Construction Of The 《Multi-Media Technique And Application》 Network Course Terrace

Internet changes our work and live of way.Be already come obtaining an information, problem-solving important path.At calculator extended education realm, network's turn also certainly can't block ground along with educate continuously speed of the information-based progress, our country long range education net and campus net continuously universal, according to multimedia and network etc.'s new information the technical teaching be applied just in the quick development and network's turning multi-media teaching lesson piece and net to have a class a distance is become the important need of each school.Design a development according to teaching or study system of network, make of fuller of exertive the network multi-media technical characteristics and advantage, more valid of support learner full of the characteristic study of creation, is the point within research of the network course currently.This text the angle integrate from the network technique and the research study set out, passing to read a great deal of cultural heritage data, developping《multi-media technique and apply》network course terrace. Under the leading of the Distance Learning Technology Standard( the brief name DLTS) technical specification, the choice of the implement environment that the folio hair network course need from soft, hardware etc. made the comparison, thus choosing a kind of development of fit network course environment Linux+ Apache+ Mysql+ PHP/ Perl. The on-line course of the realization under this environment, the network resources, on-line answer,on-line test, homework after the lesson, the learner selects elective courses the debarkation, the resources inside the station search, the document download, the friendship chain connect, nine kinds of functions of forum of FAQ and message board, satisfied to develop the demand of the network course completely.The main special features of the terrace is as follows:1,Along with the fast fierce increment of the resources quantity, the manhunt information becomes more and more difficult on the Internet, all new the characteristic manhunt engine that design can the in aid of learner convenience search the information that they need efficiently, particularly is to the usage of the network knows it very few of learner. The information inspectional characteristic service terrace- information filter the system can provide the learner in time not only need of personal favour information outside, return the ability along with the interest in the learner of change make to correspond the variety in time, investigate the lately different realm of, if the free service item Search Alerts of the Northern Light can the in aid of customer track the topic of concern, when have with the related new web page of the learner need or collect exclusively, the learner will receive the E- mail to remind then. And can delete the repeated chain to connect to guarantee in search result the learner can have more better choice opportunities, putting forward to the different search result of learner various document that choose fully to clip to be provided for it to choose.2,The learner conduct and actions browse of can complete at the same time on-line study, test and with the teacher's exchanges etc. mission, have the effect of the hat you see is what you get. Such as, navigate" on-line course" button realization originally a curricular home page chain connect, the learner passes to click can enter the course of study;" The network resources" provides to connect with related resources chain of the learner study, if the learner is in the learning process not understand word, technical term...etc., can visit through the form that the super chain connect directly some provide to the learner of website;" On-line answer " with hand over with each other the form of the type forum present of, the learner can communicate with teacher directly and in time, can also pass to receive and dispatch the exchanges of E- mail;" On-line test" is a system that takes out the , independent answer, independent grade point according to the study degree of progress independence, ising similar to in the network examination system of various each kind;" The lesson practices behind" belongs to a kind of study examination of the learner, exercises after having the lesson of aim at the each chapter inside, pass can the answer judge the learner of study control the circumstance, and whether can enter the study of the next move.3,It include in the network course mold piece a leaves a message the version function, increasing the character and interests for the network course. Should navigate the main function of the page is for collecting the learner information, in order to in better management customer data;Carried out the exchanges of the teacher and student betterly at the same time. Moreover at should navigate the convenient javascript script language design to manufacture a characteristic clock, use to record the learner to study or browse time of the data in this website, these also for the teacher manages the interface and computes the learner in the backstage study of time provided the basis. The terrace carries out the technique to mainly include:1,That terrace is according to B/ S of, namely browser/ server mode.The customer carries to need a set to install to have the operate system only:9 Xs of WINDOWS(2000), XP or XWINDOW Linux etc.s can get to the Internet, using any browser to browse resourceses of Internet all all right, do not need another software with any gearing in principle. The server carry PC and server of Linuxes that configurings according to the Intel and should be a system terrace for choose. Many applied systems include codes of Linux and can find out and download down the usage on the net, general softwares all adopt the GPL or copyright of GNUs, have no time restrict of share software. Well worth mentioning of is, many companies that does to increase in value the service and development for the Linux bound these services of many applicationses to need not after installing the Linux through while publish Linux any install, can use right away, and movement of Linux to to compare with breadth, the calculator hardware request, can circulate from common PC machines to the business enterprise class servers. Can say, use the Linux build up a network server's is very simple and fast.2,The realization of that terrace, adopted the Apache to be the server of WWW, PHP+ MySQL+ the Dreamwaver is the main environment of the software development, the RealServer conduct and actions flows the medium server. The WWW server software contain a lot of kinds, because the Apache is free, can download the Apache latest edition on many websites, the Apache install easy, usually need to carry on the simple modification to the document of httpd.conf only, and the document of httpd.conf can read sex better, the learner modify very convenient, so what that terrace use is an Apache.In the network course, to involve the material database and it is inspectional, the support of the demand database, in consideration of pure and two amount of interview with curricular network and datas swallow to vomit the quantity, so that terrace choice uses the MySQL. The MySQL is a multi-threading of, the structure turns to search the language( SQL) database server, its movement speed is very quick, the learner use very simple. On the other hand the cost of RealServer is low, being good enough to let the learner sets up a perfect video frequency environment, on the other hand the RealServer has the edition of different terrace, in order to transplanted to provide the possibility between the different terrace from now on, so, broadcast the video frequency to then choose to flow the medium server with the RealServer conduct and actions on the network.3,The management of the resources inside the station adopted from the B/ S system structure that the enlargement education resources database of the type constuct, this kind of structure is also the resources management to compare a kind of database system structure of the fad currently. The system's structure adoption applies the server, the database server, the application server and databases is with each other and visit the technique, making CGI and ASPs combine together, insuring complete sex of the system. The learner can inspect the text this information not only, carrying on searching the engine for some multi-media teaching resourceses;Can adopt the plait sorting process lieutenant general still in the resources it press video frequency resources, the audio frequency resources and the picture resources classifications, each assign an address zone for fix, thus the learner can find out in the homologous address zone to should of resources, can also find out the integrated voice to be like to educate the resources in the comprehensive virtual database of the address zone.This text designs the terrace of the realization to have the hat you see is what you get, convenience while manufacture the network course fast, the interface beautiful etc. characteristics, pass the gossip version function at the same time betterly the realization collects the exchanges of the learner information, easy to teacher and learner. Present stage originally the function of the system still not overall, but because this system have to compare and can enlarge sex goodly, need to do the jot to change to move only and then can increase other functions.