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Due to the popularity of web services on the Internet, it is important to have a clear view of their utilization behaviors. Despite asynchronous service invocations and distributed executions can provide better user experience, our views are blurred by out-of-order and fragmented service logs. Researchers have been trying various methods to reveal emerging service orchestration patterns, but nearly...
When hydrologic scientists are looking for data to use in their data models relevant to their research area, they encounter a bottleneck when trying to collect relevant information, sometimes they might not know of all the available sources. Great Lakes Monitoring (GLM) collects data from 5 different state and federal agencies that take measurements on nutrients, geochemicals, contaminants, among...
It is critical of self-adaptive software system to monitor all kinds of information in real-time and obtain relevant data of the system to make the system can adjust automatically when necessary. In order to cope with the current market needs and rapidly changing environment, and combine the Web services with self-adaptive software systems perfectly, we proposed a monitoring and prediction model for...
Complex Event Processing over Web service event streams poses huge challenges with regard to efficient, scalable execution as well as expressive models and languages that account for the dynamics in long-running queries. We present a distributed query platform that tackles these problems. Our novel query model permits to specify inputs that provide data for other inputs and need to be processed first...
Recently, SCORM standard has deeply influenced e-learning area. But high expense and low efficiency sometimes discourage e-learning project's implementation and SCORM standard's application. The paper proposes a cloud service environment framework and its service mode for SCORM compatible content. It attempts to help content operating agency provide SCORM related services in a cheaper but higher quality...
The proliferation of Data as a Service (DaaS) available on the Internet and offered by cloud service providers indicates an increasing trend in providing data under Web services in e-science and business domains. While data usage and selection are dependent on different constraints established on the basis of several data concerns, for example, quality of data and data privacy, existing data service...
In this paper, A production environment monitoring system based on GPRS-Internet was designed and implemented. The system uses ARM9 embedded CPU as its host and realizes monitoring function and man-machine interface by using cross-platform C++ graphic interface library Qt in Linux OS. It sends collected data to remote server by GPRS model and clients realize real-time and long distance monitoring...
In this paper we propose the DISC-SeT framework to handle the representation, solution computation and verification of temporal and security requirements in the services composition. The proposed approach provides a flexible event calculus based composition design, that allows for modeling different temporal (response time, time-units and other) and security aspects (access control, confidentiality...
Web services composition design, verification and monitoring are active and widely studied research directions. Little work however has been done in integrating these related dimensions using a unified formalism. In this paper we propose a declarative event-oriented framework, called DISC, that serves as a unified framework to bridge the gap between the process design, verification and monitoring...
The presence of multiple services sharing a common functional interface necessitates differentiating between them on the basis of their performance. However advertised quality of service (QoS) alone cannot paint the true picture of how the service has performed so far and how it will continue to function in the near future. This information is crucial for service selection. In this paper, we outline...
This paper presents an approach to the runtime management of decentralized service compositions. The goal of the approach is to transparently observe the behavior of peer-to-peer service interaction in order to permit the introduction of adaptive behavior. The design includes a monitoring component that utilizes a choreography model to formulate a global view of the application, and introduce adaptive...
The recent trend of "everything as a service", is fostering the Internet of services (IoS) and will promote the emergence of service operation. Service operation provides the business and technical base for advanced business models. Service monitoring is a crucial issue for the guaranteed service delivery in service operation. However, most service monitoring approaches are specific and...
Remote control over the internet is generating significant research interest, of which a major research challenge is the generation of Web User Interface (WUI) according to individual user's specific requirements, for example different users have an interest in monitoring and controlling different machines. Furthermore, the same user may also be interested in different machines in different sessions...
The Internet of Services (IoS) idea promotes collaborative service exchange and trading platforms. Activity in the IoS is determined by metrics such as the number of users, number of services with associated descriptions and contract templates, negotiated contracts, performed invocations and generated measurements. In order to develop scalable and high-quality IoS platforms, experiments with user...
As the enterprise application business changing more complex and more constantly, the back-end storage services framework must be on-demand. While the on-demand dynamic integration and reorganization of enterprises focusing on the equipment and management is urgently needed. So for this goal, we propose the VS3, virtual storage system model. Using the technology of virtual storage and the storage...
One of the main open issues in the development of applications for sensor network management is the definition of interoperability mechanisms among the several monitoring systems and heterogeneous data. Interesting researches related to integration techniques have taken place, they are primary based on the adoption of sharing data-mechanisms; furthermore in the last years, the Service-Oriented Architecture...
The increasing numbers of different services that execute similar tasks offer the user a tough choice. Since most services perform nearly identical or their properties are not comparable easily, users are often not in the position to differ between various qualities of service. The situation becomes even worse if multiple single services are combined into complex service compositions that are elusive...
We present an approach to the inference of automata models of Web-based business applications using only execution traces recording the externally observable behavior of such applications. The proposed approach yields behavioral models representing both the control flow of an application and the data variations corresponding to different types of users. We also describe how the obtained models allow...
Service-oriented systems facilitate business workflows to span multiple organizations (e.g. by means of Web services). As a side effect, data may be more easily transferred over organizational boundaries. Thus, privacy issues arise. At the same time, there are personal, business and legal requirements for protecting privacy and IPR and allowing customers to request information about how and by whom...
With the advent of grid and service-oriented technologies, scientific workflows have been introduced in response to the increasing demand of researchers for assembling diverse, highly-specialized applications, allowing them to exchange large heterogeneous datasets in order to accomplish a complex scientific task. Much research has already been done to provide efficient scientific workflow management...
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