadcorp Data Warehouse - definition “A collection of data designed to support management decision making. Data warehouses contain a wide variety of data that present a coherent picture of business conditions at a single point in time. The term data warehousing generally refers to the combination of many different databases across an entire enterprise.” (

©2009 Cadcorp What’s required ? “Collection of data” Oracle, PostGIS, SQLServer “Wide variety of data” OGC Simple features specification Oracle – SDO_Geometry “Systems to extract data ….. flexible access to the data” Intranet/Internet browser based access

©2009 Cadcorp Spatially-enabled databases are becoming increasingly widespread and are no longer the preserve of large, enterprise, geo-spatial data stores Demand for information sharing across organisations and partnerships Adoption of Standards for Open Geospatial Consortium, Inc.® (OGC) data standards and interfaces Advances in database usability and network capability GIS becoming more mainstream IT Drivers for spatial data warehousing?

©2009 Cadcorp What db options are available ? Data volumes/performance Cost MS Access SQL Server 2008 Oracle Spatial Enterprise Personal ‘Flat files’ PostGIS

©2009 Cadcorp Spatial Data Warehouse Model GIS data Translators/ Direct write Desktop/Direct read Internet / Intranet Web Services XML, SOAP, WMS, WFS Free Browser/ Viewer GIS desktop consuming W*S Standard browser Spatial Data Warehouse

©2009 Cadcorp Spatial Data Warehouse - Costs Database Software Hardware Data distribution – internet/intranet Software GIS desktop / data preparation Web mapping Network infrastructure IT skills

©2009 Cadcorp Spatial Data Warehouse - Benefits Reduced cost of overhead in GIS data processing and distribution Improved data management possible – single location Reduced data duplication Secure controlled environment Back office system integration Possible reduced cost of ownership Appropriate user access

©2009 Cadcorp Spatial Data Warehouse - Summary Doesn't have to be complicated Doesn't have to be expensive Can offer your organisation considerable benefits

©2009 Cadcorp 2. Data Distribution (Web Based GIS)

©2009 Cadcorp GeognoSIS Is a Windows service: ‘a Windows service is a long-running executable that performs specific functions and which is designed not to require user intervention’ (Wikipedia) Responds to requests from application code Does not necessarily need to render a map Can distribute mapping data using Web Services

©2009 Cadcorp GeognoSIS Triangle

©2009 Cadcorp 3. Technical Demonstration Philip McLaughlin – GIS Technical Specialist