2013 Enterprise Track, Building GIS, Decision Support, and Location Intelligence Applications Using Open Source Tools by Justin Naifeh and Nathan McEachen
1 like1,070 views
This document discusses how open source tools can be used to build location intelligence applications and turn big data into actionable information. It provides an overview of commercial vs open source GIS software, describes how to architect applications using open standards like PostGIS, GeoServer and OpenLayers, and how ontologies and metadata can enhance semantic interoperability and spatial reasoning. Upcoming products from TerraFrame that will integrate these open source tools are also highlighted.
2013 Enterprise Track, Building GIS, Decision Support, and Location Intelligence Applications Using Open Source Tools by Justin Naifeh and Nathan McEachen
- 1. Turning Big Data into Change You Can See GIS, Decision Support, Monitoring and Evaluation TerraFrame 2013© 1
- 2. Building GIS, Decision Support, and Location Intelligence Applications Using Open Source Tools Turning Data into Actionable Information TerraFrame 2013© 2
- 3. Where the Industry was Yesterday TerraFrame 2013© 3
- 4. Where the Industry is Today TerraFrame 2013© 4
- 5. Where the Industry is Headed TerraFrame 2013© 5
- 6. Where the Industry is Headed TerraFrame 2013© 6
- 7. How to build Location Intelligence Applications Open source now allows us to build industry specific geospatial applications with: • Enhanced spatial analytics • Intelligently aggregate and analyze data from multiple sources – NO DATA SILOS! Improve information exchange! TerraFrame 2013© 7
- 8. Commercial vs. Open Source GIS Software Commercial GIS Software • • • • Is powerful, mature, but, generic (one size fits all) Requires a GIS professional to use Is difficult to build industry specific applications Is very expensive Commercial vendors cannot meet the wide demand for industry specific GIS applications TerraFrame 2013© 8
- 9. Commercial vs. Open Source GIS Software Open Source Tools • Have traditionally been software developer toolkits and not standalone applications • Require software developers to heavily customize • Are more modular for building industry specific applications Open source software enables us to build industry specific applications for less cost than commercial tools and without any reoccurring licensing fees TerraFrame 2013© 9
- 10. Open Source Tool Landscape • PostGIS – Geospatial database • GeoServer – Mapping server • OpenLayers – Web mapping front end TerraFrame 2013© 10
- 11. The Case for Open Source • Open standards historically: – Lead to breakthroughs in information exchange – Encourage technological innovation – Enrich the masses • Closed standards historically: – Are understood by an educated elite – Hinder information exchange – Enrich an elite class TerraFrame 2013© 11
- 12. Critical Components to Interoperability • Compatible – Data Format – Data Structure – Content Semantics TerraFrame 2013© 12
- 13. Phaistos Disc – 1,700 BC TerraFrame 2013© 13
- 14. Comparing Movable Type Technologies Compatible Data Format Data Structure/Langu age Semantics TerraFrame 2013© Phaistos Chinese Gutenberg Yes Yes Yes No Not Quite Yes No No No 14
- 15. GIS Tools Compatible Data Format Data Structure/Langu age Semantics TerraFrame 2013© Commercial Tools Open Source Yes Yes No No No No 15
- 16. Introduction to Ontologies • Formally represents knowledge as a set of concepts within a domain • Used in artificial intelligence • Allows software to make human-like inferences from data • Ideal for semantic conflict resolution • Can enhance spatial reasoning TerraFrame 2013© 16
- 18. Ontologies Nathan Is a Person Is a Living Being Person Record Name Nathan TerraFrame 2010© Coordinates POINT <X,Y> 18
- 20. Mapping Attributes with the Ontology TerraFrame 2013© 20
- 21. Mapping Values with the Ontology TerraFrame 2013© 21
- 22. Ontologies • Describes a domain (e.g. medical) • Stores relationships – e.g. “is-a”, “has-a” • Provides knowledge representation about the domain • Captures human knowledge into machine representation, enables automated reasoning TerraFrame 2013© 22
- 23. Ontologies Compatible Data Format Data Structure Semantics TerraFrame 2013© Commercial Open Source Tools Ontologies Yes Yes No No No Yes No No Yes 23
- 24. Architecting a Location Intelligence Application It’s the Metadata, Stupid! TerraFrame 2013© 24
- 25. Geo-Universals – Boundary Classifications City Is Allowed In TerraFrame 2010© Country State Is Allowed In
- 26. Geo-Ontologies Geoentity Name Coordinates USA MULTI POLYGON<….> USA Is Located In Colorado POLYGON <….> Colorado TerraFrame 2010©
- 32. Enhance spatial reasoning by representing locations as an object node graph TerraFrame 2013© 32
- 33. Creating Multi-Thematic Maps with Open Source Tools TerraFrame 2013© 33
- 34. Traditional Architecture Application/Data Source • Custom Application • Web Service • MS Access, SQL Server, PostGIS Data Conversion • Shapefile • Excel • CSV • KML, GeoJSON, etc. GIS Stack • ESRI software suite • GeoServer • Map Server • Quantum GIS
- 35. Integrated Architecture Application Stack GIS Stack Client OpenLayers Server GeoServer PostGIS
- 36. The GIS Stack (OpenLayers + GeoServer + PostGIS) Render Client/Browser OpenLayers JavaScript HTTP Example: A WMS request for a layer defined in PostGIS Image GeoServer SQL Result Set PostGIS
- 37. The Map Structure Layer 1 Map Layer 2 Layer N
- 40. Modeling the Style Generate the style from an intermediary object Style • Polygon Fill • Polygon Width • Polygon Stroke • Polygon Opacity • Point Size • Point Stroke • Point Opacity • Label Size • Label Font • Label Opacity • Layer Opacity • Text Placement SLD KML Carto
- 41. Automated Map Cycle Initial Map Request OpenLayers places the image in the DOM GeoServer renders an image (WMS) Generate the SQL and SLD *transactional Invoke OpenLayers and request the layer Create a new layer in GeoServer Serialize the layer into JSON Convert the layer JSON into JavaScript
- 42. Runway SDKtm • Open source enterprise data management platform – Dynamic type creation – Role based access control – Support for mobile • Integrated ontology engine Available now on GitHub under LGPL TerraFrame 2013© 42
- 43. Runway GIStm • Manages: – PostGIS – Geospatial database – GeoServer – Mapping server – OpenLayers – Web mapping front end • Integrated GIS and location intelligence Available soon on GitHub under LGPL TerraFrame 2013© 43
- 44. Runway GeoDashboardtm Available in early 2014 under LGPL TerraFrame 2013© 44
- 45. Existing Closed Platforms TerraFrame 2013© 45