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<br />~ " ~. (". n, <br />OUU'::;u.J <br />of the project are the development of a DSS and an Integrated Modeling System. <br /> <br />The DSS is designed to help users track water and power system status, anticipate problems, <br />develop plans to avoid problems, and coordinate planning and response efforts over a corporate <br />wide-area-network, Specifically, the software will manage current and historical systems status <br />data, manage system constraint data, track system compliance with regard to constraints, <br />commitments, and guidelines, and manage model and analysis tool DMI's (Shane, et al, 1994). <br /> <br />The Integrated Modeling System will support the scheduling, forecasting, and planning functions <br />of the DSS. The modeling system will include several types of models, including a power and <br />reservoir system scheduling and planning model (to be based on PRSYM, which is discussed in <br />more detail in the next section), a hydrologic rainfall-runoff model (to be based on MHMS, <br />Leavesley, et al, 1992), and other site-specific operations and water quality models (Miller, et al, <br />1992), <br /> <br />The project was begun in 1992 and has a four-year duration, Current funding sources are EPRI, <br />TVA, and BaR. <br /> <br />5 The Modeling Framework (PRSYM) <br /> <br />PRSYM is a general-purpose modeling framework that provides the following capabilities: <br />interactive model building and editing <br />interactive selection of object behavior (from a library of behaviors) <br />interactive constraint and operating policy specification and modification <br />interactive time step and time horizon selection <br />interactive model control selection (including simulation, rule-based simulation, linear <br />programming optimization) <br />. water quality modeling (including temperature, dissolved oxygen, salinity) <br /> <br />PRSYM is being developed primarily in the C++ programming language, an object-oriented <br />language that is based on the C programming language. The Gill is being developed with the <br />Galaxy Application Environment, a cross-platform tool that allows the program to run under <br />several common operating and windowing systems, including Unix{X Windows and <br />DosfWindows 3,1. <br /> <br />The framework is being developed in a higWy modular fashion, Three independent libraries will <br />be maintained that include the physical object library, the base controller library, and the GUI <br />library. Object methods or behaviors can be added to the physical object library without <br />knowledge of C++, <br /> <br />7 <br />