Design And Implementation Of 3-layer Architecture Teaching Platform Based On .NET

With the development of educational informationization, network teachingappears in more and more school. How to develop teaching platform seems to beextremely important. Nowadays, most teaching platform developed on ASP andHTML, by C/S 2-layer architecture or B/S 3-layer architecture. This paper analyzedthe weakness of traditional teaching platform and then discussed a 3-layerarchitecture teaching platform based on .NET technique. The system adopts SQLServer, .NET ,C# and web service. The system architecture include user layer,function layer and data layer. User layer hand over to apply with each other with theform increment of the interface;Function layer divides the system to many models,and this layer completes the computing of application which made the system moremodularize. Finally Data layer saves system information. Function layer can visit thedatum in data layer quickly by ADO.NET, and Data layer applies the saving processin the operation of lower layer datum. By using .NET technique, we can divide theprogram and code to two different parts, thus, programming codes is more safe, easilytransported, execution efficiency is higher, and is easily assembled to disputed system.All the above advantages are attributed to .NET technique and component developingfunction with OOL C#. At the same time, the system security can be enhanced byidentity validating of Windows operation system.