The 5th Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing

December 5, Paphos, Cyprus,
co-located with 9th International Conference on Service Oriented Computing (ICSOC 2011)

The proceedings will be published by LNCS Services Science Subline.
  General overview
  Workshop Venue
  Organizing Committee
  Program Committee
  Important Dates
  Paper Submission
  Accepted Papers
   General Overview

Nowadays businesses as well as the Web require information to be available in real-time in order to reply to requests, make effective decisions and generally remain competitive. This in turn requires data to be processed in real-time. In general in service-oriented architecture (SOA) one is less concerned with latency in data processing. Clearly, there are investigations of service-level agreements (SLA) and quality of service (QoS) to guarantee service delivery. Research around non-functional properties and service-level agreements for service-oriented computing has reached a level of maturity. There are approaches for describing properties, managing SLAs and even for selecting and composing services based on NFPs. Beyond these classical topics SOA inspired extensions are enabling new and creative domains like the Internet of Things, real-time business or real-time Web. These new domains impose new requirements on SOA, such as a huge data volume, mediation between various data structures and a large number of sources that need to be procured, processed and provided. Questions like how to pick the right service out of tens of thousands of services if we talk about sensor networks or how to provide results with almost near zero-latency describe actual questions and challenges we are currently facing. Therefore, we have to look into new ways for processing data, converting and composing data coming from various sources and for enabling an easy and lightweight way to impose it on various sets of devices.

This is further motivated by the recent evolution of the Web, which is changing radically the way data and services are shared, used, and combined. On the one hand, impelled by Web 2.0 technologies, services on the Web are increasingly shared openly based on REST principles and a light technology stack based largely on HTTP and XML or JSON. On the other hand, there is an ever increasing amount of data available on the Web provided by RESTful services, social networks, open data initiatives, and even sensors. To cater for this increase in the quantity of data but also in the diversification of its nature, Linked Data principles are emerging as the best means for sharing data on the Web by exposing and interlinking information about any entity on the basis of URIs and RDF. These technologies are giving birth to a Web of Data about basically anything. Driven by the aforementioned trends, the emergence of a Web of Services capturing data about services and their relationship with other services and real-world entities such as people, organisations or products is gradually taking place, see for examples initiatives like GoodRelations and iServe. Finding, composing, invoking and enacting services effectively in this new context is thus increasingly becoming a matter of efficiently and effectively analysing and combining large amounts of data to make informed and adaptive decisions.

The first four editions of the NFPSLA-SOC Workshop (nfpsla-soc07, second edition, nfpsla-soc09, nfpslam-soc10) were organized at the ICSOC 2007, ECOWS 2008, ICSOC 2009 and ECOWS 2010. They were focused on the management of Non-Functional Properties and Service Level Agreements in the context of Service Oriented Computing. While the general objectives of the workshop remain the same, for the current edition of the workshop we aim to create a forum where one can expose and discuss novel ideas on the use and management of non-functional properties and Service Level Agreements bearing in mind the aforementioned evolution in service technologies and related activities influencing the service world such as social networks, open data initiatives, and even sensors. The workshop aims to tackle the research problems around methods, concepts, models, languages and approaches for management, including finding, composing, invoking and enacting services informed by non-functional properties as well as by any other information related to services. This proposed workshop aims to bring together researchers and industry attendees addressing these issues, to promote and foster a greater understanding of how the management of NFP, QoS and SLAs can assist business to business and enterprise application integration. We are especially interested in new ways utilizing linked data, Web2.0 approaches to enable scalable service related tasks based on non-functional properties and SLA descriptions.


The following indicates the general focus of the workshop. However, related contributions are welcome as well.

