On the network multimedia teaching system architecture（在網(wǎng)絡(luò)多媒體教學(xué)系統(tǒng)的體系結(jié)構(gòu)）

1、 On the network multimedia teaching system architecture Paper Keywords computer networks, multimedia teaching system software architecture Abstract network multimedia teaching system is a hardware, software, teaching content, teaching management organization of an integrated organic system. Based on

2、 a college-centered teaching-learning environment for the actual, material basis from the system, the teaching system support platform, student learning, teaching work examines four aspects of network multimedia teaching system structure, and analyze client interface and other issues. One, Internet

3、and distance education The 21st century is the century of computers and networks. Internet is its large number of users and the amazing growth rate shows great vitality. World Wide Wed on the Internet has become the most popular and most promising information inquiry, publishing and interactive way,

4、 is widely used for resource sharing and technology sharing, but these technologies in education potential increasingly evident, particularly in the open and remote teaching. The traditional distance education, the biggest drawback is the lack of real-time interaction between teachers and students,

5、resulting in inefficient teaching, students are not enthusiastic about learning How to help students solve difficult problems, to raise their enthusiasm for learning, distance learning is that we the education system during one of the issues need to be resolved. As the Internet has an impact on a wi

6、de range of quick and easy transfer of information, with near real-time interactivity, for us to solve the traditional distance education mode problems brought hope. Use the Internet to conduct distance learning, with the traditional long-distance educational model, has the following advantages: A g

7、reatly enhanced the teachers and students, students and interaction between students. 2, the asynchronous nature of learning. 3, the breadth of learning information. 4, the evaluation of timeliness. Using the Internet for distance education above excellent characteristics, to overcome the limitation

8、s of traditional distance education, it can be applied to school education, adult education, continuing education and other kinds of self-examination of distance education needs and it will in the country and the world within the field of distance education play an increasingly important influence.

9、Second, the web-based teaching model Internet-based education network environment, you can maximize the learners initiative, enthusiasm, both for individual teaching, but also can be collaborative teaching, but also can be “individualized” and “collaborative” both together, it is a new network teach

10、ing mode. Learners can study at home or in the office (via computer terminals, you can also go to learn (via a laptop computer or PDA. Internet-based education network, in addition to the implementation of the traditional lecture-style strategy, discuss strategies and individual counseling strategie

11、s style outside, but also to explore the implementation of most network featuring collaborative teaching strategies and teaching strategies. Third, network multimedia teaching system structure We need to study Internet-based multimedia teaching system is a hardware, software, teaching content, teach

12、ing management bodies of an integrated organic system, inspect it from two aspects: to understand the material basis for system implementation, you can see Its hardware structure, to understand the teaching system support platform (environment, depending on its software architecture. 1, the hardware

13、 structure (A topology. Supporting material basis of network teaching system is a practical computer network, typically a network-centric, it is based on the number of students supported, scope, student access to the network in different ways, and many other factors, has changed dramatically, organi

14、zations structure is not the same. common topology has many multimedia systems are widely applied in a star topology, ring, bus structure and hybrid structures. (2 basic physical structure of the system, although there are a variety of ways hardware organizational structure, we need to study specifi

15、c to the system, has the following modules: Access Module (dial-up and Internet access, switching modules, server modules, network management and billing module, dial-up users and LAN user modules, courseware production and development module, two-way interactive synchronous learning modules. 2, the

16、 software architecture A complete Internet-based teaching system, not only requires system software support, such as the network operating system, WEB server, FTP server, etc., also need some specialized software applications to support teaching and we are here only to research and teaching support

17、systems. (An adaptive hypermedia learning system for distance education system must be able to students of different abilities to provide different forms of teaching. Adaptive hypermedia teaching refers to the ability of the students individual characteristics, dynamic presentation with the learners

18、 current ability to learn the most relevant hypermedia-based teaching content. (2 multimedia teaching system from the functions can be divided into two parts: one is the courseware on-demand system, a synchronous broadcast delivery systems. (3 teachers and interactive tools in order to effectively s

19、upport distributed communication between teachers and students in remote, remote communication tools should not only provide traditional text-based communication, should also be provided, including graphics, audio, video and other multimedia support. (4 network database management systems and networ

20、ks braindumps are also the same as ordinary teaching exam for testing and evaluation for students, but its way to achieve a more efficient, more flexible processing means, the students should be able to test the results statistical analysis. (5 examination and evaluation system for examination and a

21、nalysis of the results of the examination and evaluation in distance education plays an important role because of using computers and the Internet, making the remote examinations in many respects superior to the traditional test. (6 teaching resource library management system. Resource library syste

22、m main function is to collect a variety of teaching resources, management, retrieval and use of which consists of two parts: CAI software libraries and learning resource library. (7 automatic answering systems - Automatic answering is an adaptive knowledge base system, which is similar to a database

23、 system, which automatically points Q and Q two artificial majority. (8 learning management system of teaching management system should have the following features: targeted counseling, troubleshooting, monitoring and implementation of collaborative intelligence personalized distance learning enviro

24、nment. (9 operating marking systems operating marking system is based on WWW collaborative assignment marking system, students can submit jobs through this system, specifically e-mail or real-time modified. Gets job correcting findings and recommendations based on teachers to modify and edit job. (1

25、0 network courseware authoring system. Development of network courseware authoring systems main purpose is to facilitate the programming does not have professional experience in the preparation of teachers of the site network teaching software built on the platform of online courses, you can directl

