Cai Multimedia Courseware Platform Design And Implementation

Being an advanced teaching method,the multimedia teaching is becoming more and more widespreaded. Although there are many kinds of commercialized multimedia creation tool, these development tools request that the user has certain computer skill and operational level. When teachers establish coursewares, the edition and typesetting of curriculum content are quite tedious.Most of the time wastes in the adjustment and the design of layout.They cannot grasp the multimedia technologies and utilize it in the teaching so well, which will fetter the development of the multimedia teaching to a certain extent.Facing present situation of the CAI (Computer Aided Instruction) multimedia courseware manufacture, the project first analyzes some insufficiencies of the existing multimedia creation tool software,designs one kind of quick, simple multimedia courseware platform frame suitable for the teacher and the teaching characteristics, and develops a concrete multimedia courseware platform assembly system to solute inconvenient questions of the existing multimedia courseware manufacture software.This article first elaborates the related content of the CAI multimedia courseware designing platform frame, including platform technology route of the CAI multimedia courseware platform, software function structure, main module component relations, then elaborates the functions and demands of multimedia coursewares platform frame, and developes a concrete multimedia courseware assembly system.Developed with Delphi, used ActiveX and the COM module technology, this platform realizes broadcast and revision to many kinds of media type document, And realizes broadcasting the courseware in the browser useing technical about HTTP, DHTML, CSS, SCRIPT and so on.From the four links of organization, edition, typesetting, broadcasts of the CAI courseware, this article elaborates and explanates the main design characteristic of the platform separately(1)In organization of the source material, teachers can directly use many kinds of type material document without revise and can even use the existing teaching courseware source material directly such as HTML,PPT,WORD,FLASH,Authorware and manufactures a new courseware with the different courseware from different teachers;(2)In the edition aspect, the courseware content presents by the homepage form ,simply and easily to operate, avoids the complicated editing of the text document courseware in PPT. The courseware source material use multistage directory tree level management, advantageous for the localization, edition, typesetting;(3)In the typesetting aspect, prominently tows and puts, the assembly of source material and the production management of courseware directory tree is carried on through tows and puts;(4)In the broadcast aspect, it does not need the plug-in unit, and can broadcast directly in the browser.In view of the fact that the demonstration draft of PowerPoint(PPT) is the most useful multimedia courseware, the courseware manufactured by this platform may contains the ready-made PPT courseware directly in the directory tree, and can make PPT courseware production to multistage directory tree structure automatically, which is advantageous for the localization, demonstration, edition of each slide.Finally, through comparison with similar vanguard technology at home and abrord, the article makes a comprehensive appraisal to this system, and has summaried the merits and shortcomings of the system, and proposed the improvement suggestion, and forecasts the system.