Database-based Multimedia Network Courseware

Wth the fast development of information technology and Internet, theE Internet-based distance education is superior to any other mode in modern distanceeducation, which has the trait of digital fOrm, multmedia, rich infOrmation, goodinteractivity and large cover. The Internet-based distance education breaks thr0ughthe limitation of traditional time and space, as a result, a person can study anycurricu1um taught by excellellt teachers at anytime, and anyWhere.The Intemet-based distance education has three base items f hardware,software and resource. The role that the hardware and software play in theInternet-based distance education weakens, and the resource becomes the mostimportant factor. TO promote the development of modern distance education,Education Department organizes and implements "Modern Distance EducationPrOject". It points out that network conStruction is the base, and resourceconstruction is the core in the development of modern distance education.Howevef, the fact is that the hardware is superior to the software, and there are fewtrucks and materials in the InfOrmation High Way The lack of resources in theInternet has become the main obstacle of the Internet-based distance education, soscales and serials of Internet-based resources is highly demandedOn1ine courseware, as the main fOrm of the Internet-based education resources,plays a key role in the Internet-based education. Compared with traditionalComputer-Assisted courseware, online courseware is more flexible, selective andself decided. Teachers and students may se1ect relevant content according to therequirements of themselves, and at the same time they can find other relevantintbrmation on Internet, which provides a resource-based favorab1e learningenvironment fOr learners. Furthermore, the designer of online course may a1ter thecontents and fOrms of course conveniently at any time in the light of the newlycontents of discip1ine and the new development of computer technology.The exploration of online courseware is under studying, the commonproblems are f the circle of development is long, the cost is high, the maintenanceand update is difficult, the flexibility is little, practicality, compatibility andportabllity is poor, the instructional method and instructional design is not bettertaken on, so do the interactivity and cooperation hetween teachers andstudeflts .All these problems 1imit the ve1ocity and quality of the development ofonline courseware, so it is necessary to inquire into a kind of mode of thedevelopment of online courseware. Using the application of database in theWeb-based application programs fOr reference, we put the database into the use of3the development of the online courseware, the idea of database-based multimediaonline courseware is developed, which takes the better advantage of online. courseware.With the help of dynamic technolo8y of Web-based database, thedatabase-based multimedia online courseware obviously improves the flexibi1ity,real-tirne and intelligence. First, there is a lot of boltimedia data in the database,and the database system provides the function of parallel operation, which isadaptable to the Internet. The function of data operation and data maintenance-isused to add, delete and update the relevant conient. The trait of database makes iteasy to exPand, maintenance and update the infOrmation. Second, the users can doa characteristic learning by selecting different conten and media according to theirown requirements. In the same time, because the bandWidth is taken intoconsideration, the effect of the database-based multimedia online courseware isoptimized. Last, the oper8tion on the database is unifOrm in fOrmat and theconstruction doesn't change, so the rebuild of the database-based multimediaonline courseware is easier. Furthermore, the most online courseware is favorableto the database-based application programs, so the database-based multimedi...