Providing scalability for an automated web service composition framework

Download

index.pdf

Date

2010

Author

Kaya, Ertay

Metadata

Show full item record

Item Usage Stats

240
views

124
downloads

In this thesis, some enhancements to an existing automatic web service composition and execution system are described which provide a practical significance to the existing framework with scalability, i.e. the ability to operate on large service sets in reasonable time. In addition, the service storage mechanism utilized in the enhanced system presents an effective method to maintain large service sets. The described enhanced system provides scalability by implementing a pre-processing phase that extracts service chains and problem initial and goal state dependencies from service descriptions. The service storage mechanism is used to store this extracted information and descriptions of available services. The extracted information is used in a forward chaining algorithm which selects the potentially useful services for a given composition problem and eliminates the irrelevant ones according to the given problem initial and goal states. Only the selected services are used during the AI planning and execution phases which generate the composition and execute the services respectively.

Subject Keywords

Computer enginnering., QA Computer Software 76.75-76.765

URI

http://etd.lib.metu.edu.tr/upload/12612033/index.pdf
https://hdl.handle.net/11511/19662

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

A conformance and interoperability test suite for Turkey’s National Health Information System (NHIS) and an interactive test control and monitoring environment Sınacı, Ali Anıl; Doğaç, Asuman; Department of Computer Engineering (2009) Conformance to standards and interoperability is a major challenge of today`s applications in all domains. Several standards have been developed and some are still under development to address the various layers in the interoperability stack. Conformance and interoperability testing involves checking whether the applications conform to the standards so that they can interoperate with other conformant systems. Only through testing, correct information exchange among applications can be guaranteed. National H...
Semantically enriched web service composition in mobile environments Ertürkmen, K. Alpay; Doğaç, Asuman; Department of Information Systems (2003) Web Services are self-contained, self-describing, modular applications that can be published, located, and invoked through XML artefacts across the Web. Web services technologies can be applied to many kinds of applications, where they offer considerable advantages compared to the old world of product-specific APIs, platform-specific coding, and other أbrittleؤ technology restrictions. Currently there are millions of web services available on the web due to the increase in e-commerce business volume. Web se...
Design and implementation of an open security architecture for a software-based security module Kaynar, Kaan; Özgit, Attila; Department of Computer Engineering (2009) Main purpose of this thesis work is to design a comprehensive and open security architecture whose desired parts could be realized on a general-purpose embedded computer without any special cryptography hardware. The architecture provides security mechanisms that implement known cryptography techniques, operations of some famous network security protocols and appropriate system security methods. Consequently, a server machine may offload a substantial part of its security processing tasks to an embedded com...
Using social graphs in one-class collaborative filtering problem Kaya, Hamza; Alpaslan, Ferda Nur; Department of Computer Engineering (2009) One-class collaborative filtering is a special type of collaborative filtering methods that aims to deal with datasets that lack counter-examples. In this work, we introduced social networks as a new data source to the one-class collaborative filtering (OCCF) methods and sought ways to benefit from them when dealing with OCCF problems. We divided our research into two parts. In the first part, we proposed different weighting schemes based on social graphs for some well known OCCF algorithms. One of the weig...
Semantic processes for constructing composite web services Kardaş, Karani; Karagöz, Pınar; Department of Computer Engineering (2007) In Web service composition, service discovery and combining suitable services through determination of interoperability among different services are important operations. Utilizing semantics improves the quality and facilitates automation of these operations. There are several previous approaches for semantic service discovery and service matching. In this work, we exploit and extend these semantic approaches in order to make Web service composition process more facilitated, less error prone and more automa...

Citation Formats

E. Kaya, “Providing scalability for an automated web service composition framework,” M.S. - Master of Science, Middle East Technical University, 2010.