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UoM_Ontology_Standard draft deliverable preview session - Thu 22-Oct-2009     (1)

This is a preparation session for our upcoming 30-October-2009 workshop. We expect to preview the draft deliverables that the various champions have put together so far, surface specific issues that may be hampering the drafting work, and do some preliminary alignment, in preparation for a more in-depth discussion during the 30-Oct-2009 full-day workshop.     (1A)

  • Session Chair: Dr. FrankOlken (NSF) & Mr. EdwardBarkmeyer (NIST)     (1B)

Archives     (1D)

  • Shared-screen support (VNC session), if applicable, will be started 5 minutes before the call at:     (1E5)
    • view-only password: "ontolog"     (1E5A)
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  • Discussions and Q & A:     (1E6)
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  • For those who cannot join us, or who have further questions or remarks on the topic, please post them to the [ uom-ontology-std ] listserv so that everyone in the community can benefit from the discourse.     (1E7)
  • Please note that this session will be recorded, and the audio archive, as well as all proceeedings are expected to be made available as open content to our community membership and the public at-large under our prevailing open IPR policy.     (1E11)

Resources     (1F)

Attendees     (1H)

Agenda & Proceedings     (1I)

1. Opening by session Chair -- Frank Olken / Ed Barkmeyer     (1I1A)

3. Q & A and Open Discussion (All) -- please refer to process above     (1I1C)

4. Action Items and Conclusion -- Frank Olken / Ed Barkmeyer     (1I1D)

Proceedings     (1J)

Please refer to the archives above     (1J1)

IM Chat Transcript captured during the session    (1J2)

Frank Olken: I expect we will use the same teleconferencing facilities as     (1J2A)

usual on Oct. 30. Our audio tech will call into the teleconference     (1J2B)

Peter P. Yim: great, ... thanks, Frank     (1J2C)

Peter P. Yim: Howard: note: maintenance agency ... registration authority     (1J2D)

Frank Olken: I think we want a maintenance agency (which has     (1J2E)

discretionary authority to approve new derived units).     (1J2F)

Frank Olken: I think the maintenance agency should be something like     (1J2G)

Pat Hayes: 1. Should we have a quantity model? Seems to be a majority     (1J2I)

agreeing that this is needed. 2. Explicit named units and Q. kinds? We     (1J2J)

can't do them all, how many will we do and what do we do about the     (1J2K)

others? Eg how do we relate to the UCM list? [Peter: maintenance issue     (1J2L)

arises when normative standard is formal. Who adds items to     (1J2M)

namespace/base?][Ed: yes, needs an authority or tool which can handle     (1J2N)

this. Not impossible and needs to be done. Certainly a scope     (1J2O)

issue.][Frank: exist 2 things. Extensions which are derived units,     (1J2P)

should be automatic. But also, new named units like 'watts'.] <<much     (1J2Q)

discussion about mechanisms for administration and registration, etc..     (1J2R)

ISO and OASIS both have various mechanisms...>>     (1J2S)

Pat Hayes: Should have said, I was scribing Ed's speech above.     (1J2T)

Pat Hayes: Ed: quantity kinds more promiscuous than units. Do we needs     (1J2V)

  • kinds* of quantity kinds? Need to choose a level to stop publishing,     (1J2W)

this is unbounded in extent.     (1J2X)

Joel Bender: Is 'scale' a 'derived unit'?"     (1J2Y)

Pat Hayes: Ed: scales. Email discussions went nowhere. Do we have scales     (1J2Z)

as part of the ontology? Unit conversions also an issue (4 so far).     (1J2AA)

Other issues further out: uncertainty, tolerance. But these are v.     (1J2AB)

complicated to do 'propoerly'. Do we need to handle these at all, if     (1J2AC)

only crudely? Chips (eg) does, but its about measurement. Do we want to     (1J2AD)

go this way?     (1J2AE)

Pat Hayes: Joel: I don't think so.     (1J2AF)

