Data Model of the Runoff Module

The Pre-Processing Module has been developed under MS-Access. Being a data base application, the data model is organised in a very systematic way.

Generally, it is distinguished between online and offline operation. Online operation reads monitoring data from ORACLE and writes the results back into STP-tables under ORACLE.

Due to the complexity of the model, the following different data tables may be distinguished:

Most of the tables are not contained within the model but are externally linked. These links are described in the Table Links.

In addition to the tables from relational databases (ORACLE and Access), GIS files are used for as model inputs and for post-processing of model results. Here, a distinction is made between