2 DMS-Data Manager 



Data Manager Overview 



The DMS is intended to assist those responsible for inlet and channel design 

 and maintenance in assessing both the root causes of shoaling and the implica- 

 tions of proposed changes to such systems. One important component of the 

 DMS is the Data Manager, a graphically based tool that allows the user to view 

 all relevant data representing conditions within the area of concern. This 

 software tool brings modern data visualization technology to the user's desktop 

 — as such, it leverages recent advances in Geographic Information Systems 

 (GIS). 



The Data Manager is a customized extension of the commercially available 

 GIS software package Arc View from Environmental Systems Research Institute 

 (ESRI), Redlands, California. Taylor Engineering, Inc., of Jacksonville, Florida, 

 in conjunction with the CHL is developing the Data Manager. In combination 

 with the Data Manager User's Guide (presently under development), the software 

 assumes the user has minimal experience with GIS systems, and as such, 

 development has proceeded with the end user in mind. Numerous wizards aid 

 the user during assembly of a comprehensive project database. Data Manager 

 leverages the flexibility of data formats available for use within Arc View to 

 minimize format conversions and simplify the assembly process. Additionally, 

 the Data Manager will incorporate several analysis tools to allow the user to 

 perform volumetric comparisons to address what-if questions. The Data 

 Manager offers features that could become an integral part of the daily routine of 

 those who maintain the country's waterways. 



Report generation is the main product of the Data Manager. Users can 

 produce consistently formatted reports from their data via the reporting option 

 available. This option allows examination of past dredging records in a tabular 

 and/or graphical format to aid in analysis and review of shoaling areas. 

 Examples of such reports may include anticipated costs of upcoming projects, 

 daily progress reports of active projects, summary statistics (i.e., total volumes, 

 annual volumes) for user-defined areas, plus several other reports. 



Software requirements 



The DMS-Data Manager works on the Windows NT 4.0 operating system 

 and in conjunction with the latest release of Arc View (presently, Version 3.1) — 

 extending the base functionality of the Arc View environment. Support of other 



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