26、y run on the network. (11 teaching management system distance learning management system will basically cover all aspects of teaching and learning activities, such as student enrollment to students graduating from the various activities, the scope of their management is not just regulatory agencies

27、and administrative departments, but also all involved in teaching objects and resources. (12 WEB-based virtual laboratory virtual environment can target physics experiments, chemical experiments, computer composition principle experiments, subjects were different specific experimental design, which

28、requires a special experimental software. Fourth, information organization structure Information Organization has six main components: the office, synchronous classrooms, study rooms, Chat Room, BBS forums, virtual libraries. 1, office Office to complete the user registration and management. Users m

29、ust first virtual administrative offices through the WWW to be registered for student account and password, officially became a student at the school. Additionally, you want to publish some of the bulletin information, are stored here such as brochures, curriculum, etc. 2, synchronous classroom Sync

30、 classroom is actually a courseware library. Has developed courseware and other learning materials in the form of an HTML document stored on a network server, the user through a WWW browser choose their courseware or materials. 3, study room Study room allows students to conduct online tests to lear

31、n on their own to assess the effect. 4 Chat Room This is a concentrated solution in a variety of difficult students in learning problem areas, where students and students, between students and teachers, can be direct, real-time communication. 5, BBS forums BBS for teachers and students, between stud

32、ents and students to provide a place for exchanges between students can chat with each other, but also can be a subject of academic study problems, either in the subject to understand others views on hot issues, you can freely express their views. 6, the Virtual Library Virtual Library store with al

33、l kinds of electronic magazines and newspapers as well as other related electronic learning resources for students to find and learn, Virtual Library also provides some other university libraries and other university library catalog WWW address. Links to free download five, an institution remote mul

34、timedia educational design examples Through the network multimedia teaching system structure theory, is now on an institution involved in the design of multimedia interactive teaching system for an overview. 1, ask questions In considering the school network contact with various educational institut

35、ions, ask a lot of teachers and students, and I respect their concerns on issues related research, made the following requirements are summarized as follows: (A room with a remote anchor can achieve real-time two-way interactive classroom? (2 Can the anchor operating room computer screen, whiteboard

36、 and timely information to the remote on? (3 system transmission quality situation? Whether continuous successive images, video and sound are synchronized, delay, how many? (4 whether the real-time recording courseware? 2, remote multimedia interactive teaching system and features Teachers and class

37、mates made remote multimedia interactive teaching system, its features are: Classes simultaneously support multiple classrooms, a multi-classroom, account management functions, process management class courseware, different users have different school curriculum, through videos, web pages, whiteboar

38、d, screen, radio and other means to achieve the application synchronization instruction, may system status of students, real-time video surveillance, network video files shadow theater offers broadcast, live recording courses, on-demand, as well as re-broadcasting, support USB camera and a variety o

39、f video capture card. 3, system requirements To complete the above for the proposed solutions, the system requirements of the system is roughly: Client computer operating system Windows 2003/XP/vista CPU Intel 2.0G or more, memory 512M, with a sound card, headset, camera, tablet (or a touch screen S

40、erver computer Windows 2003/XP/vista, CPU Intel Core Duo 2.3G above, 1G RAM or above, 100M card, the server outbound bandwidth based on the actual application, generally require up to 100Mbps bandwidth for smooth teaching effectiveness. 4, Remote multimedia teaching system structure We envisioned an

41、 institution designed for multimedia teaching system structure and the third part spoke broadly consistent with the hardware structure, but more specific, this structure is divided into remote real-time and real-time Tutor teaching two subsystems: (A real-time remote teaching system server is instal

42、led on the internet site, the registered students and teachers at home or office can log on to the server over the network. At a scheduled time, teachers may use audio, video, software, screen, whiteboard, etc. Broadcasting means to teach, explain. teachers, between students via voice, text exchange

43、 questions. Teachers can record the contents of the class to facilitate the next broadcast, on-demand. (2 immediate counseling Answering System server is installed on the internet site, the registered students and teachers at home or office can log on to the server over the network in a predetermine

44、d period of time, students can via voice, text, ask questions, the teacher gives real answer, and through the whiteboard and other tools to communicate. thus can be used in distance education university in answering questions, exam answer counseling, remote tutoring, etc. It features up less network

45、 bandwidth, to achieve the purpose of real-time communication. 5, the client interface design The following is the author of design students to learn remote login operation area Zone 1: Ribbon - including system main function menu Area 2: System toolbar area - here mainly for some system functions s

46、uch as whiteboard, web pages display switch Zone 3: Seats and courseware display area - displays the current list of members in the classroom for teachers end also displays a list of courseware. Area 4: audio and video display window - displays the unit or from other broadcast source audio and video

47、 data. Area 5: audio and video toolbar area - a collection of some of the audio and video control, courseware recording and playback features such as a button. Area 6: courseware play area - for whiteboard writing or drawing, web browsing and screen broadcast data reception and display. Area 7: Mess

48、age text area - used to display messages, text chat discussion and twenty-two information. Area 8: System information area - displays system information, and source selection for recording, playback volume control. This interface can facilitate the realization of the regional student learning and te

49、acher management functions, and relatively intuitive, simple operation, participants do not need to master the professional multimedia technology can easily learn, and can be exchanged with other users, can be relatively complete We propose to achieve the task. VI Conclusion On the network multimedia distance education is a computer network based on full use of the software and hardware for networking, teachers teaching information passed through the network to each student, the student through a networked computer to l