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With increasing development of Internet, grid as a new structure of distributed network will be discussed more and more, while its security is facing the heavy challenge and restricts application of grid. The international research shows that grid security is on the way to trustworthy grid. Apart from current trust model, the future trust model in grid should add users' behaviors reflecting users'...
This paper, after a careful study of the standard workflow meta-model given by WFMC, proposes a new workflow meta-model based on Web Service. This model takes advantage of the strong points of the Web service distributed computing model. Being a good extension and modification of early meta-model, it is more flexible, adaptive, and customizable. It can also smooth over the difference between various...
Business process modeling and verification is one of the main functions for all the workflow products. In order to detect the deadlock, the lack of synchronization and other issues in process modeling, the majority of workflow products needed to provide analysis and modeling functions based on formal methods. As the WS-BPEL (Web services business process execution language) is a kind of non-formal...
As important access control policy on confidentiality, original BLP model was investigated in this paper. Its characteristic in lattice and shortcoming are analyzed. Then an extended BLP model with integrity is presented. The linear order trust level is used as integrity component with compound policy. The extension deals tranquility in BLP and dynamics in BIBA.
To draw a model that can describe shipping freight rate fluctuation precisely has never been so important since the ship investment evaluated under the framework of real options. We set a general double exponential jump-diffusion model, which generates a leptokurtic distribution. Compared with geometric Brownian motion model, the general double exponential jump diffusion model is more appropriately...
During the realizing process of remote attestation, except for using trusted computing technology to protect physical security, storage security and operation security of certifier, cipher mechanism need to be combined to ensure the credibility of attestation method of certifier. This paper designs an attestation method model of property remote attestation, and applies the authentication and access...
To accomplish the optimization for bus priority on large scale road network, the distributed traffic simulation (DTS) system with the architecture based on service oriented architecture (SOA) and multi-agents is designed. In the DTS system, compound simulation models are adopted to accelerate the simulation. Simulation road network is persisted in Oracle database through object-relation mapping (ORM)...
In these times, an increasing number of costly IT projects face challenges and fail to meet the primary needs and purposes of their customers and developing teams. Many projects are not durable due to the lack of well-informed management. The need for proper management is quite obvious. Nowadays, correct definition and successful management of IT projects is a major factor of success and improvement...
An efficient polling system with M-gated services is considered. The system consists of N stations, the packets of the station have been provided with M-gated services in continuous time. By the embedded Markov chain theory and the probability generating function method, we derived the closed form expressions for the mean queue length, the mean cyclic period characteristics of the system, and the...
Easily falling into local extremum, plateaus, and fast moving targets couldn't tracked, which are main handicap to mean shift application, especially in those cases to track the multi-articulated human body fine features. Based on the analysis of the causes of the mean shift, in this paper, a new tracking approach, which is the mean shift based on color distribution and simulated annealing (SACD-MS),...
Through the actuality analysis of the medium and small-scale manufacturing industry production mode in our country, in which the agile manufacturing is implemented, the conclusion shows that it is very necessary for the medium and small-sized manufacturing industry of our country to implement agile manufacturing. And two implementation strategic and corresponding measures of two-steps on the basis...
Based on the concept of mobile business model (MBM) and the two dimensions which is the types of business continuously enrich and mobile commerce value chain continuous improvement, it proposed a multi-dimensional classification framework of MBM. Mobile business model will be divided into three categories, they are the basic mode of communication, information services and expand model of business.
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