WaterWare includes a set of basic and composite data types and OBJECTS for which dedicated import, editing, analysis and display functions are provided.

The data types include:

1. OBJECTS that can have any and all of the data types listed below as their "attributes";

2. Descriptors are scalar, symbolic, numeric (with associated symbolic range definitions and defaults), or text variables that are managed by the embedded expert system and a dedicated interactive editiong tool.

   Descriptors are used to define the parameters for more complex types such as:

3. Time Series which in addition to their numeric value have an associated explicit time stamp and their own set of display and analysis tools. Time series are linked to parent OBJECTS such as MONITORING STATIONS (that can hold both monitoring data as well as model generated time series), and model logical and structural elements such as SCENARIOS, NODES and REACHES.

4. Matrices, which in addition to the numeric value of each cell have a location (georeference) and geometry, including possible vertical layering, and again may have explicit time stamps. Typical example would be the 3D meteorological model results, or spatial input data.

5. GIS data (georeferenced) including points, lines, topological networks, polygons, and rasters as individual map overlays and composite maps. as a a specific tool/format, WaterWare supports spatial data export with WMS (web map server).

6. Hypertext including imagery, used to descrobe OBJECTS (see below); related and linked to the hypertext or directly to OBJECTS are all standard MIME types including text formats (PDF, rtf, doc, docx) , imagery, video/animation (MPEG), spreadhseet/tabular data (CSV), raster formats (Netcdf)