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<br />. . <br />, <br />I: OOG237 <br /> <br />The Resident Power and Reservoir System Model (PRSYM) <br /> <br />input data (Le., the time series input data need not coincide with the start time of the <br />simulation. This implies that the objects can support time series data that begins at any time <br />step, independent of the start time of the simulation). <br /> <br />Relationship to DSS User-Interface <br /> <br />To the extent possible, the PRSYM user-interface should have an overall screen design <br />similar to the DSS user-interface. <br /> <br />Connection to the Decision Support System <br /> <br />Interface Connection <br /> <br />The PRSYM interface will be called from the model menu of the DSS interface and run as a <br />process called from the DSS. <br /> <br />Analysis Utilities <br /> <br />The output of PRSYM should be accessible to whatever external analysis tools are available <br />with the DSS. It must be possible to utilize these analysis tools from the PRSYM interface. <br /> <br />DSS DaJabase <br /> <br />Each model's data (network definition, object definition and data, operating rules, selection <br />of function, etc.) will be stored in the DSS database and will be accessible to the user to run <br />in PRSYM. Each of these specific models may be called up from a menu within PRSYM, <br />with various input data options available. When appropriate, time series input data may be <br />stored in data files (rather than directly within the relational database) as long as it is <br />accessible through queries to the database. <br /> <br />Input/Output With Other Models and DSS Data <br /> <br />PRSYM will have access to hydrologic inputs (e.g., time series of local inflows) from <br />several non-resident sources which have utilized a Data Management Interface (DMI) to load <br />their output into the DSS database. Examples of nonresident sources include hydrologic time <br />series from: the Modular (Hydrologic) Modeling System (see Section 4 on Non-Resident <br />Models), utility-specific operational hydrologic modeling systems, and historical data files. <br />Additionally, to define model initial conditions, PRSYM must have access to real-time status <br />conditions stored within the DSS database, such as current reservoir elevations and the <br />forecasted generation schedule. Certain defined outputs from PRSYM will also be saved in <br />the DSS database for access as input to other models or analysis tools. <br /> <br />3-15 <br />