Open Access
Modeling Quality of Service for Workflows and Web Service Processes
Reads0
Chats0
TLDR
This paper presents a predictive QoS model that makes it possible to compute the quality of service for workflows automatically based on atomic task QoS attributes, and presents the implementation of the model for the METEOR workflow system.Abstract:
Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows for e-commerce and Web service applications, suppliers and customers define a binding agreement or contract between the two parties, specifying Quality of Service (QoS) items such as products or services to be delivered, deadlines, quality of products, and cost of services. The management of QoS metrics directly impacts the success of organizations participating in e-commerce. Therefore, when services or products are created or managed using workflows, the underlying workflow system must accept the specifications and be able to estimate, monitor, and control the QoS rendered to customers. In this paper, we present a predictive QoS model that makes it possible to compute the quality of service for workflows automatically based on atomic task QoS attributes. To this end, we present a model that specifies QoS and describe an algorithm and a simulation system in order to compute, analyze and monitor workflow QoS metrics.read more
Citations
More filters
Proceedings ArticleDOI
An approach for QoS-aware service composition based on genetic algorithms
TL;DR: Genetic Algorithms, while being slower than integer programming, represent a more scalable choice, and are more suitable to handle generic QoS attributes.
Posted Content
A Taxonomy of Workflow Management Systems for Grid Computing
Jia Yu,Rajkumar Buyya +1 more
TL;DR: A taxonomy that characterizes and classifies various approaches for building and executing workflows on Grids is proposed that highlights the design and engineering similarities and differences of state-of-the-art in Grid workflow systems, but also identifies the areas that need further research.
Journal ArticleDOI
A Taxonomy of Workflow Management Systems for Grid Computing
Jia Yu,Rajkumar Buyya +1 more
TL;DR: In this article, a taxonomy that characterizes and classifies various approaches for building and executing workflows on Grids has been proposed, highlighting the design and engineering similarities and differences of state-of-the-art in Grid workflow systems, and identifying the areas that need further research.
Book
Interval Neutrosophic Sets and Logic: Theory and Applications in Computing
TL;DR: This work defines the set-theoretic operators on an instance of a neutrosophic set, and calls it an Interval Neutrosophics Set (INS), and introduces a new logic system based on interval neutrosophile sets and proposed data model based on the extension of fuzzy data model and paraconsistent data model.
Proceedings ArticleDOI
Combining global optimization with local selection for efficient QoS-aware service composition
Mohammad Alrifai,Thomas Risse +1 more
TL;DR: This paper proposes a solution that combines global optimization with local selection techniques to benefit from the advantages of both worlds and significantly outperforms existing solutions in terms of computation time while achieving close-to-optimal results.
References
More filters
Dissertation
Quality of service and semantic composition of workflows
Silva Cardoso,Antonio Jorge +1 more
Journal ArticleDOI
Deadline assignment in a distributed soft real-time system
Ben Kao,Hector Garcia-Molina +1 more
TL;DR: This paper presents and analyzes techniques for automatically translating the overall deadline into deadlines for the individual subtasks in a real-time system.
Proceedings ArticleDOI
Access control mechanisms for inter-organizational workflow
TL;DR: The requirements and solutions in this paper address the scalability of existing security solutions, the separation of inter-organizational workflow security from concrete organization level security enforcement, and the enforcement of fine-grained access control for inter- Organizational workflow.
Journal ArticleDOI
Managing change and time in dynamic workflow processes
TL;DR: The issues and challenges related to managing change and time in workflows representing dynamic business processes are discussed and an analysis of workflow modifications and feasibility considerations for the automation of this process are provided.
Book ChapterDOI
Clinical Workflows - The Killer Application for Process-oriented Information Systems?
TL;DR: The paper uses the clinical domain to motivate and to elaborate the functionality needed to adequately support an advanced application environment and presents solutions for some issues based on the concepts elaborated in the ADEPT project.