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Introduction to Open Source GIS

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This presentation introduces open source, open source GIS, OSGeo. This talk was given to the people who attended 'Capacity Building For National Surveying and Geographic Information Institute' program.

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Introduction to Open Source GIS

  1. 1. Introduction to Open Source GIS Sept, 2017 Mr. Shin, Sanghee Capacity Building For National Surveying and Geographic Information Institute
  2. 2. Lecturer Name: Shin, Sanghee Department: Gaia3D, Inc. Contact: 010-9686-2630 E-mail: shshin@gaia3d.com <Education Background> - Seoul National University - KAIST <Short Biography> - Chair of International FOSS4G Conference, 2015 - Board of Directors, OSGeo Foundation, 2015 - Chair of Technical Advisory Group of UN Open GIS Intiative, 2016
  3. 3. I CHAPTER Overview of Open Source SW II CHAPTER Open Source GIS III CHAPTER Open Source GIS Projects CONTENTS IV CHAPTER OSGeo – Open Source Geospatial Foundation V CHAPTER Wrap-Up
  4. 4. Source: https://www.youtube.com/watch?v=IeTybKL1pM4
  5. 5. 01 l What is OSS? 02 | SW Models 03 | Benefits of OSS 04 | WhySelect OSS? Overview of Open Source SWI.
  6. 6. 7 1. What is Open Source SW?  Open source SW(OSS) is the computer SW that is available in source code form under certain licenses.  Users of OSS are permitted to use, copy, study, change, improve and even redistribute those OSS freely.  ‘Free’ does not mean ‘Free of Charge’ but ‘Freedom’ or ‘Liberty’ Freedom Of Software Freedom of Redistribute Freedom of Modify Freedom of Copy Freedom of Use
  7. 7. 8 2. SW Models – Cathedral vs. Bazaar Cathedral Bazaar Leverage own knowledge Leverage others knowledge too <Closed Development> <Open Development>  Designed and developed by inside R&D lab  Inside knowledge, intellectual property, experiences  Idling knowledge, limited leveraging outside knowledge  Designed and developed with other outside partners  Inside knowledge + outside knowledge  ‘We are smarter than Me!!’ In-House Development Collaborative Development  Leveraging inside & outside knowledge  Open Source Software Development Model
  8. 8. 9 3. Benefits of Open Source SW  Benefits of Open Source Software  Empower people, save money, save resources, increase stability, access to source code, access to skilled community of developers Develop the society by sharing technology & outcomes!! 1. Technological Aspects 2. Economical Aspects 3. Business Aspects 4. Other Aspects Rapid development of high- class SW Increased stability by skilled community review Reduce technological gap to leading proprietary SW company Internalize outside SW developer resources Very low adoption cost Reduce SW development cost Easy to customize Reuse successful story Extend company’s products portfolio Open up new market by providing diversified services & products Improve brand image of company Reduce energy Self-Satisfaction Help society
  9. 9. 10 4. Reasons Why Select Open Source  Open Source Advantages over Commercial SW(2007)  Open source’s price tag is clearly important driver. OSS is practically cheaper than commercial one.  57% said that accessibility to source code really matters and 41% cited community code review as an important benefit over proprietary. 80% 57% 41% 20% 18% 15% 15% 15% 10% 6% 5% 0% 20% 40% 60% 80% 100% Price Source Code Access Community Code Review Don’t Know Bug Fix Turnaround Security Code Quality Best Product Functionality Easier to Adopt in Organization Other IP Protection  Price & open source code are key factors! * Source : Barracuda Networks
  10. 10. 11 4. Reasons Why Select Open Source  Open Source as Better Quality Software(2013) Source: BlackDuck Software, ‘2013 The Future of Open Source’
  11. 11. 12 4. Reasons Why Select Open Source  Open Source as Better Quality Software(2014) Source: BlackDuck Software, http://www.slideshare.net/blackducksoftware/2014-future-of-open-source-survey-results 1 2 3 4 Quality Security Ease of Deployment Source Code Access
  12. 12. 01 l What is Open Source GIS? 02 | WhyOpen Source GIS? 03 | Characteristics of GIS 04 | GIS: Vertical Set of Many SW Open Source GISII. 05 | Another Lego Block 06 | Rising of Open Source GIS
  13. 13. 14 1. What is Open Source GIS?  Open Source GIS • FOSS4G : Free Open Source Software for Geo-Spatial • GeoFOSS : Geospatial Free Open Source Software
