scholarly journals Web Services Selection Based on Mixed Context and Quality of Service Ontology

2011 ◽  
Vol 4 (3) ◽  
Author(s):  
Nabil Keskes ◽  
Ahmed Lehireche ◽  
Abdellatif Rahmoun
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Service Ontology

Quality-of-Service Support in Web Services Architecture

2004 ◽  
Vol 9 (5-6) ◽  
pp. 185-203 ◽  
Author(s):  
Amma Eleyan ◽  
Ludmil Mikhailov ◽  
Liping Zhao
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Service Support

Multi-criteria Web Services Selection: Balancing the Quality of Design and Quality of Service

2022 ◽  
Vol 22 (1) ◽  
pp. 1-31
Author(s):  
Marwa Daaji ◽  
Ali Ouni ◽  
Mohamed Mohsen Gammoudi ◽  
Salah Bouktif ◽  
Mohamed Wiem Mkaouer
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Web Service ◽  
State Of The Art ◽  
Service Selection ◽  
Service Design ◽  
Design Quality ◽  
Trade Off ◽  
Selection Approach

Web service composition allows developers to create applications via reusing available services that are interoperable to each other. The process of selecting relevant Web services for a composite service satisfying the developer requirements is commonly acknowledged to be hard and challenging, especially with the exponentially increasing number of available Web services on the Internet. The majority of existing approaches on Web Services Selection are merely based on the Quality of Service (QoS) as a basic criterion to guide the selection process. However, existing approaches tend to ignore the service design quality, which plays a crucial role in discovering, understanding, and reusing service functionalities. Indeed, poorly designed Web service interfaces result in service anti-patterns, which are symptoms of bad design and implementation practices. The existence of anti-pattern instances in Web service interfaces typically complicates their reuse in real-world service-based systems and may lead to several maintenance and evolution problems. To address this issue, we introduce a new approach based on the Multi-Objective and Optimization on the basis of Ratio Analysis method (MOORA) as a multi-criteria decision making (MCDM) method to select Web services based on a combination of their (1) QoS attributes and (2) QoS design. The proposed approach aims to help developers to maintain the soundness and quality of their service composite development processes. We conduct a quantitative and qualitative empirical study to evaluate our approach on a Quality of Web Service dataset. We compare our MOORA-based approach against four commonly used MCDM methods as well as a recent state-of-the-art Web service selection approach. The obtained results show that our approach outperforms state-of-the-art approaches by significantly improving the service selection quality of top- k selected services while providing the best trade-off between both service design quality and desired QoS values. Furthermore, we conducted a qualitative evaluation with developers. The obtained results provide evidence that our approach generates a good trade-off for what developers need regarding both QoS and quality of design. Our selection approach was evaluated as “relevant” from developers point of view, in improving the service selection task with an average score of 3.93, compared to an average of 2.62 for the traditional QoS-based approach.

scholarly journals Weighted Quality of Service based Ranking of Web Services

2016 ◽  
Vol 9 (21) ◽  
Author(s):  
F. Ezhil Mary Arasi ◽  
S. Govindarajan ◽  
A. Subbarayan
Keyword(s):  
Quality Of Service ◽  
Web Services

Web Services for Quality of Service Based Charging

2010 ◽  
pp. 219-236
Author(s):  
Evelina Pencheva ◽  
Ivaylo Atanasov
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Web Service ◽  
Telecommunication Network ◽  
Single Point ◽  
Multimedia Networks ◽  
Qos Management ◽  
Charging Control ◽  
Underlying Network

Parlay X is a set of Web Service interfaces. These interfaces are designed to provide open access to telecommunication network functions in order to hide underlying network technology, and its control protocol complexity, from application developers. The Parlay X “intelligence” is concentrated in a node called Parlay X Gateway which converts interfaces methods in protocol messages and vice versa. An inherent constraint on any implementation requires the Parlay X Gateway to govern the interface to the underlying network i.e., to provide a single point of contact at which vertical signaling is received from the network. This chapter presents a study on alternatives for Parlay X Web Service deployment in Internet Protocol based multimedia networks (IMS). The focus is set on Parlay X Web Services for application-driven quality of service (QoS) management and charging control. It is presented as an analysis of the interfaces. Particularly the discussion is about their applicability to Policy and Charging Control architecture in IMS. Going further, the Web Service interfaces are mapped onto network protocols that they affect, namely Session Initiation Protocol (SIP) and Diameter. On that base an improvement is suggested concerning Parlay X interfaces for QoS management without violating the specified interface functionality. The usage of Web Services is exemplified with an application for charging control based on the provided QoS.

Fuzzy-based Clustering of Web Services’ Quality of Service: A Review

2014 ◽  
Vol 9 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Mohd Hilmi Hasan ◽  
Jafreezal Jaafar ◽  
Mohd Fadzil Hassan
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Services Quality

A PLATFORM FOR SERVICE PROVIDER TO ADVERTISE QUALITY OF SERVICE USING WSDL

2011 ◽  
Vol 08 (04) ◽  
pp. 291-302
Author(s):  
RAVI SHANKAR PANDEY
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Web Service ◽  
Service Provider ◽  
Quality Attributes ◽  
The Internet ◽  
Service Description ◽  
Description Language ◽  
Java Code

Web services are programs which perform some elementary business process of an application and are distributed over the Internet. These services are described, discovered and executed using standard languages WSDL, SOAP and UDDI. Proliferation of web services has resulted in intense competition between providers, which provide the same service. To survive in such a competitive environment, they need to advertise the quality of their service. Web service description language does not provide support to describe quality attributes. Recently, DAmbrogio proposed QOS model of web services based on a meta model of WSDL. In this paper, we present a platform to advertise QOS as declared by the service provider. This tool generates a WSDL file from Java code along with its quality of service attributes. It accepts Java code and a file containing quality attributes. These attributes include reliability, availability, and operation demand and operation latency. These attributes are included in WSDL file as a content of description element.

scholarly journals Performance Anomaly Detection in Web Services: an RNN-based Approach Using Dynamic Quality of Service Features

2020 ◽  
Vol 64 (2) ◽  
pp. 729-752
Author(s):  
Muhammad Hasnain ◽  
Seung Ryul Jeong ◽  
Muhammad Fermi Pasha ◽  
Imran Ghani
Keyword(s):  
Quality Of Service ◽  
Web Services ◽  
Anomaly Detection ◽  
Performance Anomaly ◽  
Dynamic Quality
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