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MODSIM is supported by CSU and Dr. Labadie. Upgrades and enhancements can be <br />? <br />expected. <br />The CRDSS Project Team is very familiar with MODSIM, its development, data <br />? <br />requirements, and applications. <br />Data developed for the Gunnison River basin study may be transferable to the CRDSS <br />? <br />efforts. <br />Deficiencies <br />The solution concepts, involving a network flow solution (Lagrangian Relaxation), are <br />? <br />complex and are more difficult for the everyday water user to understand. <br />The details related to the initial set-up of the flow network are more complex than the <br />? <br />more direct procedures used by the allocation models. <br />The derivation of virgin flow, if required by a user of the CRDSS, will require additional <br />? <br />work effort by the CRDSS Project Team. <br />The model documentation which currently exists only for the PC version needs to be <br />? <br />updated to some degree to reflect the enhancements available in the workstation version <br />and a description of the current solution algorithm. <br />3.0 CONCLUSIONS AND RECOMMENDATIONS <br />The MODSIM model is recommended for the core water rights planning model for the CRDSS. <br />Given the attributes described above, it is concluded that MODSIM best meets the requirements of <br />functionality, accessibility, and flexibility necessary for the intended purposes of the CRDSS. <br />6 <br />A275 05.10.94 1.15-5 Fosha, Hyre <br />