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Subject: Re: [oslc-core] Meeting minutes 19-Feb-2015

If your drawings are relatively to the point (i.e. not governmental architecture framework diagrams) and you are not attempting to build a referentially consistent model repository then I can recommend yUml (see http://yuml.me/) as a convenient tool and DSL to sketch UML-like object-relational diagrams.

For example, taken from their site, try this URL

http://yuml.me/diagram/scruffy/class/[note: You can stick notes on diagrams too!{bg:cornsilk}],[Customer]<>1-orders 0..*>[Order], [Order]++*-*>[LineItem], [Order]-1>[DeliveryMethod], [Order]*-*>[Product], [Category]<->[Product], [DeliveryMethod]^[National], [DeliveryMethod]^[International]

If we are seeking a modeling tool then don’t settle for a drawing tool. That is like loaning money at negative interest rates: penny-wise and pound-foolish.

Lonnie VanZandt
Sent from Dropbox's Mailbox on Mac

On Thu, Feb 19, 2015 at 2:38 PM, Steve K Speicher <sspeiche@us.ibm.com> wrote:

Online: https://wiki.oasis-open.org/oslc-core/Meetings/Telecon2015.02.19

Agenda Minutes

chat transcript


Steve Speicher (IBM)


David Green (Tasktop Technologies)


David Green (Tasktop Technologies), Martin Pain (IBM), Nick Crossley (IBM), Samuel Padgett (IBM), Steve Speicher (IBM), Harish (Software AG)


Arnaud, Arthur, Ian, Martin S


  • Minutes of 5 February 2015 approved unanimously
  • Next TC call will be on 5 March 2015
  • other stuff
  • none
Roll Call

[07:03] Steve Speicher (IBM): Agenda: https://wiki.oasis-open.org/oslc-core/Meetings/Telecon2015.02.19

[07:06] Steve Speicher (IBM): Regrets: Arnaud, Arthur, Ian, Martin S

[07:06] Steve Speicher (IBM): Attendees: David Green (Tasktop Technologies) Martin Pain (IBM) Nick Crossley (IBM) Samuel Padgett (IBM) Steve Speicher (IBM)

[07:08] Harish (Software AG): Harish joining in.

[07:14] Steve Speicher (IBM): Attendees: + Harish (Software AG)

[07:08] David Green (Tasktop Technologies): David Green to scribe

[07:08] Steve Speicher (IBM): https://wiki.oasis-open.org/oslc-core/Meetings/Telecon2015.02.05

[07:10] David Green (Tasktop Technologies): Approval of previous meeting minutes: no objections, approved

Diagramming Tools

[07:14] David Green (Tasktop Technologies): Discussion about diagraming tools, no decision

Steve Speicher: Looking to find a good simple free diagramming tool for specification author and general maintenance. Often times spec authors use proprietary tool and generate PNG, makes are for others to update.

David Green: not really endorsing any tools, though draw.io is a basic service that has used before

Nick Crossley: has used ArgoUML as well

Spec Progress

[07:14] Steve Speicher (IBM): Discovery: http://tools.oasis-open.org/version-control/browse/wsvn/oslc-core/specs/discovery.html

[07:17] David Green (Tasktop Technologies): Link relation header: should we put in a known predicate? Client reading feed could add a triple that uses the standard predicate.

[07:18] Steve Speicher (IBM): PROPOSED: Use a standard predicate for feeding indexes based on link relationship type: <http://open-services.net/ns/core#creationType>;

[07:21] David Green (Tasktop Technologies): No objections to using header

[07:22] David Green (Tasktop Technologies): Section 5.3 of Discovery: reusing LDP term "Constrained By" that takes a container - link relation to URI that describes constraints.

[07:22] David Green (Tasktop Technologies): Could be resource shapes, could be HTML page, etc.

[07:22] David Green (Tasktop Technologies): proposal to use a new term rather than LDP term

[07:22] Steve Speicher (IBM): PROPOSED: define a shape-specific relationship type, such as oslc:creationShape

[07:30] Martin Pain (IBM): The LDP spec says: " LDP servers MUST publish any constraints on LDP clients ability to create or update LDPRs, by adding a Link header with an appropriate context URI, a link relation of http://www.w3.org/ns/ldp#constrainedBy, and a target URI identifying a set of constraints [RFC5988], to all responses to requests that fail due to violation of those constraints."

[07:30] Martin Pain (IBM): "The same Link header MAY be provided on other responses."

[07:32] Steve Speicher (IBM): Leaning towards using oslc:creationConstrainedBy rel type

[07:35] David Green (Tasktop Technologies): Delegated dialog: conformance section largely the same, doesn't mention window name

[07:36] David Green (Tasktop Technologies): requesting feedback: cardinality, required fields

[07:36] David Green (Tasktop Technologies): can we reuse same shape with statement "server must not reject prefill request because it's missing required fields", or change shape so that no fields are required

[07:37] David Green (Tasktop Technologies): Steve: advise on not rejecting request approach

[07:37] David Green (Tasktop Technologies): benefit with shape reuse

[07:39] Martin Pain (IBM): https://wiki.oasis-open.org/oslc-core/DelegatedUIUseCases

[07:43] David Green (Tasktop Technologies): request for reviewers

[07:44] David Green (Tasktop Technologies): Samuel to assist

[07:46] David Green (Tasktop Technologies): Common vocabulary: review feedback received

[07:46] Steve Speicher (IBM): http://tools.oasis-open.org/version-control/browse/wsvn/oslc-core/specs/common-vocab.html

[07:59] David Green (Tasktop Technologies): Martin proposing to contribute ...(what?)

[08:01] Martin Pain (IBM): Martin will contribute Actions 2.0 as the basis for Actions 3.0

[08:01] David Green (Tasktop Technologies): Thanks Martin

[08:01] Martin Pain (IBM): Martin also noted that the Automatino TC will be meeting to discuss whether & how to proceed with Automation 3.0

Meeting Adjourned

Steve Speicher
IBM Rational Software
OSLC - Lifecycle integration inspired by the web ->

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