On Exploring Performance Optimizations in Web Service Composition

Abstract

Abstract. The importance of service composition has been widely recognized in the Internet research community due to its high flexibility in allowing development of customized applications from primitive services in a plug-and-play manner. Although much research in defining architectures, choreography languages and etc, has been conducted, little attention has been paid to composite services' runtime performance-related aspects (e.g., network bandwidths, path delay, machine resources), which are of great importance to wide-area applications, especially those that are resource-consuming. Service composition in the wide area actually creates a new type of routing problem which we call QoS service routing. We study this problem in large networks and provide distributed and scalable routing solutions with various optimization goals. Most importantly, we propose ways to reduce redundancies in data delivery and service execution through explorations of different types of multicast (service multicast and data multicast) in one-to-many application scenarios.

Resource-aware service composition for video multicast to heterogeneous mobile users

“…All the above studies treat only service unicast which calculates a single service path for one service user independently, and do not treat service multicast where service components are efficiently shared in multiple service paths to the service users. [11,12,13] propose methods to efficiently deliver multimedia contents to heterogeneous users in various network environments, similarly to our proposed method. However, [11] assumes more constrained environment that the number and the types of service components which can be executed at each proxy are predetermined and do not change.…”

“…Also, these studies do not handle mobile nodes. [13] proposes an algorithm to calculate efficient service delivery paths by concatenating a multicast tree connecting proxies and local multicast trees consisting of user nodes so that resource consumptions of those trees are minimized. In this method, each local multicast tree is connected to the proxy so that the service delivery path via the proxy has the smaller physical hop count and the larger available bandwidth.…”

A Fault-Tolerant Method for Enhancing Reliability of Services Composition Application in WSNs Based on BPEL

“…However, deploying a test-bed system to evaluate WSNs application system is very expensive and time consuming. Therefore, the performance modeling and analysis of WSC in WSNs is the important research direction of business process reengineering [9][10][11][12][13][14][15][16][17].…”

Fault-Tolerance for Component-Based Systems - An Automated Middleware Specialization Approach

“…Many such solutions to specializing middleware exist [9,11], however, these solutions are often handcrafted, which require a thorough understanding of the middleware design and implementation. The second question therefore is how can these specializations be automated to overcome the tedious, error-prone, and expensive manual approaches?…”