LAppDesigner: The Design of a Database Application Customizing Tool Based on Linux

Due to the problem of the often changes of users' requirements leading to many modifications of code, on basis of several technologies such as visual development, Persistent object and design patterns, using object-oriented analysis and design and development methods, we design LAppDesigner (Linux Application Designer): the database application customizing tool based on Linux driven by database with functions of visual customizing and dynamic making of simple database application, to create prototype system adapting to limited changes of userpsilas requirements. We implement most of functions of LAppDesigner in this paper by using development tool Delphi for Linux.