Transcript Slide 1
©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 1. 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.” (www.webopedia.com) ©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 Drivers for spatial data warehousing? 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 ©2009 Cadcorp Data volumes/performance What db options are available ? Oracle Spatial PostGIS SQL Server 2008 Enterprise ‘Flat files’ MS Access Cost Personal ©2009 Cadcorp Standard browser GIS desktop consuming W*S Free Browser/ Viewer Internet / Intranet Desktop/Direct read GIS data Web Services XML, SOAP, WMS, WFS Spatial Data Warehouse Spatial Data Warehouse Model Translators/ Direct write ©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