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<br />/ <br /> <br />e <br /> <br />e. <br /> <br /> <br />003rJ23 <br /> <br />development of the data base and the adaptation of the models, far <br />exceed the combined cost of hardware and commercially available <br />software. Additional costS will also be incurred for implementing <br />the models, analyses and interfaces. Estimates were developed for <br />the recommended alternatives based on a range of personnel cost <br />rates. hardware and software costs, Using average personnel costs, <br />the results for both Centralized Architecture and Distributed <br />Architecture options were compared. While the Centralized <br />Architecture costs are slightly lower. there are benefits in the <br />Distributed Architecture in terms of accessibility to users, and <br />fnickup capacity in the event of system failure, <br /> <br />. Operation and maintenance - Six major categories of ongoing <br />costs were analyzed for both the centralized and distributed <br />approaches, The annual operating costs are expected to be <br />approximately one third higher for the distributed approach, <br /> <br />. Recommended alternative. Based on increased user accessibility <br />and redundancy. the distributed system employing a data centered <br />architecture providing both forms-based and interactive graphics <br />interfaces is recommended, <br /> <br />The conclusion of the repon is that the development of a CRDSS is feasible <br />provided that a data-centered architecture is used, Such an architecture relies <br />on a powerful central database with a number of applications organized around <br />it. The repon funhermore recommends various types of user-interfaces for <br />supponing the various categories of needs. and provides estimates for the <br />required hardware, software, and labor and their associated costs. <br /> <br />Funhermore, a four year project plan was proposed. The following bullets <br />indicate milestones in the development of the CRDSS under the proposed plan, <br /> <br />Year 1 (FY 93-94) <br /> <br />. Continue database collection effon initiated under SB 92-87 for <br />inigated land, source of supply. diversion sttUcture location, and <br />crop type. <br /> <br />. Agree with the USBR on a schedule for data collection and <br />verification of irrigated land and enter into a MOU to formalize the <br />data collection process. <br /> <br />. Begin quality check of diversion records for the period 1975 to the <br />present for Divisions 4, 5, 6. and 7, <br /> <br />. Complete installation of basic hardware and software for storing <br />data collected at centralized location, <br /> <br />,I <br /> <br />. <br /> <br />Initiate detailed design and piloting of the system including a <br />deIailedimplementatioo plan. <br /> <br />Initiate database construction. <br /> <br />. <br /> <br />DAMES&MOORE/CADSWES-5 <br />