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Subject: Re: [plcs] Global rules in the AP
I tried but couldn't resist replying... Consider the following two cases: 1. I want to communicate with system/organisation, and do that by specifying a DEX + whatever RDL data is appropriate. The DEX enforces that all id_ass have organistions. Fine. 2. I am building an in-house system by implementing the PLCS model or a subset thereof. Since it is in-house for some specific purpose the organisation is implicit and can be added when exporting DEX data. However, if there is a global rule enforcing org, I will have to either implement useless stuff or intentionally break the PLCS model for my implementation. Not so good. Once again: rules in capabilities/DEXes are good, even a mandated feature. Rules and restrictions in the PLCS model is not a good idea. Please consider that there may be future potential users of PLCS with a different world-view, we should not exclude them at this point. Instead, let them come up with a new set of DEXes. Remember that most of the PLCS stuff right now is defense related, how about power plants (nuclear and others), fleets of trucks for transportation, shipping, and more esoteric stuff such as considering insurance policies as items and the individual insurances as individuals. They have to be maintained for decades, after all, and have a complex structure... Regards, Per-Åke Les Debenham wrote: > Rob, > > The 2 example rules you give are exectly right. I reserve judgement on > the (many) unspoken global rules that may ensue. > > LesD > > -----Original Message----- > *From:* Rob Bodington [mailto:rob.bodington@eurostep.com] > *Sent:* 28 October 2004 08:38 > *To:* plcs@lists.oasis-open.org > *Subject:* [plcs] Global rules in the AP > > Hi > > One of the issues in the recent debate about NSN and identification > was the need for global rules. > > > > AP239 had several major technical ballot comments against it > complaining about the lack of global rules. > > This was one of the reasons for Germany initially voting NO. > > > > One of the ballot comments was about global rules enforcing what is > already documented in the mapping tables. This has been resolved. > > > > The other comment is about the lack of global rules in general. > > > > We have also had a discussion about the need to have some global > rules in capabilities. > > > > I agree with Per-Ake, think that we need to be very careful about > adding global rules as they can restrict the use of the AP. > > > > Having said that, I think that there are a few areas where we will > benefit from global rules in the AP as opposed to the DEXs/capabilities. > > > > E.g. > > > > Any identification assignment must have an organization assigned to it. > > > > Any product_as_individual, product_as_realised, product_as_planned, > part, part_version (note the model has changed!!!) must have at > least one identification assigned to it. > > > > Note, I am not enforcing any classification or anything, just > enforcing an instantiation template. > > > > What do people think to having such global rules in the AP as > opposed to the capabilities? > > One reason at least is keeping the bargain on changing the German No > vote to a Yes. > > > > Are there any other instantiation templates that we want to enforce? > > > > Regards > Rob > > ------------------------------------------- > Rob Bodington > Eurostep Limited > Web Page: http://www.eurostep.com http://www.share-a-space.com > Email: Rob.Bodington@eurostep.com > Phone: +44 (0)1454 270030 > Mobile: +44 (0)7796 176 401 > > > > > > *DISCLAIMER: ***SECURITY LABEL: NOT PROTECTIVELY MARKED*** The > information in this message is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this > message by anyone else is unauthorised. If you are not the intended > recipient, any disclosure, copying, or distribution of the message, or > any action or omission taken by you in reliance on it, is prohibited and > may be unlawful. Please immediately contact the sender if you have > received this message in error. This e-mail originates from LSC Group. > Registered in England & Wales No 2275471 Registered Office: Devonport > Royal Dockyard, Devonport, Plymouth, PL1 4SG * > > > -- ======================================================== Per-Åke Ling email: per-ake.ling_AT_eurostep.com Eurostep AB mobile: +46 709 566 490 Vasagatan 38 http://www.eurostep.com SE-111 20 Stockholm
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