Towards a Format Registry for Engineering Data

2007 ◽  
Author(s):  
Michael J. Grauer ◽  
Iris K. Howley ◽  
Joseph B. Kopena ◽  
William C. Regli
Keyword(s):  
Engineering Design ◽  
Reference Model ◽  
Digital Data ◽  
File Format ◽  
Design Data ◽  
Digital Archiving ◽  
File Formats ◽  
Manufactured Products ◽  
Archival Systems ◽  
Description Framework

There has been a great deal of interest recently in the problem of long term archiving of digital data. This is especially so in engineering design, where the CAD software tools evolve rapidly but the manufactured products themselves have much longer lifetimes whose support requires archived design data in a usable form. The ISO Open Archival Information Systems (OAIS) Reference Model is a widely used standard for digital archiving, with an essential piece of this model being a file format registry. A file format registry is a system for housing information about file formats that allows for correct interpretation, rendering, storage, and translation of digital files. Currently there exists no file format registry specifically for CAD file formats. This paper explains the purpose of a file format registry for CAD in the greater context of digital archiving, and then presents our approach to creating a CAD file format registry using the Resource Description Framework (RDF) language of the Semantic Web. By creating our file format registry in RDF, we allow archival systems to perform automated reasoning on the stored files. We hope that this paper will increase awareness of this element of engineering design repositories in the research community of this conference.

CAD Archives Based on OAIS

2006 ◽  
Author(s):  
Joseph B. Kopena ◽  
Joshua Shaffer ◽  
William C. Regli
Keyword(s):  
Manufacturing Industry ◽  
Reference Model ◽  
Digital Design ◽  
Digital Data ◽  
Design Knowledge ◽  
Digital Archiving ◽  
Engineering Research ◽  
Research Organizations ◽  
Ongoing Work

Within the past few years, there has been a steady, substantial growth of interest in “long-term” archiving of digital data. This problem is particularly acute in many branches of engineering design, where cycles of technological obsolescence in supporting tools happen much more rapidly than those of designed products. Capturing and preserving design knowledge through these cycles is a major challenge that has come to be recognized by many government, industry, and research organizations. The ability to do so has important operational, efficiency, and legal ramifications for the manufacturing industry and its customers. This paper describes this problem, presenting examples of both why it must be addressed and why it is a challenge. In particular it relates preservation of engineering data to digital archiving efforts in other domains as well as ongoing work within the engineering research community on design repositories. As is shown, long term archiving of digital design knowledge draws upon both but possesses its own unique issues. Much of this discussion is couched within the language of the ISO Open Archival Information Systems (OAIS) Reference Model, including a mapping from an existing significant design repository into the OAIS model. In this way, it is hoped that this paper will widen the discussion on digital archiving within the community of this conference as well as help connect to research in other areas.

XLIFF Mapping to RDF

2012 ◽  
Vol 2 ◽  
pp. 66-96
Author(s):  
Dimitra Anastasiou
Keyword(s):  
Resource Description Framework ◽  
Symbiotic Relationship ◽  
File Format ◽  
Metadata Standard ◽  
Metadata Model ◽  
File Formats ◽  
Description Framework ◽  
Conversion Tool ◽  
Resource Description ◽  
The Web

This paper discusses the lack of interoperability between file formats, standards, and applications. We suggest a mapping from the ‘XML Localisation Interchange File Format’ (XLIFF) into the ‘Resource Description Framework’ (RDF) in order to enhance interoperability between a metadata standard and a metadata model. Three use cases are provided (a minimal, a modular and one with alternative translations); each one with a source (XLIFF), an output (RDF), and an ‘Extensible Stylesheet Language Transformations’ (XSLT) file. We explain in detail how the XLIFF file elements and attributes can be matched by the XSLT. Believing in the symbiotic relationship for a more effective way of presenting multilingual content on the Web, we developed a conversion tool to translate from XLIFF into RDF in order to automate the process. Our contribution is to translate XLIFF into RDF in order to facilitate ontology localisation, i.e. localise monolingual ontologies and populate Semantic Web approaches with localisation-related metadata.

scholarly journals Archiving Archaeological Research Data - On Requirements, Objectives and First Experiences from a German Respectively Saxon Point of View

2017 ◽  
Vol 1 (2) ◽  
pp. 165-181
Author(s):  
Reiner Göldner
Keyword(s):  
Research Data ◽  
Point Of View ◽  
Digital Data ◽  
Archaeological Research ◽  
Digital Information ◽  
Preservation Planning ◽  
Digital Archiving ◽  
Open Archival Information System ◽  
File Formats ◽  
And Function

Preserving digital data over long times is an ambitious task. While most analogue documents are best stored without touching them, digital data need permanent care and curation. Regarding some differences between analogue and digital data - lifecycle, complexity, functionality and so on - it can be realized, that digital archiving is a new challenge.This paper will deal with requirements and objectives on archiving archaeological research data, as discussed in a working group of the Association of State Archaeologists in Germany (Verband der Landesarchäologen in Deutschland – VLA). Interesting themes of that discussions were “Archive Objectives”, “Worthiness of Archiving”, “Suitability of Archiving” and “Future Use Scenarios”. This paper will also deal with first experiences in building up a digital archive for archaeological research data in Saxony. This archive follows principles of “Open Archival Information System” (OAIS). It is based on professional software that has to be adapted to the special requirements of archaeological data like e.g. excavation documentation. OAIS defines six complex functions to be performed, e.g. data management and preservation planning.  Preservation strategies are presented to give an idea on how to preserve content and function of archive material while systems are changing over time. This is an alternative to the idea, knowing file formats will solve all preservation problems.Archiving is the most intensive and most expensive way to store data. But aren’t there any alternatives? This paper will address some small steps leading towards a proper archiving without using large budgets. Going such steps will help to reduce the risk of losing important digital information. Going these steps will also bridge the gap until proper preservation tools will be available at a reasonable price.This article may be helpful for archaeologists that are about to build up an archive to preserve digital data for long terms. The presented concept of preservation strategies may be of interest for specialists on digital archiving.

