[Fiware-i2nd] USDL and Modelling in FI-WARE

[Leidig, Torsten]

Dear all,

FI-WARE WP3 uses yEd to draw BPMN Collaboration diagrams (not UML). ´We basically sketched two end-to-end usage scenarios (themes).  One is about an aggregator creating a composite service and publish that to a store. The second one is from the consumer perspective, who wants to discover buy and use a service. These diagrams have nothing to do with USDL.

For the technical interface of a service USDL just links to a technical service description (e.g. WSDL) and does some mapping of high-level service interactions to the technical interface. No dedicated tooling is provided to actually describe WSDL services. USDL tries to be agnostic according the concrete service technology (REST, SOAP, WSDL, ATOM, etc.).

USDL is not for software modelling.

Best regards,
Torsten


Dr. Torsten Leidig
SAP Research Center CEC Karlsruhe
SAP AG
Vincenz-Prießnitz-Str. 1
76131 Karlsruhe
T +49 6227 7 52535
F +49 6227 78 29753
E torsten.leidig at sap.com
http://www.sap.com
Pflichtangaben/Mandatory Disclosure Statements: http://www.sap.com/company/legal/impressum.epx
Diese E-Mail kann Betriebs- oder Geschäftsgeheimnisse oder sonstige vertrauliche Informationen enthalten. Sollten Sie diese E-Mail irrtümlich erhalten haben, ist Ihnen eine Kenntnisnahme des Inhalts, eine Vervielfältigung oder Weitergabe der E-Mail ausdrücklich untersagt. Bitte benachrichtigen Sie uns und vernichten Sie die empfangene E-Mail. Vielen Dank.

This e-mail may contain trade secrets or privileged, undisclosed, or otherwise confidential information. If you have received this e-mail in error, you are hereby notified that any review, copying, or distribution of it is strictly prohibited. Please inform us immediately and destroy the original transmittal. Thank you for your cooperation.



From: Bohnert, Thomas Michael
Sent: Mittwoch, 12. Oktober 2011 16:10
To: Marco Castrucci; fiware-i2nd at lists.fi-ware.eu; Kadner, Kay
Cc: Heller, Markus; Leidig, Torsten; garino pierangelo
Subject: RE: [Fiware-i2nd] USDL and Modelling in FI-WARE

Marco,

USDL is NOT for modeling processes and interactions. It is a language for describing services (in the most general sense).

For modeling, in either UML, BPM, Nassi-Shneiderman, etc you may use any respective tool. The Apps Chapter uses yED.

Best - Thomas


From: Marco Castrucci [mailto:castrucci at dis.uniroma1.it]
Sent: Mittwoch, 12. Oktober 2011 16:03
To: Bohnert, Thomas Michael; fiware-i2nd at lists.fi-ware.eu
Cc: Kadner, Kay; Heller, Markus; Leidig, Torsten; garino pierangelo
Subject: Re: [Fiware-i2nd] USDL and Modelling in FI-WARE

Dear Thomas,

thanks for your input!
In addition, I'd like to suggest also to have a look to this paper: Cardoso, Winkler, Voigt "A service description language for the Internet of Services": http://eden.dei.uc.pt/~jcardoso/Research/Papers/ISSS-2009-Serv-Desc-Lang-for-the-IoS.pdf.

What is still not so clear to me is how to model technical aspects with USDL.
In the email you attached, I see that WP3 is using yEd tool for that. I had a look at yEd and I see that it also offers some utilities to draw UML diagrams (even if it is not so complete compared to other tools like StarUML).

Thus, is it right to conclude that, for the modelling of technical aspects, we don't need to use the USDL tool but we shall use other tools (like for example yEd or StarUML)? This means that we can use USDL for the global description of the service (business, legal aspects, etc.) and UML for its technical description?

Thank you in advance.
Best regards
Marco


----- Original Message -----
From: Bohnert, Thomas Michael<mailto:thomas.michael.bohnert at sap.com>
To: fiware-i2nd at lists.fi-ware.eu<mailto:fiware-i2nd at lists.fi-ware.eu>
Cc: Kadner, Kay<mailto:kay.kadner at sap.com> ; Heller, Markus<mailto:markus.heller at sap.com> ; Leidig, Torsten<mailto:torsten.leidig at sap.com>
Sent: Wednesday, October 12, 2011 11:22 AM
Subject: [Fiware-i2nd] USDL and Modelling in FI-WARE

Dear I2ND Members,

With reference to the call this morning here are some infos about USDL and general process/program design/modeling.

USDL:
Landing page: www.internet-of-services.com<http://www.internet-of-services.com>
Short intro: M. Heller, T. M. Bohnert, A. Friesen, "A Unified Service Description Language (USDL) (slides)", 3rd FI-PPP Usage Area Workshop", Brussels, Belgium, Jun 2011 http://dl.dropbox.com/u/43706589/USDL_Heller_tmb.pdf
Technical contact: M. Heller (WPL) / T. Leidig (WPA) / K Kadner (USDL W3C IC Chair). I suggest to schedule a USDL-briefing very soon. Also in order to address you concerns with respect to the stability and maturity of USDL in particular.

Modeling:
USDL is NO alternative to UML. Instead, for modeling your technical aspects you may consider the approach and tooling adopted in the Apps chapter. Precise info with real examples are attached.

Questions/Comments welcome.

Best - Thomas

--
Thomas Michael Bohnert
Technical Director
SAP (Schweiz) AG, Kreuzplatz 20, 8008 Zurich, Switzerland
T +41 58 871 7801, M +41 79 7018941, F +41 58 871 7812
email: thomas.michael.bohnert at sap.com<mailto:thomas.michael.bohnert at sap.com>
web: tmb.nginet.de, twitter: tmbohnert

Please consider the impact on the environment before printing this e-mail.
________________________________
_______________________________________________
Fiware-i2nd mailing list
Fiware-i2nd at lists.fi-ware.eu<mailto:Fiware-i2nd at lists.fi-ware.eu>
http://lists.fi-ware.eu/listinfo/fiware-i2nd
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.fiware.org/private/old-fiware-i2nd/attachments/20111012/fc3ec56f/attachment.html>