Hongwei Kang

XMML: A Visual Metamodeling Language for Domain-Specific Modeling and its Application in Distributed Systems

As a practical method to simplify construction of distributed systems, Domain-Specific Modeling raises the level of abstraction beyond programming by specifying the solution directly using visual models to express domain concepts. This paper gives a visual metamodeling language which is suitable for specific domain modeling, namely XMML. It supports development and design of Domain-Specific Modeling languages (DSMLs) and domain model. A formal definition method of domain rules based on events is proposed for domain rules modeling. The paper also gives a loose coupling, scalable implementation schema for visual design of DSMLs. Finally, gives an example used XMML for metamodeling of a distributed application.

An Analysis of the Keys to the Executable Domain-Specific Model

Software development is switched from code-centric to model-centric with model-driven development (MDD). Model is expected to bring an essential leap of software development and drive the whole software development process. It means that model is not only an analysis and design specification, but also a software product which can be automatically transformed into the executable system. That requires the executability of model. This paper presents an executable domain-specific model named xDSM and discusses the keys to making xDSM executable. The keys are accuracy and integrality of the model and its behavior modeling. They all are built based on domain-specific meta-modeling.

Research on Web service-based virtual enterprise integration framework

This paper analyzes the connotations and characteristics of WSVE, puts forward the integration framework and process of virtual enterprise based on WEB service with target on the change of enterprise demands so as to shorten the time for the identification and organization of virtual enterprise, find out suitable partners among large number of available potential partners, strengthen the autonomy degree of partners and decrease the coupling degree of the integration of virtual enterprise.

Stag Hunt Game on Scale-free Networks with Variable Clustering Coefficients

The change1 of stationary fraction of cooperators Pc in Stag hunt game is studied when the clustering coefficient of scale-free networks is variable and the cost of social relations is taken into account. The is used as the parameter of the benefit utility function to transform the income function between the average income and the cumulative income, and to change the magnitude of the trigonometric probabilityto change the clustering coefficient of the network. Through the experiment, it is found that in the interval of profit and loss ratio, when the average income is used, the network clustering coefficient can obviously promote the cooperative behavior, and the cumulative income is not obvious. At the same time, the accumulated income utility function will increase the critical value of the disappearance of the stationary fraction of cooperators when the network clustering coefficient is determined. In view of this situation, the characteristics of Stag hunt game and scale free network are explained respectively.

Research on cloud computing complex adaptive agent

It has gradually realized in the industry that the increasing complexity of cloud computing under interaction of technology, business, society and the like, instead of being simply solved depending on research on information technology, shall be explained and researched from a systematic and scientific perspective on the basis of theory and method of a complex adaptive system (CAS). This article, for basic problems in CAS theoretical framework, makes research on definition of an active adaptive agent constituting the cloud computing system, and proposes a service agent concept and basic model through commonality abstraction from two basic levels: cloud computing technology and business, thus laying a foundation for further development of cloud computing complexity research as well as for multi-agent based cloud computing environment simulation.

Cloud: Complex Adaptive Service System

This paper analyzes relevant theory, also known as the complexity science. On the basis of comprehensive analysis to service-oriented systems and cloud computing solutions, it reveals some behaviors and phenomena that are difficult to be explained by traditional information science methods involved in the continuously developed cloud computing environments and proposes complex adaptive service systems CASS. It uses Multi-Agent Based Modeling method to create a cloud environment prototype based on CASS principle and designs a multi-agent model for the subject behavior rules in CASS so as to reveal a behavior rule which can help to quickly promote similar service (subject) classification aggregation in the cloud environment.

XAEDI: A XML-Based Adaptable Event-Driven Integration Framework

After combining content release, subscription middleware features, and the traditional event-based software integration together, focus on the problems in the existing system has established an adaptable and efficient events-driven integration framework with XML as the message interaction basis by means of core models defining and filter testing designs such as architecture design and event models.

Web service discovery and composition based on process model

This paper establishes WSVE process model as the object of analysis and discovers functional and non-functional QoS demands of WEB service. On the basis of these demands, the paper suggests service discovery algorithms for service and QoS. On the basis of the service discovery, it puts forward the method for transforming process model into BPEL4WS. It achieves the integration of virtual enterprise through WEB service composition and comes up with the idea for dynamic service composition which is driven by information.

Research on Web Service-Based Virtual Enterprise Model Architecture

This paper adopts web service as an integrated technology to shorten virtual enterprises, including recognition, setting-up of time, to find the right partner in a large number of potential partners which used for selection, to increase the degree of autonomy of partners, reducing the coupling degree of virtual enterprise integration. This paper proposes modeling architecture of WSVE, containing the goal view, organization view, function view and resource view. Modeling process is the process of the conception of virtual enterprise from ambiguity to clear.

Research on Web Service-Based Virtual Enterprise Process Model

Process model refers to the research on key model of virtual enterprise dynamic behavior based on Web Service. This paper proposes WSVE process Meta-Model, and presents the algorithm of analysis and simulation based on process model. Through simulation analysis of the process model, we can determine the factors such as cost, time, and others of the process itself and various links, which builds the foundation on research based on service discovery and composite of process model.