1. by Henrik, Kristian and Lungo
Developing an Open Source GIS Desktop Application for District Health Information System (DHIS) by
Henrik, Kristian and Lungo

2. Introduction HISP Programme
Multinational project running in many countries (India, South Africa, Tanzania, etc.)
Strengthening health information system in general with a focus of District Health Information System
Implements District Health Information Software (DHIS) at district medical offices
The DHIS is developed exclusively on MS Access

3. Motivations
Currently there is an on going development of DHIS v.2, a to be Java based DHIS Software (preferred with OSS based database)
What are the challenges for migrating the whole MS Access DHIS database to MySQL?
Can we build a Java based GIS solution to be integrated in the DHIS v.2?

4. Project Objectives
DHIS database (MS Access) and digitized maps showing locations of the hospitals from Nalgonda district was made available
Objectives
To migrate the MS Access database to an open source database system (MySQL for this project)
To create a desktop application based on open source software that make use of the DHIS database (in this project MySQL)

5. GIS features Integrated in the Java Based DHIS version
Project Approaches DB
DB Connectors
DHIS
GIS
DHIS v.2 + GIS
DB Connector DB
One Database, Two
Applications (DHIS and GIS)
We customized an existing GIS Framework, called JUMP
GIS features Integrated in the Java Based DHIS version
We developed a GIS Solution from Scratch based on GeoTools

6. Migrating Access Database to MySQL
Tools Used
MyODBC: an ODBC driver for MySQL database
Navicat: a GUI for MySQL database
Process
Connect MySQL database to MS Access database using MyODBC
Export MS Access tables with data to MySQL

7. Linking GIS Features to the Database
Problem:
No common fields for the feature information and database records.
Even the hospital names are not the same!
Solution
Create additional table that maps hospital Feature IDs to the Database OrgUnit RowIDs

8. Querying the Database Output Two querying approaches Health indicators
Region Query
Select a region on the map, query hospital feature information, save hospital id in a variable, connect to the database, execute SQL-99 query, filter the result with hospital id, print the result on a Table
Text Query
Connect to the database, select OrgUnit and Period, display result, highlight corresponding OrgUnit on the Map

9. A very short introduction
Jump
A very short introduction

10. Jump overview Jump is a GIS application Written entirely in Java
Read and writes GML, SHP, WKT
Can easily be extended in many ways without recompiling

11. Jump extensions
A Jump extension is implemented as a collection of classes packaged as a jar file.
Jump looks for these jar files in a specific directory.
Classes named *Extension are special and registers the other classes when the extension is loaded.

12. Extension types Plugins – Menu items Cursor tools – Toolbar buttons
Tool boxes – Modeless dialogs
Renderers – Control drawing
Data sources – Read/write other formats

13. Our use of Jump Show a map of the Nalgonda district.
Show all hospitals in Nalgonda
Display health indicator values for mandals and hospitals

14. Limitations Limited control over presentation Sparse documentation
Map view is developed more for input than output
Sparse documentation
Do I do X the right way?
Is Y not supported or have I just not found a way to do it?

15. Open source Java GIS toolkit
Implementation of OpenGIS Consortium specifications
Why use GeoTools?

16. Implementation Problems GeoTools JTS JGoodies JPanel Coordinates
Documentation
Dependencies

17. Conclusion
Questions?