Pat Hayes: Ed: measurement is big area, need to bring other organizations     (1J2AG)

in if we go there, eg UK NPL. Probably can't do it all, but also not     (1J2AH)

completely omit.     (1J2AI)

Pat Hayes: Howard: need to consider target market for our ontology, to     (1J2AJ)

focus discussion. XXphilosophy..     (1J2AK)

Pat Hayes: Ed: priorities. We need to have a time limit, so some things     (1J2AL)

are prunable. Final point: microtheories: not all extensions are     (1J2AM)

mutually compatible, possibly. Up to us to provde guidelines for this     (1J2AN)

situation.     (1J2AO)

Steve Ray: Sorry, had to run to another meeting...     (1J2AQ)

Peter P. Yim: Ed will make an attempt to invite the QUDV leads,     (1J2AR)

Roger Burkhart (John Deere) & Nicolas Rouquette JPL) to join us on Oct-30     (1J2AS)

Ed Barkmeyer: Scope: assume quantity, quantity kind, SI named units,     (1J2AT)

scales, conversion are in, measurement and uncertainty, specification     (1J2AU)

and tolerance are less clear, it depends on our target audience and use,     (1J2AV)

available expertise and time.     (1J2AW)

Ed Barkmeyer: Big issue is extension: how to deal with the infinite list     (1J2AX)

of quantity kinds and the very large list of derived units.     (1J2AY)

Ed Barkmeyer: Pat: UML may be all that many will understand, OWL will be     (1J2AZ)

definitive for the Sem Web folk, CLIF is really the hard form for people     (1J2AAA)

committed to axiomatic definition and FOL reasoners.     (1J2AAB)

Ed Barkmeyer: Pat: there are other reasons to use CLIF -- it allows     (1J2AAC)

simpler consistent formulations of some complex notions     (1J2AAD)

Ed Barkmeyer: Frank and Pat discussed concerns about the arithmetic, use     (1J2AAE)

of functions like sine or square root. Pat: we want to stay away from     (1J2AAF)

floating point and arithmetic error.     (1J2AAG)

Ed Barkmeyer: The OWL folk have defined the datatype to be xsd:double,     (1J2AAH)

i.e., IEEE 754 numbers.     (1J2AAI)

Ed Barkmeyer: Pat: we want to assume mathematically exact numbers and     (1J2AAJ)

avoid computational issues. Yes, actual uses may have some problems if     (1J2AAK)

the values and computations exercise the fringes of the computational     (1J2AAL)

behaviors. (Ed: the common problem is just that decimal fractions (the     (1J2AAM)

heart of metric) don't have exact binary renditions.)     (1J2AAN)

Peter P. Yim: Howard: sending our draft TC charter to Jamie and inviting him     (1J2AAO)

to do a 5 min. OASIS-101     (1J2AAP)

Peter P. Yim: @Howard - please consider the proposal of "QUoM" (as an     (1J2AAQ)

alternative to "QUOMOS")     (1J2AAR)

Peter P. Yim: Joel: workplan slides -     (1J2AAS)

Pat Hayes: I also have to leave for another call. Peter, email me if you     (1J2AAU)

have any, er, tickets for me.     (1J2AAV)

Peter P. Yim: ref. getting buy-in from the standard bearers (e.g. BIPM) -     (1J2AAZ)

Steve & Howard making advances on those fronts; Ed feels we will be more     (1J2AAAA)

ready when we have a draft standard; Pat suggest using the now popular     (1J2AAAB)

notion of "Linked Data" to position ourselves     (1J2AAAC)

Peter P. Yim: great meeting, thanks, everyone     (1J2AAAD)

-- session ended: 2009.10.22-12:27pm PDT --     (1J2AAAE)

  • Further Question & Remarks:     (1J2AAAF)
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For the record ...     (1J2AAAG)

How To Join (while the session is in progress)     (1K)

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