ppt 26-02-2015

Investigating QoS of Real-World Web Services

Abstract

• Quality of service (QoS) is widely employed for describing nonfunctional characteristics of web services.

• To investigate QoS of real-world web services and to provide reusable research data sets for future research, this project conduct several large-scale evaluations on real-world web services

Existing System

• In the field of service computing, a number of QoS based approaches have been engaged for web service recommendation, service composition, fault-tolerant web services web service search, and so on. However, there is still a lack of comprehensive real-world web service QoS data sets for validating various QoS-based approaches.

Drawbacks of Existing System

• Do not use Composite Service• Web Service validation is not possible• Cannot validate various QoS services

Problem Definition

• Although QoS of web services has been investigated intensively in the field of service computing, there is a lack of real-world web service QoS data sets for validating various QoS-based techniques and models.

Proposed System

• First hand experiences on real world web service QoS are provided in this project and reusable QoS research data sets are publicly released for future research. Extended from its previous, which reports the results of the first two evaluations

• The extensions include: providing detailed analysis and discussions on the relationship between QoS values and time, and showing the applicability of our data sets while engaging research topics of QoS prediction, web service selection, web service search, and fault-tolerant web services.

Algorithms Used

• Failure Probability Detection• Response Time & Throughput Computation• Time Aware Performance Calculation

Architecture

Software Requirements

1. Operating

System

Windows / Linux

2. Languages

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Software

Java Runtime Environment, Java Software Development Kit 1.6Java NetBeans IDE