Changes between Version 14 and Version 15 of ISO15926Primer_ShortHistory

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Timestamp:
11/25/11 21:09:10 (12 years ago)
Author:
gordonrachar (IP: 198.161.174.222)
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  • ISO15926Primer_ShortHistory

    v14 v15  
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    66 
    7 In the ''Introduction to ISO 15926'' we follow the development of project information exchange from the advent of Computer Aided Drafting (CAD) to the present. We look at some of the detours that were taken along the way and show how the idea of a reference data library (RDL), Part 4, and a separate data model, Part 2, came about. We do not intend to make readers into amateur historians, but a brief look at where ISO 15926 comes from will put the standard into a better perspective 
     7In ''An Introduction to ISO 15926'' we follow the development of project information exchange from the advent of Computer Aided Drafting (CAD) to the present. We look at some of the detours that were taken along the way and show how the idea of a reference data library (RDL), Part 4, and a separate data model, Part 2, came about. We do not intend to make readers into amateur historians, but a brief look at where ISO 15926 comes from will put the standard into a better perspective 
    88 
    99For a summary here we will divide the time line into four periods.  
     
    3333By the early 1990s the thinking had changed from the large, comprehensive data model of STEP into a simpler, generic data model with a large part of the intelligence pushed into a Reference Data Library (RDL). With a common set of definitions the data model would not be as cumbersome. 
    3434 
    35 This approach was used in the heat of battle on several world-scale projects in the mid to late 1990s. From this, the data model became ISO 15926 Part 2, and the Reference Data Library became ISO 15926 Part 4. 
     35This approach was used on several world-scale projects in the mid to late 1990s. From this, the data model became ISO 15926 Part 2, and the Reference Data Library became ISO 15926 Part 4. 
    3636 
    3737The RDL of Part 4 matured fairly quickly, becoming the basis of what we might call a small "Plant Model Exchange" industry. For a few years this was the only real-world use of ISO 15926, so this approach became synonymous with ISO 15926. 
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