The core of WaSHMIS is formed by a Geographic Information System (GIS). A GIS is a spatial database for central storage of all map based data...
Standard Asset Layers:
The core of WaSHMIS is formed by a Geographic Information System (GIS). A GIS is a spatial database for central storage of all map based data. This database is hosted in the cloud and gives authenticated users access through either browser or desktop clients such as QGIS or ArcGIS. Depending on a user's’ privileges, they can either view, query, analyse, update or manage the central asset registry.
The generic WaSHMIS GIS data model is made freely downloadable in order to promote WSP to get started with GIS without each having to figure out how to organise their data. It includes standardised layers for:
- Pipeline/Sewerage mains and service lines
- Meters, master meters, customer accounts
- Service points such as water/sanitation kiosks and blocks
- Water storage facilities such as dams, reservoirs, tanks, wells, pumps and pumping stations
- District Metering Areas (DMA)
- Valves, Joints, Nodes, Hydrants, etc.
Some reference layers which may be turned on or off and queried if available, such as:
- Parcels, cadastral data
- Census data (population, income levels, access to water/sanitation services, etc.)
- Topographic data such as rivers and roads
- OpenStreetMap, bing and Google Map type of web based background layers
Depending on the size and budget capabilities of the WSP, the data collection exercise could range from digitizing from existing paper based plans of network distribution components to more sophisticated approaches such as network detection using signal generating equipment.