Research on the Three-Dimensional Displaying of STL ASCII and Binary File

2014 ◽  
Vol 940 ◽  
pp. 433-436 ◽  
Author(s):  
Ying Zhang ◽  
Xin Shi
Keyword(s):  
Detailed Analysis ◽  
Programming Language ◽  
Coordinate Transformation ◽  
Graphical Representation ◽  
Three Dimensional ◽  
File Format ◽  
Binary File ◽  
Stl File ◽  
File Formats ◽  
Three Dimensional Display

Based on the detailed analysis of the STL file format, VC++ 6.0 programming language was used to extract the STL ASCII and binary file information, at the same time, using the OpenGL triangle drawing technology for graphical representation of the STL file, with rendering functions such as material, coordinate transformation, lighting, et al, finally realizing the loading and three-dimensional display of STL ASCII and binary file formats.

On Object-Oriented Databases, Materialized Views, and Concurrent Engineering

1991 ◽  
Author(s):  
Martin Hardwick ◽  
Blair R. Downie
Keyword(s):  
Concurrent Engineering ◽  
Object Oriented ◽  
Materialized Views ◽  
Design Tools ◽  
Design Data ◽  
Multiple Inheritance ◽  
File Formats ◽  
Definition Of ◽  
Application Specific ◽  
Object Oriented Database

Abstract Concurrent engineering seeks to reduce the length of the design life cycle by allowing multiple engineers to work on a design concurrently using their different design tools. A major stumbling block in achieving this goal is that most design tools use different file formats. Emerging standards such as STEP/PDES/EXPRESS reduce this barrier, but conformance to standards is not enough. One reason design tools have different file formats is because each tool requires a different perspective or view of the design. Engineering databases must provide designers with the ability to define application specific views of design data, and the ability to propagate changes among those related views. In this paper, we examine how an object-oriented database system can support the definition of application views using a class hierarchy and multiple inheritance.

Digital File Formats for Digital Preservation

2018 ◽  
pp. 218-233
Author(s):  
Mayank Yuvaraj
Keyword(s):  
Digital Libraries ◽  
Digital Preservation ◽  
Institutional Repository ◽  
File Format ◽  
Institutional Repositories ◽  
File Formats ◽  
Digital File ◽  
The Common ◽  
Common Understanding

During the course of planning an institutional repository, digital library collections or digital preservation service it is inevitable to draft file format policies in order to ensure long term digital preservation, its accessibility and compatibility. Sincere efforts have been made to encourage the adoption of standard formats yet the digital preservation policies vary from library to library. The present paper is based against this background to present the digital preservation community with a common understanding of the common file formats used in the digital libraries or institutional repositories. The paper discusses both open and proprietary file formats for several media.

Engineering Anthropometry

1976 ◽  
Vol 20 (16) ◽  
pp. 365-367 ◽  
Author(s):  
K. H. E. Kroemer
Keyword(s):  
Engineering Design ◽  
Human Subjects ◽  
Measurement Methods ◽  
Physical Measurement ◽  
Design Standards ◽  
Manufactured Products ◽  
Engineering Drawings

“Engineering anthropometry is the application of scientific physical measurement methods to human subjects for the development of engineering design standards and specific requirements and for evaluation of engineering drawings, mock-ups, and manufactured products for the purpose of assuring suitability of these products for the intended user population.” (page 6 in Roebuck, Kroemer & Thomson 1975)

Engineering Study of an Oil Gellation Technique to Control Spills from Distressed Tankers

1973 ◽  
Vol 1973 (1) ◽  
pp. 247-253
Author(s):  
Arnold M. Goldstein ◽  
Robert M. Koros ◽  
Barry L. Tarmy
Keyword(s):  
Crude Oil ◽  
Engineering Design ◽  
Environmental Protection Agency ◽  
Large Scale ◽  
Organic Liquid ◽  
Mixing Time ◽  
Gel Strength ◽  
Scale Model ◽  
Experimental Unit ◽  
Design Data

ABSTRACT Crude oil gellation is a potentially attractive technique for minimizing or preventing the loss of oil from a distressed tanker by converting the liquid oil into a rigid solid. The procedure involves the chemical reaction of two organic liquid gelling agents dissolved in the oil to form a gelant compound which entraps the oil. The resulting gel would float as a coherent mass if it were extruded from a ship or escape as a result of tanker break-up. This paper presents the results of a program undertaken to demonstrate in situ gellation on a large scale, and to gather engineering design information for this technique. The work was jointly funded in part by the U.S. Environmental Protection Agency. Engineering design data gathered during this study include the effect of mixing energy, mixing time, gellation time and temperature on gel strength. In addition, rheological properties of the gel were examined to relate gel strength to the maximum fluid static head that may be maintained without flow through a certain hull hole. Details of a gellation test with 500 bbl of South Louisiana crude oil will be discussed. The experimental unit was 7′ × 14′ × 30′ high and represented the region between two transverse frames in a wing compartment of a 21,000 dwt tanker. The design criteria for the mixing equipment required for gellation was validated by tracer mixing studies in both the 500 bbl tank and a one-seventh scale model of the larger unit. This work forms the basis for the further efforts on equipment development, selection and evaluation required before this technique can be used in the field.

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