The Neolithic tomb of Gavrinis is famous for its rich and complex engraved art that has inspired a large number of interpretative studies. However, all of these are based on unsatisfactory drawings. This article descr...
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The Neolithic tomb of Gavrinis is famous for its rich and complex engraved art that has inspired a large number of interpretative studies. However, all of these are based on unsatisfactory drawings. This article describes the methodological results of a new project for recording the Gavrinis engravings that combines 3D laser and 2D photographic techniques. Laser scanning not only provides accurate contextual information such as the stone relief and architectural setting in which the art is found. Specially designed processing of point clouds also makes it possible to highlight the contours of the pecked motifs and to record them directly from the 3D model of the decorated stones. This can be further improved by photography using oblique lighting and image processing techniques in order to obtain more detailed recordings of the motifs as well as insights into their chronological relationships. In the unusual case of barely visible engravings made with very slight peckmarks, experimental application of the DStretch colour detection programme has been unexpectedly successful. A comparison of all these results shows that laser and photographic techniques have different strengths and weaknesses that complement each other. Thus, combined use of these techniques within a single methodological process produces innovative and comprehensive documentation of Neolithic tomb art. (C) 2014 Elsevier Ltd. All rights reserved.
Effective system documentation is a crucial part of a management information system. Yet, it is common to witness users struggling with a system that has incomplete or lost documentation. This is a result of systems...
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Effective system documentation is a crucial part of a management information system. Yet, it is common to witness users struggling with a system that has incomplete or lost documentation. This is a result of systems analysts: 1. feeling that there is no time even to begin documenting, 2. preferring to do more desirable or rewarding tasks, or 3. simply being concerned that their documentation of an inherited system might be incorrect. To overcome these barriers to good documentation, FOLKLORE was developed from methods used in gathering traditional folklore and is now implemented at the University of Nebraska-Lincoln. The model for FOLKLORE, its costs, and examples from FOLKLORE documents are presented. FOLKLORE has 3 advantages: 1. It allows documentation to evolve. 2. Users and analysts feel that documentation is easier. 3. Those concerned about documentation can contribute without fear of being found incorrect. FOLKLORE is successful in that it was accepted and chosen by users and other systems analysts in a relatively short time.
This paper concerns new techniques for making requirements specifications precise, concise, unambiguous, and easy to check for completeness and consistency. The techniques are well-suited for complex real-time softwar...
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This paper concerns new techniques for making requirements specifications precise, concise, unambiguous, and easy to check for completeness and consistency. The techniques are well-suited for complex real-time software systems; they were developed to document the requirements of existing flight software for the Navy's A-7 aircraft. The paper outlines the information that belongs in a requirements document and discusses the objectives behind the techniques. Each technique is described and illustrated with examples from the A-7 document. The purpose of the paper is to introduce the A-7 document as a model of a disciplined approach to requirements specification; the document is available to anyone who wishes to see a fully worked-out example of the approach.
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