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<br />2.0 SPWRMS Design <br /> <br />The server application is currently installed on two UNIX workstations -- <br />both DbServer and Hydro in Denver. The SPWRMS centralized lnformix <br />database also resides in Denver. Remote access to the SPWRMS application <br />and central database from MoreRain in Greeley is currently handled via <br />remote X-graphics display. However, because of the delayed response time <br />for the spatial map display, this strategy is not ideal. When lnformix INET <br />becomes available on MoreRain, the SPWRMS application will then be <br />installed locally on MoreRain, greatly improving graphics delays. <br /> <br />2.2 The Database <br /> <br />For the SPWRMS user, the important thing to know <br />about the application database is that all information <br />transmitted and received by the server is stored in a cen- <br />tral database shared by all SPWRMS users, including <br />remote PC-SPWRMS users. . <br /> <br />2.2.1 What is a database? <br /> <br />A database is a logically coherent collection of data. In the case of <br />SPWRMS, the database referred to is an Informix database which <br />resides in Denver at the State Engineer's Office (SEO). The database <br />consists of information which is organized and indexed for efficient <br />computer access. All SPWRMS users access the same database, <br />insuring that each user's view of the river is the same. <br /> <br />The internal organization of the SPWRMS database should not con- <br />cern the application user. To understand the workings of SPWRMS, <br />one need only know that the application retrieves information from <br />the database by a 'query' and 'archives' new information to the data- <br />base for subsequent queries. <br /> <br />2.2.2 Where does the database inforntation come from? <br /> <br />Database information comes from a variety of sources. Among these <br />are USGS topographic maps (for spatial attributes), and court records <br />(for water rights information). <br /> <br />Most of the information in the database has at some point been manu- <br />ally entered into the computer, although gaged streamftows in the <br />South Plane Basin enter automatically into the database via satellite <br />transmission. <br /> <br />For detailed information on the source and development of the <br />SPWRMS database, see the SPWRMS Database Manual. <br />