Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/10234
Title: Basic structured documentation to the Corps of Engineers National Dam Inventory Data Update Program based on the E-R Diagram and Structure Chart
Authors: Computer Applications in Geotechnical Engineering Project (U.S.)
Silva, Alberto Tavares da.
Keywords: Dam inventory
Dam safety
Databases
Entity-relationship diagram
Structure chart
Dam safety
Publisher: Geotechnical Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; GL-95-3.
Description: Miscellaneous Paper
Abstract: The Corps of Engineers National Dam Inventory Data Update Program (NDI) is a database program developed through the Computer Applications in Geotechnical Engineering Program. The NDI is used to store and retrieve a variety of information pertaining to dams in which the Corps of Engineers has an interest. This report describes the purpose of the NDI and proposes a restructuring for the NDI to provide greater efficiency and ease of maintenance. Two basic tools for program development are described: the Entity-relationship (E-R) Diagram and the Structure Chart. Examples of the use of the E-R Diagram and the Structure Chart are presented in the report and examples using modules from the NDI illustrate their use in program development. The report provides a structured documentation and describes some improvements to the NDI based on the use of these tools. A life cycle for structured program development, including maintenance, is suggested and comparisons between the original and restructured versions of the NDI are presented. The proposed modifications allow programmers to quickly grasp the structure of the NDI and initiate improvements or modifications as necessary. Other advantages of the proposed modifications include faster operation and easier maintenance.
URI: http://hdl.handle.net/11681/10234
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