1-cadastre software based on open source in kyrgyztancadastre software based on open source in...
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Two words about Kyrgyzstan
� Situated in Central Asia, having borders with Kazakhstan, Uzbekistan, Tajikistan and China
� Before 1991 was one of the Soviet Union republics.
� Total area of the country is 198.500 m2
� The population is about 5,2 million.
� Languages: Russian (official), Kygryz (state language).
Land Registration Agency
� Local name – Gosregister
� Responsible for land cadastre, rights registration and valuation
� Have about 49 regional offices countrywide.
� One central office, Land use Institute, Agency of cartography and geodesy.
� Supported by World Bank and Sida through Swedesurvey agency (Swedesurvey worked before 2009)
Computerized registration system
� The name is Automated Registration System (ARS)
� Developed on MS SQL Server and MS Access (client)
� Currently widely used almost in all offices
� Has central database replicated from regional offices, providing external services to banks, real estate agencies and others
Core functions
� Applications processing� Titles registration� Owners registration� Encumbrances and other restrictions
registration� Creation of new property objects in text
mode.� Amalgamation and division in text mode� Printing certificates� Different reports generation� Archive
Cadastre software developmentBackground
� Before introduction cadastre software different standalone tools and packages were used. Like ESRI ArcEditor, MapInfo, AutoCAD, GeoDraw, etc.
� Operations with property objects were duplicated by ARS and graphical representation on the paper and digital maps
� No central storage for digital maps
Cadastre softwareFirst attempt
� In 2007 was initiated a creation of cadastre software in the scope of World Bank project.
� The following tools and formats were used:� ESRI ArcGIS Engine
� Visual C#
� Shape files
Core functions
� Layers management with customization
� Map viewing
� Creation of new objects by coordinates
� Amalgamation, division by coordinates
� Property objects liquidation
� Printing forms of cadastre plan and land parcel binding
� Advanced search by property parameters
� The only way to manage map objects is coordinates
� No graphical tools
� No central database and network environment support
� High cost per one sit (about $800)
� Proprietary code
� Difficult to extend
Disadvantages
Failure reasons
� At the moment of the end of development activities there were no GPS receivers in piloted offices
� Lack of digital maps
� There were only 2 licenses of ArcGIS Engine in central office. No one wanted to buy licenses from the own budget
� Very high cost to introduce database and network support
Cadastre software Second attempt
� In 2008 Swedesurvey initiated development of the new cadastre software with extended capabilities
� From the beginning it was targeted for small regional offices
� There were created 2 versions in the scope of Swedesurvey project
Basic requirements
� Create a solution, based on Open Source components (free of charge)
� Introduce network database support as a central storage of digital maps
� Develop graphical tools to manage map objects
� Integrate with ARS database
� Move all cartographer functions from ARS to Cadastre software
� Process applications from ARS
� Extend different functions from previous release
� Add new functions
Why Microsoft, not Java?
� Existing environment is built on Microsoft products including ARS and central database
� In the nearest 10 year Windows will not disappear from the client sits
� Server side could be ported on Unix box
� Hard to find Java programmer to work on government agency
Results
� Solution was successfully piloted in 2 regional offices
� It was taken a decision to renounce the use of commercial software and introduce open source solution in all offices gradually
� New requirements were prepared for the third version
Cadastre software(current release)
� The name is “Cadastre for ARS”
� A lot of improvements were done
� Development finished in November 2010
� Will be installed in 4 offices by the end of year
System architecture
� Client-server three-tier architecture with well-defined interfaces
� Business layer (middle) implemented as a web-service
� Modular nature of tiers
� Works over TCP or HTTP (HTTPS) protocols
Integration with ARS
� Integrated with ARS (main database) by Property code (identification number)
� Property objects are created in cadastre software and automatically replicated into ARS
� Information on owners, rights and restrictions is taken from ARS
Core functions
� Map layers management and customization� Add, remove layers (raster, shape file, PostgreSQL)
� Customization of colors, fills, lines, labels and business objects binding
� Map viewing
� Simple georeferencing� By World File
� By polygon on the map
� Applications processing� Moving applications between departments
� Applications distribution among department staff
Core functions
� Spatial analysis� Set of common spatial functions integrated with
information from registration database (ARS). Type of owner, type of land, type of usage, cost, etc.
� Basic topology verification
� Export to shape file or raster formats
� Printing forms� Cadastre plan
� Land parcel binding
� Free printing with customized parameters
Core functions
� Advanced search� By map objects
� By property parameters
� By address
� By owners
� Property objects operations� Creation
� Amalgamation
� Subdivision
� Liquidation
� Buffer� Creation of buffer zones internal or external
Advanced graphical tools
� Rule� Point� Arc� Polyline� Polygon� Closed polygon� Internal polygon� On the fly switching between polygon,
polyline and arc� Perpendicular
Advanced graphical tools
� Parallel� Movement� Rotation� Vertex edit� Amalgamation� Subdivision� Copying� Length and angle
� Total station
� Linear intersection
Lessons learnt
� It is important to involve end users from the beginning, to get a clear vision about their needs. Don’t stick on TORs
� It is vital to have services-oriented architecture giving you maximum of interoperability, flexibility, scaling and security control related to the business processes
� It could be necessary to have any of CAD programs to create cadastre plans and store them together with property objects
� The ideal solution couldn’t be created from the first release
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