  • Exposing NFPs and SLAs using Linked Open Data.
  • Discovery, integration and management of NFPs on the Web.
  • NFPs and SLAs in Future Internet.
  • NFPs and SLAs for Cloud Computing.
  • Approaches for lightweight processing of service offerings
  • Fast processing of data and data structures
  • Flexible data conversions.
  • Approaches of stream processing in SOA.
  • Languages for fast data processing of service offerings.
  • Formal methods for NFP and Quality of Services.
  • NFP description and annotation for RESTful and WSDL-base services.
  • NFP-based discovery of services.
  • NFP-based selection and ranking of services.
  • NFP-based mediation.
  • NFP and SLA driven service composition.
  • NFP-based negotiation and agreement of service contracts.
  • NFP-based monitoring, accounting and recovery.
  • Management and Governance of NFPs.
  • Quality of Services.
  • Quality Requirements and Metrics for services.
  • Defining and enforcing SLA violations.
  • Business requirements for electronic contracts.
  • SLA lifecycle.
  • Service Level Management/Planning.
  • SLA Evolution/Change.
  • Legal status and requirements on SLAs.
  • Cost and Quality models and measurements for SLAs.
  • Security and trust aspects in SLAs.
  • SLA experience reports.

   Workshop Venue

Paphos, Cyprus

The workshop is to be held in conjunction with The 9th International Conference on Service Oriented Computing (ICSOC2011)

   Organizing Committee

Flavio de Paoli
Dipartimento di Informatica Sistemistica e Comunicazione
Universita degli studi di Milano - Bicocca
Milano, Italy
Phone: +39 02 6448 7836
Fax: +39 02 6448 78 7839

Ioan Toma
STI Innsbruck, University of Innsbruck
Technikerstra├če 21A, 6020 Innsbruck, Austria
Phone: +43 512 507 6424

Marcel Tilly
European Microsoft Innovation Center
Ritterstrasse 23, 52072 Aachen, Germany
Phone: +49 241 997 84 14

Carlos Pedrinaci
Knowledge Media Institute - The Open University
Walton Hall, Milton Keynes, MK7 6AA United Kingdom
Phone: +44 1908 654773

   Program Committee (to be confirmed)

Ziv Baida, Free University Amsterdam, Netherlands

Kamal Bhattacharya, IBM Watson Research, USA

Luciano Bresi, Politecnico di Milano, Italy

Yuan Chen, HP, USA

Marco Comerio, University of Milano-Bicocca, Italy

Massimiliano Di Penta, University of Sannio, Italy

David Edmond, Queensland University of Technology, Australia

Juan Miguel Gomez, Carlos III University, Madrid, Spain

Bastian Koller, HLRS - University of Stuttgart, Germany

Michael C. Jaeger, Siemens Corporate Research and Technology, Munich, Germany

Jacek Kopecky, Open University, UK

Kyriakos Kritikos, FORTH, Greece

Russell Lock, St. Andrews University, UK

Daniel Oberle, SAP, Germany

Incheon Paik, University of Aizu, Aizu-Wakamatsu, Fukushima, Japan

Mike Papazoglou, Tilburg University, Netherlands

Adrian Paschke, Technological University Dresden, Germany

Stephan Reiff-Marganiec, University of Leicester, UK

Dumitru Roman, SINTEF, Norway

Antonio Ruiz, University of Sevilla, Spain

Alfonso Sanchez-Macian, University Antonio de Nebrija, Spain

Brahmananda Sapkota, University of Twente, Netherlands

Peter Sawyer, Lancaster University, UK

Bryan Stephenson, HP Labs, UK

Nenad Stojanovic, AIFB, Germany

Hong-Linh Truong, Vienna University of Technology, Austria

Michael Weiss, Carleton University, Canada

   Important Dates - DEADLINE EXTENSSION!!! 23.09.2011
  • Full Paper Submission: Sep 23, 2011
  • Notification of Acceptance: Oct 23, 2011
  • Submission of camera-ready version for pre-proceedings: Nov 07, 2011
  • Workshops day: Dec 5, 2011

   Paper Submission

Papers should be between 8 to 15 pages and prepared in accordance with the Springer LNCS format. Detailed instructions for authors are available on the LNCS website. All papers will receive a peer-review. Proceedings of the workshop will be published by Springer in LNCS Services Science Subline.

All the papers should be submitted in electronic format (pdf version) using the following link:


The agenda of the workshop is available here.

   Accepted Papers

The list of accepted papers is available here.


Those who are interested in attending the workshop should register through the main conference.


Any further enquiries about the workshop may be sent to Flavio de Paoli (