  14. 14. 15 2. Why Open Source GIS?  Current State & Needs of Open Source GIS  Boom-up of Open Source & Open Source GIS - Around 300 ~ 400 Open Source GIS projects are available (Freegis.org, 2011)  Advance of Open Source GIS - OSGeo Foundation : Commercial proprietary GIS SW can be replaced with Open Source GIS - Google used Open Source based GDAL in its Google Earth program - AutoDesk opend the source code of MapGuide, FDO & MetaCRS and then donated those to OSGeo - ESRI actively used GDAL and also changed its ArcGIS GeoPortal Server to Open Source based one  Active adoption of Open Source GIS in UN, EU, USA , Canada and other countries Current State  Want to meet lots of needs of GIS from public sectors  Want More with Less!!  Want to replicate other people & institution’s experience  Want to manage & modify the system by ourselves!! Necessity
  15. 15. 16 3. Characteristics of GIS  Characteristics of GIS  GIS = Vertical Set of Many Software • Interoperability is very crucial among components • Linux, Apache, PHP are Horizontal based Software • GIS is Vertical Architecture based one from DB to web client  GIS as Public Infrastructure = Spatial Data Infrastructure • Vendor neutral, standard based architecture is very important • Active standardization by ISO, OGC  Open Source GIS as another Lego Block • Active implementation of “Standard Compatibility” by Open Source GIS • Open Source GIS could replace commercial proprietary SW/Components
  16. 16. 17 4. GIS: Vertical Set of Many Software  Characteristics of GIS : Vertical Set of Many Software Data DBMS Server Middleware Interface Client Map Image DEM Oracle PostgreSQL ArcServer ArcSDE GeoServer MIP ArcTMS TMS GeoWebCache WMS WFS WCS CSW ArcMAP Google Earth QGIS Web
  17. 17. 18 5. Another Lego Block  Open Source GIS as Substitute for Proprietary Software ArcReader ArcMap/ArcGIS ArcINFO/ArcGRID ArcPad ArcSDE ArcIMS ArcGIS Server VB, Python uDig, GRASS, gvSIG, QGIS, OSSIM uDig, GRASS, gvSIG, QGIS, OSSIM GRASS, OSSIM, SEXTANTE gvSIG mobile PostGIS Mapserver, GeoServer, DeeGree GRASS, SEXTANTE PHP, Python, Perl, C#.net, etc… Viewing Cartography Analysis Devices Database Web Spatial Server Scripting • Source : Prof. Kwangwoo Nam
  18. 18. 19 5. Another Lego Block  FOSS4G Projects under OSGeo Umbrella Geospatial Libraries Web Mapping Desktop GIS Metadata Catalog
  19. 19. 20 5. Another Lego Block  C Tribe OGR/GDAL Mapserver GRASS PostGIS OSSIM Proj4 GEOS QGIS GMT TerraLib MapGuide FDO • Source : Tyler Mitchell
  20. 20. 21 5. Another Lego Block  Java Tribe • Source : Tyler Mitchell GeoTools OpenMap GeoServer JTS Topology Suite JUMP uDig DeeGree gvSIG GeoAPI
  21. 21. 22 5. Another Lego Block  .Net Tribe • Source : Tyler Mitchell Proj.Net WorldWind NTS SharpMap MapWindow GDAL Proj4 JTS OGR
  22. 22. 23 5. Another Lego Block  Web Tribe • Source : Tyler Mitchell MapBender TileCache MapBuilder CartoWeb PostGIS WMS Mapserver OpenLayers FeatureServer Ka-Map Geoserver GeoExt MapFish OpenScales ExtJS
  23. 23. 24 JSTS shapely JTS Topology Suite (Geometry Engine) Source: http://www.osgeo.org/files/tyler/images/siglibre_foss_sig_relacion.html
  24. 24. 25 6. Rising of Open Source GIS  Google Trends Analysis * Source: http://www.google.com/trends/ ArcMap QGIS
  25. 25. 01 l FOSS4G Based NSDI 02 | Real Cases 03 | Korean Cases 04 | Open GeoData Open Source GIS ProjectsIII.
  26. 26. 27 1. FOSS4G Based NSDI  FOSS4B Based NSDI Architecture
  27. 27. 28 1. FOSS4G Based NSDI  FOSS4B Based System Architecture Data DBMS Server Middleware Client Open Street Map Open Aerial Map GeoNames PostGIS MapServer MapGuide GeoServer Deegree Squid TMS GeoWebCache QGIS uDIG Open Layers GeoExtMap Window OWS Interface World Wind LeafletOpen Scales GRASS GeoNetwork
  28. 28. 29 1. FOSS4G Based NSDI EU : INSPIRE  EU : INSPIRE • Hybrid model mixing proprietary and foss4g
  29. 29. 30 2. Real Cases  Geo Bolivia • Pursuing Open Source GIS based NSDI
  30. 30. 31 2. Real Cases  IGN, France  Managing more than 100M spatial entities using PostGIS http://www.ign.fr
  31. 31. 32 2. Real Cases  MassGIS, USA  Using PostGIS, GeoServer, GeoExt with ESRI Products http://maps.massgis.state.ma.us/map_ol/moris.php?Yes=Yes
  32. 32. 33 2. Real Cases  MassGIS, USA
  33. 33. 34 2. Real Cases  United Nations Open GIS Initiative  From ‘More with Less’ to ‘Better with Less’
  34. 34. 35 2. Real Cases  TD of Spiral 1 on Sep, OD of Spiral 1 will be on November.  United Nations Open GIS Initiative • 2 times meeting was held and 3rd meeting will be held on November
  35. 35. 36 3. Korean Cases  Open Source GIS Adoptions in Korea
  36. 36. 37 3. Korean Cases  NSDI Portal http://www.nsdi.go.kr/ http://www.gmap.go.kr  OpenLayers was used as main web client!
