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. EXHIBIT A SECTION 8 SCOPE OF SERVICES . . This section describes the services the project team proposes to provide to CWCB, The proposed problem-centered design/cognitive walk-through evaluation technique/methodology to be employed in the study is presented. Lastly, the specific work tasks and the products of each task are described. Evaluation Methodology The project team will employ a problem-centered design/cognitive walk-through approach for the CRDSS feasibility srudy and conceptual design. The methodology, originally developed and published by Clayton Lewis, has been successfully used in a number of studies and system designs by CADSWES, which include the TV A needs assessment study, the Yuma study, RSS/MODM, and the South Platte Water Rights System. The problem-centered design/cognitive walk-through procedure is an iterative process that converges to a detailed, well documented conceptual design (or desig'lls) or a system. . The methodology begins with a series of "brainstorming" sessions involving potential system users in the client organization. The purpose or these sessions is to identify and "walk-through" the typical problems confronted by people in the user organization. The documentation of each problem includes at least two characteristics. The first is a description of the decision that must be made to solve the problem, The second is the definition of a series of tasks that must be performed to make the decision. For the problem definition step to be successful, it is necessary that a mix of people from the client organization extensively participate so that the problem specifications will be sufficiently rich to caprure the essence of the organization's decision needs, After the initial list or problems is compiled. each problem description is reviewed by the client organization to ensure that the problem descriptions are representative and correct. The problem descriptions are rerined by walking-through them until the client organization feels they are satisfactory. Although the methodology is done at the minute detail level. the designer keeps an eye toward drawing generalizations from the specifics of each problem. Experience has shown that the process converges rapidly in that each new problem requires only marginal additions to the tasks needed to solve the problem. The problem descriptions serve as one of the primary sources of documentation used in the remainder of the feasibility study/conceptual design. From the problem descriptions, a detinition of the system needs is created. Specifically, a well developed set of problem descriptions provides invaluable information such as who makes which decisions, who is impacted by the decisions, where the decisions are made and impacts felt. what are the data used in making the decision, where do the data exist, what models are needed in making the decision. where do the models exist, what . -1-