Transcript Cadastre software based on Open Source in Kyrgyzstan

Cadastre software based on
Open Source in Kyrgyzstan
Alexander Solovov
Solution developer
Land Registration Agency
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Local name – Gosregister
Responsible for land cadastre, rights
registration and property valuation
Has 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)
Automated registration system
(ARS)
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Core system for automation of business
processes in land registration office.
Developed in 2003
Based on MS SQL Server 2000 and MS
Access (client)
Currently used almost in all offices
Has central database replicated from
regional offices, providing external services
to the banks, real estate agencies and
others
Before introduction of cadastre
software
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ARS operations on creating new property objects or
modifying existing (e.g. amalgamation, subdivision)
were implemented in text mode.
ARS didn’t have any spatial data or reference on spatial
sources.
In most of the offices paper maps are used to handle
geo data.
In some offices various standalone tools are used for
mapping (ArcGIS, MapInfo, AutoCAD, etc.)
Usage of standalone tools brings confusion of different
versions of data, inconsistency and has a high risk of
data loss or damage
Cadastre software
First attempt
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In 2007 was initiated a creation of
cadastre software in scope of World
Bank project.
The following tools and formats were
used:
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ESRI ArcGIS Engine
Visual C#
Shape files
Disadvantages
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Map objects are managed by
coordinates only
No graphical tools
No central database and network
environment support
High cost per one sit (about $800)
Proprietary code
Difficult to extend
Cadastre software
Second attempt
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In 2008 Swedesurvey had initiated
development of new cadastre software with
extended capabilities
Project was targeted on small regional
offices whose didn’t have any perspective to
get commercial software
Two versions were created in the scope of
Swedesurvey project
Third version has been created in 2010 in
the scope of World Bank project
Basic requirements
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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 and support existing
business rules
Move all cartographer functions from ARS to
Cadastre software
Extend and improve different functions from
previous release
Add new functions
Components
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PostgreSQL
PostGIS
SharpMap
GeoAPI.Net
Proj.Net
GDAL
Visual C#
System architecture
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Client-server three-tier architecture
with well-defined interfaces
Business layer (middle) exposed
through web-services
Modular nature of tiers
Works over TCP or HTTP (HTTPS)
protocols
Architecture diagram
Integration with ARS
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Integrated with ARS (main database) by
Property code (identification number)
Property objects are created or modified in
cadastre software and automatically
replicated into ARS
Information on owners, rights and
restrictions is taken from ARS to display in
cadastre software and use in extended
search and analysis functions
Core functions
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Map layers management and customization
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Map viewing
Simple georeferencing
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Add, remove layers (raster, shape file, PostgreSQL)
Customization of colors, fills, lines, labels and business
objects binding
By World File
By polygon on the map
Applications processing
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Moving applications between departments
Applications distribution inside department
Actions are bound to application
Core functions
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Spatial analysis
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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
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Cadastre plan
Land parcel binding
Free printing with customized parameters
Core functions
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Advanced search
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Property objects operations
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By map objects
By property parameters
By address
By owners
Creation
Amalgamation
Subdivision
Liquidation
Buffer
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Creation of buffer zones internal or external
Advanced graphical tools
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Rule
Point
Arc
Polyline
Polygon
Closed polygon
Internal polygon
On the fly switching between polygon,
polyline and arc
Perpendicular
Advanced graphical tools
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Parallel
Movement
Rotation
Vertex editing
Amalgamation
Subdivision
Copying
Length and angle
Total station
Linear intersection
Main window
Results
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Development of the last version was
finished in November 2010
Introduced in the biggest registration
office. Two offices are on the plan by the
end of 2011
It was decided to abandon the use of
proprietary software and introduce open
source solution in all offices gradually
New requirements are prepared for the
next release
Thank you for attention!
Questions?