Design And Implementation Of Online Learning System Based On HTML5

With the development of network and computer,the society has entered the information age,and the competition is becoming more and fiercer.People pay more and more attention to learning.The traditional teaching model,which is face to face,has been unable to meet the needs of people's learning,so online learning as a new learning model has come into being and has become a hot spot.Online learning system has a wealth of resources,which can learn at any time.So it is a new model for the development of network teaching in the future.At present,there are many problems in online learning system,such as poor compatibility and interaction.Under this background,aiming at the status of online learning system,this dissertation uses the theory of software engineering,and applies software development technology of HTML5 and PHP,in order to research a series of the problems on design and implementation of online learning system.Firstly,the demand analysis of the online learning system is carried out from the two aspects of the overall demand and the sub functions of the system,as well as the construction of the use case diagram with UML modeling language.Then this dissertation describes the overall structure of the system from three layers:the presentation layer,the controller layer and the data layer,and then the function and database are designed in detail.The core function is divided into excellent courses,my classroom,online exam,article information,FAQ forum,chat rooms,etc.And through the UML activity diagram and sequence diagram,it has introduced design of all functions in detail.According to the need of functions,this dissertation determines to use the framework of ThinkPHP and the MySQL database to develop system,and describes the achieving process of every function.The last part is a summary and prospect.The result and overall situation of research and development of online learning system demonstrates that functions are basically completed and have achieved predetermined requirements of the analysis standard.It can ensure that the users can use online learning system flexibly and conveniently at the same time.