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<br />OOG336 <br /> <br />The ResIdent Power and Reservoir System Model (PRSYM) <br /> <br />Language SpecificatiOn <br /> <br />A widely used programming language that supports the object-oriented modeling approach is <br />C++. PRSYM software should primarily be implemented in this language. It should be <br />possible, however, to interface with commercially available linear and nonlinear <br />programming packages. <br /> <br />Computer Platfonn <br /> <br />The DSS is currently being designed to operate ~a UNIX-b1fsM operating system. The <br />modeling environment, therefore, must function within the same frazi1ewark. <br /> <br />User-Interface <br /> <br />CreatiOn and ModificatiOn of the River/Reservoir System Model <br /> <br />The interface shall provide the user with the capability to easily create (or modify) and <br />graphically express a reservoir system network. The network will include the data, <br />operational policies, and selection of the functionality of the objects. Once a model is <br />created or modified, it can be saved as a distinct model in the database. <br /> <br />Object Manipulation <br /> <br />The interface must provide the user with the ability to manipulate the objects directly. This <br />includes viewing or modifying the data of objects, as well as adding, deleting, or changing <br />the relationship among the objects. <br /> <br />Output Selection and Viewing <br /> <br />The interface shall provide the utilities for the user to select the output variables of interest <br />and to view that output in tabular or graphic form as specified (see also Analysis Tools). <br /> <br />~ of Data Display <br /> <br />The data display/edit utility must support the display of data (including constraints) and <br />output in specified aggregates. For example, it should be possible to view/edit all power <br />plant data for the system or a specified group of projects, to modify a constraint at a group <br />of proiects. or to plot dam releases at specified reservoirs. - <br /> <br />Display and Use of Time Series Data <br /> <br />Time series data (input and output) should be displayed with the appropriate time variable, <br />depending on the time step of the data. The interface must support the flexible selection of <br />the starting time of simulation, independent of the initial time of any object's time series <br /> <br />3-14 <br /> <br />-- <br />