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With the analysis of IPv6's IPSec protocol and principles, the paper designs various modules of IPSec, and achieves IPSec function. By the analysis of the FTP under IPv4 and IPv6 environment, the paper realizes the function of FTP in data transmission of IPv6. The test results of FTP data transmission based on IPSec show that the data transmission is successful and secure, the design and realization...
Softswitching is a significant technology of the Next-Generation Network, but it can't be widely used if there isn't a provisioning system supporting it. The workflow-based Softswitching provisioning system in this paper helps engineers working together even they are not in the same location, and provides an easier way to configure the devices quickly and correctly. It not only improves efficiency...
In order to protect system service descriptor table (SSDT) and discover the hook which is hidden in kernel module, we propose two methods which work in user-mode for detecting the hook of SSDT. The methods we propose are different from the method that must work in kernel-mode after loading rootkit drivers. The first method is using \device\physicalmemory to detect the hook in user-mode, and the second...
Vocational institutions and schools are undertaking a range of considerable teaching approaches to adopt new technologies for meeting society demands. Game-based learning (GBL) is a style particularly well-suited for vocational schools because it satisfies the basic requirements of professional skills learning environment and can provide engaging learning experiences for students. Experiential learning...
With the stepping up of the new courses innovation in China and the rapid development of information technology, it is now becoming a new trend for teachers to prepare lessons collaboratively through the network. Online collaborative lesson preparation (OCLP) is a platform for teachers to create, share and utilize their knowledge. This paper adopts Ikujiro Nonaka and Hirotaka Takeuchi's knowledge...
Recently the technology of CBSD (component-based software development) and workflow become research focus, and they are important in software development. CBSD is a method of building system from down to up, which builds models for each subsystem ignoring the interaction among them, then composes all the subsystems to form the entire system. Workflow describes the relationship among business actions...
Aiming at potential pitfalls concerning interactivity and consistency of model driven development, this paper provides a new method of model transformation classification named MTCM. The method analyses the differences between the modeling language, the modeled system and the model itself, then makes a fine-granularity classification of model transformation based on the analyze. Afterwards, the classification...
This paper introduces the development of the existing SNMP, and the disadvantage of the current SNMP system. After that introduces the SNMP system that is designing and developing, the system can simultaneously support snmpv1. snmpv2c, snmpv3, and can be used in a mixed environment of ipv4/ipv6. This system in light of other similar system uses the LEAPS algorithm to judge the state of network, and...
A grating interferometer may be applied to measure the distance of equipment moving. However, some characteristics and process techniques of grating interferometer restrict the measurement precision to get improved. Based on an overall review of model and a method of subdivision and thorough analysis of the factors influencing measurement precision, this paper proposes an approach to improve measurement...
Based on the Web, service customization is a new software development modality on the industrialized software integration development platform. The design and development of the customizable cooperative work framework??s architecture and software development tool??s running platform have been described in this thesis. The business object component??s attribute and presentation modality, service customization...
In enterprise??s informationization construction, a highly efficient information system inevitably emphasize on the sharing of information, paperless office etc to provide the enterprise information-sharing environment, simultaneously, all data almost can be completely copied in a few minutes, which puts the enterprise information system in high risk, therefore the establishment of an effective and...
Model Driven Architecture (MDA) is a new approach to construct enterprise applications. It believes that the best way for system development is to insulate the design and the realization of system, to model business behavior and domain elements independently; thereby model construction is the key of MDA. At the same time, Object Management Group (OMG) put forward a series of criterions, such as MOF,...
Cubic Bezier curve is one of most basic and important drawing objects in computer graphics, and has wide applications in computer aided geometric design. How to draw curves quickly and accurately is a research direction at present. In traditional drawing algorithms, the distance between cubic Bezier curve and corresponding chord can be approximately computed with the maximum value of distance between...
The ultimate aim of software development is to produce executable code, which is the most core of the model application at the same time. Currently various models which are built by kinds of modeling technologies can not be executed. And all of these attribute to non-execution of modeling language itself. This paper studies the function of MOF in the modeling language field and behavior abstract model...
Along with the evolution of computer technology, language oriented programming came out as a revolutionary progress which beyond the object-oriented programming. In current object-oriented programming, the general modeling language UML lacks of rich syntax and semantics in the specific domain. Developing and using domain specific language model in the progress of language oriented programming can...
Aiming at the problem of apartment of model and system in software area, the reason of it is analyzed in this paper. And then an executable modeling language xKL(executable kernel language) based on MOF (meta object facility) is proposed to solve this problem. The model described by xKL has executability which lays a foundation from model to implement.
This paper introduces the basic theories of multi-agent system and the communication manner between various agents. Furthermore, a knowledge management system model about distributed data mining system based on multi-agent system is brought forward for the system distributed geographically and logically, in which the problem how to mining a large amount of distributed data can be solved. And the implementation...
Pervasive computing has found quite extensive application in recent years, thus how to deploy service nodes more adequately so as to ensure the efficacious application has become an important problem. In this paper a method of deployment based on service nodes of user groups is suggested. The user groups are first classified and then a minimal dominating set is found. On the basis of this set a weight...
This paper proposes an approach of organizing the development of a large software system. By domain analysis and design the method can provide a domain meta-model (DMM) based on the MOF model and a flexible and customizable domain specific software architecture (DSSA). In late domain implementation phase it can make use of DMM and DSSA to generate domain software. The method provides a good paradigm...
Context awareness is used to design innovative user interfaces to implement precise routing planning and optimal job scheduling and accurate control of the environment in workshop. The purpose of this work is to propose a context-aware Manufacturing Execution System (MES) with background of dynamic and complex production process in workshop. The context-aware architecture as a backbone of MES, with...
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