【正文】 Public Petroleum Data Model Association The ‘a(chǎn)lsorans’The Oracle ‘Synergy’ project (PDM Vol. 4 N176。 Geoshare 5), we counted six different organizations in the upstream technical and business space. Since that time, one is officially deceased, one moribund, one quiescent and another has ‘gone mercial’. Life in the standards space can be dangerous! But some dotorgs are alive and kicking whether they are conservative, reflecting well established best practices, or like the XML brigade, cutting edge and speculative. PDM reports on the survivors and the ‘a(chǎn)lsorans’. APITena Allain heads up the American Petroleum Institute’s (API) ComProServ task group which has been established to investigate standards for financial transactions. ComProServ standards support the specification and execution of plex products and services. Allain told PDM how ComProServ’s twenty member panies have e up with XMLbased standards for thirteen transactions, along with a mon library and schema.Cement jobsComProServ works to describe plex services such as well casing programs or cement jobs at a data and work order level. Such information will then be traded back and forth between operators, contractors and suppliers. ComProServ began by looking at work done in the chemical and electronic industries (RosettaNet) and plans to reuse this work.EDIThe API work has its roots in previous EDIbased standards, used for invoicing of drilling and geophysical services. The EDI standards are freeform text based so the move to XML allows for more structuring of information, more context and metadata to be included. According to Allain, most US majors use the PIDEX EDI standards for services and joint interest billing, but there was less takeup for these standards in the smaller independents. The move to XML may increase takeup for the smaller players.If it ain’t broke…The ‘migration’ of EDI based standards that are in everyday use to embryonic XML standards is a highly charged subject. As they say in Texas, ‘if it ain’t broke, don’t fix it.’ Allain said that EDI is still going strong. Many users do not even deploy the latest versions of the EDI standards. The advent of low cost bandwidth has significantly reduced the costs of EDI transactions. On the other hand, XML is not all that cheap – particularly when the costs of an Enterprise Application Integration platform such as Tibco is included in the calculation.EPSGBP’s Roger Lott heads up the European Petroleum Survey Group (EPSG). Lott told PDM how the EPSG started out as an informal meeting of senior survey personnel from the major North Sea operators. In the mid 1980’s, the group pooled internally piled data on worldwide coordinate systems, which grew into a significant resource, which was leveraged by POSC in the Epicentre data model.GeoTIFFEPSG standards have seen takeup outside of the oil and gas industry – particularly by satellite image specialist SPOT which rolled the POSC/EPSG work into the GeoTIFF standard for geodetically referenced bitmap imagery. The EPSG work has been further leveraged through the Open GIS Consortium, extending the EPSG’s work into the Geographical Information System munity at large. The EPSG data set is now a de facto worldwide reference and is available online as an Access data base from the EPSG website.ISO 19111The EPSG currently working on a new version of its specification which will bee th