  37. 37. 38 3. Korean Cases  Korea Aerospace Research Institute and Korea Meteorological Administration  GeoServer, GWC, OpenLayers http://arirang.kari.re.kr http://gis.kma.go.kr/COMIS4P/map/map.jsp
  38. 38. 39 3. Korean Cases  GeoServer, GWC, Squid, OpenLayers [Smart Phone] [FOSS4B based Transport Information Service System Architecture]  National Transport Information Center
  39. 39. 40 3. Korean Cases  Site Suitability Analysis for Investment  PostGIS, MapServer, Open Scales • Analysis Menu • Analysis Results Window
  40. 40. 41 4. Open GeoData  OpenStreetMap  OSM is made & published by people’s participation!!
  41. 41. 42 4. Open GeoData  OpenStreetMap Activities for Typhoon Haiyan (2013)
  42. 42. 01 l OSGeo 02 | Goal &Activities 03 | Incubation 04 | Conferences OSGeoIV.
  43. 43. 44 1. OSGeo – Open Source Geospatial Foundation OSGeo - Open Source Geospatial Foundation • Established in Chicago, US on 4th February, 2006. • Mission : To support the collaborative development of open source geospatial software, and promote its widespread use. • OSGeo is a NPO that is functioning as community of communities.  OSGeo General
  44. 44. 45 2. Goal & Activities  Goal & Activities of OSGeo Goal Activities  Provide resources for FOSS4G projects - Infrastructures - Legal - Financial  Promote free and open geospatial data  Create and maintain a quality brand  Create and promote free curriculum  Promote and contribute to standards  Support FOSS4G on a global scale  Support local activities and capacities  Facilitate inter-project communication  Build a solid market for business and users  Interface with industry and academia  Support the education of domain experts not <brand specialists> http://www.osgeo.org
  45. 45. 46 2. Goal & Activities  OSGeo Live - Enterprise Ready Open Source GIS Stacks
  46. 46. 47 3. Incubation  OSGeo Incubation • Efforts for ensuring high quality open source GIS development • A kind of project health inspection Have a successfully operating open and collaborative development community1 Have clear IP oversight of the code base of the project2 Adopt the OSGeo principles and operating principles3 Are mentored through the incubation process4
  47. 47. 48 4. Conferences  FOSS4G Conference • Annual largest open source GIS conference hosted by OSGeo • FOSS4G 2017 was held at Boston and FOSS4G 2018 will be held at Dar es Salaam Image source: https://www.flickr.com/groups/2926401@N22/pool/
  48. 48. 49 4. Conferences  Regional and Local Conferences • FOSS4G Asia, FOSS4G NA, FOSS4G Europe, and FOSS4G Africa as regional FOSS4G • More than 15 local FOSS4G conferences
  49. 49. 01 l Pros & Cons 02 | Commercial Open Source GIS 03 | Wrap-up Wrap-UpV.
  50. 50. 51 1. Pros & Cons  Economic Advantages – More with Less! Hardware Software Overhead System Integration Hardware Software Overhead System Integration Additional Development <Previous Cost Structure> <FOSS4B based Cost Structure> • Additional development • Could increase jobs • More with Less • Users can focus on their own job instead of spending SW/HW
  51. 51. 52 1. Pros & Cons  Social Advantages – Capacity Building • Free access to open source GIS • Source access to open source GIS Image source: Gérald Fenoy, https://www.facebook.com/gerald.fenoy
  52. 52. 53 1. Pros & Cons Proprietary Software Open Source Software  “Software of the developers, by the developers, for the developers”  Highly depends on network effects  Less economical incentive could reduce the sustainability of a project  Downside of Open Source GIS
  53. 53. 54 1. Pros & Cons  Downside of Commercial Proprietary Software Proprietary Software Open Source Software  “High Price” is always headache to users  Can be locked-in to non standard format or protocol  Black box could hinder knowledge diffusion
  54. 54. 55 2. Commercial Open Source GIS Companies
  55. 55. 56 3. Wrap-up • Open Source GIS is basically free. • The price of commercial Open Source GIS is lower than proprietary one Cost Reduction • Almost all the Open Source GIS is compliant with OGC standards • Open Source GIS can be used with existing proprietary GIS Interoperability • Anybody can modify & upgrade the system from the source code level • Can easily replicate or migrate success cases to their system Opened Source Code • Collaboration, sharing & community based SW development model • Source code will be managed by community not by company • Neutrality from specific technology or company • Anybody can join and contribute to Open Source GIS with OSGeo Collaboration based SW • Open Source GIS is now comparable with commercial proprietary GIS • Open Source GIS is now actively adopted & used all around the world Advance of Open Source GIS
  56. 56. Q & A
  57. 57. Thank You!

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