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With the growth of Internet, “always on” services are becoming increasingly important in software evolution. Component based software architecture (CBSA) is one of the hottest fields in software research, how to apply non-stop software evolution to CBSA has been an urgent task in software evolution. Component relativity is a key issue in solving this problem. In this paper, we established a component...
The steady drumbeat of Cloud as a disruptive influence for Infrastructure Service Providers (ISP's) and the enablement vehicle for Software As A Service (SAAS)providers can be heard loud and clear in the industry today. In fact, Cloud is probably at the peak of the hype curve, and already there are identified challenges associated with effective deployment for business critical applications (so called...
As applications grow more and more complex, the current software faces a great challenge in dynamism. This paper proposes to modernize legacy software towards runtime plug-and-play architecture using service-oriented component model. Our object is to provide runtime plug-and-play feature for software to simplify development and adapt to changing execution environment. We propose a two-stage modernization...
Due to technological advances of handheld computing and communication devices, Mobile commerce (M-commerce) has emerged and attracted a growing number of research efforts. M-commerce not only extends Internet-based Electronic commerce (E-commerce), but also offers a unique business opportunity with its own features, such as ubiquity, accessibility, portability, etc. In this paper, we discuss some...
Active mechanism is an important feature of real-time database management system (DBMS). On the basis of the active mechanism, real-time DBMS can take some measures according to environmental change of the database, so can execute predetermined actions and not just passively to the implementation of the user's command. This paper proposes the conception of active web database on the basis of the traditional...
To follow the technology advancement and satisfy the needs on the RTI software in the “Cloud computing” age, a scheme of remodeling the traditional RTI software to be with “Platform as a Service (PaaS)” architecture was proposed. Software construction, sub-component functions and the method of interacting based on the remodeled RTI software on the WAN were studied. The focus was scheduling computing...
In this paper, we present a REST-based SOA system, Set It Right (SIR), where people can get feedback on and help with short texts. The rapid development of the SIR system, enabled by designing it as a set of services, and also leveraging commercially offered services, illustrates the strength of the SOA paradigm. Finally, we evaluate the Cloud Computing techniques and infrastructures used to deploy...
This paper presents a reference model for Event Driven Composite Services, shows how such a model can be used as a basis to design a Service Creation Platform and a Service Execution Platform and describes an example of a Composite Service that takes advantage of the model and of the platforms. The Event Driven Service Composition paradigm supports the design and the implementation of distributed...
This paper describes a service-oriented architecture that facilitates the execution of learning units, based on the IMS Learning Design specification (IMS LD), in a metaverse platform like Second Life or OpenSim. This architecture externalizes the functionalities of the IMS LD engine through web services that are invoked by metaverse platform scripts. A software module that translates the requests...
Introduced WebForms, MVC and MVP architecture works under the NET platform, the characteristics of the three structures were analyzed and compared, especially described WebForms's ViewState, the performance and client ID pollution problems and give solutions; combing their respective advantages, noted suitable scenarios of three kinds framework, aiming to supply reference for developing Web system.
Modern service-oriented systems have increasingly complex loosely-coupled architectures that often exhibit poor performance and resource efficiency and have high operating costs. This is due to the inability to predict at run-time the effect of dynamic changes in the system environment (e.g., varying service workloads) and adapt the system configuration accordingly. In this paper, we describe a long-term...
Employees are increasingly participating in business processes using mobile devices. Often, this is supported by a mobile web application, which accesses various web services in the back-end. The high latency of the mobile network (e.g., EDGE) is perceived by the user each time a web service is called, in addition to the time needed to invoke the service itself. This high latency may lead to low usability,...
Growing long-term cost of managing an onsite medical imaging archive has been a subject which the health care industry struggles with. Based on the current trend, it is estimated that over 1 billion diagnostic imaging procedures will be performed in the United States during year 2014, generating about 100 Petabytes of data. The high volume of medical images is leading to scalability and maintenance...
In service-oriented systems, composition of services is required to build new, distributed and more complex services, based on the logic behavior of individual ones. This paper discusses the formal composition of Petri nets models used for the process description and control in service-oriented automation systems. The proposed approach considers two forms for the composition of services, notably the...
Mobile agent technology has been evolving since late 1990s and its development is essentially independent of developments in distributed computing technology such as SOA, Semantic web and Web services. Incorporating mobile agents bring undeniable benefits to a distributed application. Present mobile agent technology fails to leverage the interoperable web infrastructure developed in a standard compliant...
Modern computer systems for distributed service computing become highly complex and difficult to manage. A self-adaptive approach that integrates monitoring, analyzing, and actuation functionalities has the potential to accommodate to a dynamically changing environment. The main objective of this paper is to develop an architecture-based self-adaptive framework to improve performance and resource...
The modern Web architecture basically follows the Representational State Transfer (REST) style. This style offers the architectural properties necessary to implement the Internet-scale Web. However, most authentication and delegation technologies that rely on session state actually deviate from the REST style. It must be noted, however, that the diversity of these technologies is imperative for the...
Organic software architecture is promising software architecture that provides easiness in its maintenance and support in grow-able environment of software system. In the previous research, this software architecture has been implemented in building web-based healthcare information system. By now, it is still not evaluated yet. Evaluating software architecture is important in the software development...
With the increasing popularity of distributed systems, middleware has become a major building block for the development of distributed applications. In this paper, we firstly analyze in detail four traditional middleware systems called RPC middleware, message-oriented middleware, transaction-oriented middleware, and distributed object middleware. Subsequently, we present a detailed review of SOA,...
This paper describes the design and the development of a new real time data acquisition system which focuses on oceanographic research. The system has been implemented in several Spanish oceanographic platforms (vessels and land-sites) using very reliable MESH network that can still operate when one node breaks down or a connection goes bad. Service Oriented Architecture allows expandable access to...
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