by Kerrigan, Mick; Mocan, Adrian; Simperl, Elena; Fensel, Dieter

The lack of any methodology for modeling Semantic Web Services means that developers wishing to utilize technologies like the Web Service Modeling Ontology, the Web Service Modeling Language, and the Web Service Execution Environment are lost in a Semantic wilderness with no road signs to guide them on their way. This paper presents an initial guide for developers wishing to model Semantic Web Services, along with a description of the Web Service Modeling Toolkit that provides tool support for the activities that must be conducted by the developer in this process.

DOI: 10.1007/s10922-009-9130-8
Online Date: 5/27/2009
Print publication date: 9/1/2009
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by Prieto, Álvaro E.; Lozano-Tello, Adolfo

One of the applications of workflow systems is the management of administrative processes characterized by the transmission of information elements among users of an organization. Tasks contained in these processes are carried out by users responsible for confirming, modifying or adding information throughout. These processes need to be defined in workflow management systems in which all the elements are perfectly identified and are easily adaptable to changes that may arise in the sequences of tasks, in the users involved or in the data transmitted from one task to another. For this kind of processes is easier to reuse those represented in ontologies. On one hand, existing ontologies for representing some domain elements

by Strassner, John; Meer, Sven; O’Sullivan, Declan; Dobson, Simon

The purpose of autonomic networking is to manage the business and technical complexity of networked components and systems. However, existing network management data has no link to business concepts. This makes it very difficult to ensure that services offered by the network are meeting business objectives. This paper describes a novel context-aware policy model that uses a combination of modeled and ontological data to determine the current context, which policies are applicable to that context, and what services and resources should be offered to which users and applications.

DOI: 10.1007/s10922-009-9126-4
Online Date: 5/19/2009
Print publication date: 9/1/2009
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by Chourmouziadis, Aimilios; Charalambides, Marinos; Pavlou, George

Web Services is an XML-based technology that has attracted significant attention for building distributed Internet services. Considerable research efforts have been trying to extend it to become a unifying management technology; initial evaluation efforts have demonstrated promising application potential in the domain of network and service management. This paper analyzes the monitoring requirements of a management system used in architectures for providing quality of service, and shows how Web Services can be used effectively to fulfill these requirements. In order to achieve this, a WS-based framework was designed and a query tool was developed to support distributed, optimized retrieval of management information exposed as Web Services. The query tool supports selective

by Schönwälder, Jürgen; Hausheer, David

This article presents a report on AIMS 2008, which was held July
1–3, 2008 at Jacobs University Bremen in Germany. The theme of the
conference was “Resilient Networks and Services”.

DOI: 10.1007/s10922-008-9113-1
Online Date: 12/3/2008
Print publication date: 12/1/2008
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by Natu, Maitreya; Sethi, Adarshpal S.

We address the problem of selecting probe station locations from where probes can be sent to monitor all the nodes in the network. Probe station placement involves instrumentation overhead. Hence, the number of probe stations should be minimal to reduce the deployment cost. Also, probe station placement should be such that the network can be monitored even in the presence of failures. We present algorithms to select locations of probe stations so that the entire network can be monitored for computing various performance metrics. We aim to find a minimal set of probe station nodes so as to minimize the instrumentation overhead. The algorithm presented provides robust monitoring in presence of node

by Stiller, Burkhard; Hausheer, David

This report summarizes the 2nd International Summer School on Network and Service Management (ISSNSM’08), which was held at the Communication Systems Group (CSG) of the Department of Informatics (IFI), University of Zurich, Switzerland, on 2–6 June 2008. Supported by the European FP6 Network of Excellence for the Management of Internet Technologies and Complex Services (EMANICS), the ISSNSM presented within 5 days eight different topics, covering the areas of (1) security, (2) virtualization and simulations, and (3) network monitoring and management. All of these run for a full or half day, including a short theoretical introduction and larger practical lab course components, respectively.

DOI: 10.1007/s10922-008-9112-2
Online Date: 11/11/2008
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