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Cloud computing is one of the emerging technologies that will lead to the next generation of Internet. It provides optimized and efficient computing through enhanced collaboration, agility, scalability, and availability. In this paper, the evolution of the Cloud is discussed, the cloud computing model is explained, a set of cloud computing infrastructure metrics is listed, the cloud service model...
The concepts and principles of layered design method and collaboratively using of different tools for developing network application system are presented in this paper. The recommended layered architectures are given respectively for the applications based on Client/Server model, Distributed Computing model and Web Database model. The advantages and disadvantages of layered design are also analyzed...
This paper presented a Kahn Process Network (KPN) based service composition environment called CSCE which can establish interactions among computational service nodes. KPN is a model of computation and commonly used for describing a set of cooperative processes that communicate with each other using FIFO buffered channel. KPN has several advantages which make it adequate to model service interactions:...
The current Internet is built on a set of protocols, but exhibits problems in supporting applications. The network is optimised for best-effort traffic, but other functional aspects are widely neglected. Applying concepts well-known in software engineering (abstraction, composition, separation of concerns) to design the future Internet architecture is seen as a promising way forward. This paper presents...
Cloud based services may experience changes - internal, external, large, small - at any time. Predicting and quantifying the effects on the quality-of-service during and after a change are important in the resiliency assessment of a cloud based service. In this paper, we quantify the resiliency of infrastructure-as-a-service (IaaS) cloud when subject to changes in demand and available capacity. Using...
Mobile Multimedia Broadcasting (MMB) is a new hotspot of wireless application and Cloud computing is a shared services architecture based method. With the analysis on advantages and disadvantages of characteristics in traditional service modes of MMB, the method of virtual computing and distributed processing of Cloud computing is introduced to promote the integration of MMB industrial chain. The...
Intelligent transportation systems (ITS) based on multi-agent technology are becoming a important approach to solve complex transportation problems. The geographically distributed nature of agents in heterogeneous environments leads to implementation difficulties such as interoperability among agents, which makes demand for a unified software platform as an underlying infrastructure. This paper presents...
Performance engineering for informational and transactional distributed systems must take into account both the development and runtime information about the target system and its environment. At development time, the architects have to choose from many architecture styles and consider all performance requirements across a multitude of workload. At runtime, an Autonomic Manager has to compensate for...
Cloud computing emerges as one of the hottest topic in field of information technology. Cloud computing is based on several other computing research areas such as HPC, virtualization, utility computing and grid computing. In order to make clear the essential of cloud computing, we propose the characteristics of this area which make cloud computing being cloud computing and distinguish it from other...
A Cyber-Physical System (CPS) is defined as integrations of computation and physical processes. In CPS, downsized embedded devices monitor and manage the physical process. Mobile Internet Device (MID), as a portable handheld device designed for mobility providing a down-graded computing capability, can be used as a strong candidate for client-side devices in CPS. Since these physical devices have...
As Cloud Computing begins to move beyond the pure hype stage and into the beginning of mainstream adoption, adopting cloud-based services or moving application services to the cloud brings a number of new risks, including: Cloud availability, Cloud security, Erosion of data integrity, and so on. However, for enterprise which require visibility, trust and control over cloud-based services. To maximize...
Web-based information technologies are being applied to create content-rich and flexible student laboratory environments in undergraduate mechanical engineering lecture and laboratory courses. In this paper, the characteristics of the web-based virtual mechanical laboratory and its implementation are introduced. The overall system architecture, hardware and software configuration, as well as the virtual...
Current theories and systems do not satisfy the requirements of P2P streaming on Internet in aspects of large scale, high quality and low cost. The transmission model of overlay network is the key factor. This paper proposes Regular Structured Model for P2P streaming including overlay network theory and management mechanisms. We developed ClusterStream a high service quality streaming system based...
With the fast development of Internet, the runtime environment of computer software becomes on-limits gradually. Software dynamic evolution is going to be a hot research topic in software engineering area. The concept, which is called separation of concerns during the development of aspect-oriented software, can well support the dynamic evolution of software. Motivated by this, we propose a new model,...
Coal water mixture is a new kind of fluid fuel, and the production of coal water mixture with automatic control is needed for its unique property. This paper focuses on design automatic control to the production of coal water mixture, and present some design schemes. It includes how to design coal water mixture with automatic control system. In addition, it introduces main blocks of coal water mixture...
Methodology of automatic generation of test cases based on Model Driven Architecture is proposed, and its design and implementation have be done. The process of generating test cases is that a platform-independent model is converted into a platform-independent test model through level conversion, and the platform-independent test model is converted into the corresponding test cases through vertical...
Cloud Computing is evolving from a mere “storage” technology to a new vehicle for Business Information Systems (BIS) to manage, organize and provide added-value strategies to current business models. However, the underlying infrastructure for Software-as-a-Service (SaaS) to become a new platform for trading partners and transactions must rely on intelligent, flexible, context-aware Multi-Tenant Architectures...
The role of data analytics increases in several application domains to cope with the large amount of captured data. Generally, data analytics are data-intensive processes, whose efficient execution is a challenging task. Each process consists of a collection of related structured activities, where huge data sets have to be exchanged between several loosely coupled services. The implementation of such...
To be successful a cloud service provider has to target a preferably large customer group to leverage economies of scale. Therefore an application offered as a service in the cloud is often configurable regarding non-functional qualities, such as location or availability. Since many of these qualities depend on the resources on which the service is hosted, a large number of computing environments...
Cloud computing has received significant attention recently. This paper presents real-time issues related to cloud computing, such as multi-tenancy architecture, scheduling, paralleled computing and proposes a framework for real-time service-oriented cloud computing. Specially, we propose a novel real time architecture which solve the new challenges in Cloud Computing.
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