| The thesis, through producing the reusable pattern with packing the new reusable resources in Reusable Asset Specification (RAS), extended the reusable project package and make more of facility and standardization in applications. We may make a lot of different design patterns and the code templates during the system development, and RAS can combine these assets to construct developer's reusable asset library. It will be shared with other users.The development of BBS chats system, as a study casein this thesis, have been completed through using UML modeling tool to transfer the system models to the code frameworks (including the database access), and moved smoothly the code into Rational XDE development environment. Through using XDE's dynamic "plug-in and play " assets that are independed on the concrete program position, we have realized reusable Web Services technology development, and provide user the large grain of and transparent data access.In the system, ADO.Net is used to connect SQL Server 2000 and the Web Services is responsible for managing the database.This thesis may be useful to build shared web applications, especially build N-layers distributed systems based on Web Services. |
