关键词: 模型驱动开发, 代码生成, 代码映射, 代码逆向

Abstract: The research of the techniques serving for code generating，mapping and reversing is explained，and the corresponding applications into the development of the Domain-Oriented Modeling Tools which support the Model-Driven Development（MDD） are introduced.Code generating is a process of taking evolvements from the code template based on meta-data，key mechanisms for this evolvement include macro-substitution，conditionally code-exporting and circularly code-exporting.Code mapping needs to locate the code segments which mapping the corresponding model information separately，and replace them with the production of the code-generator respectively.Code reversing is realized by parsing the code segments mentioned before and extracting the model information from the segments.Grammars used to design the code templates and conformed by code-parsing are analyzed.The software implementation is also put forward.The applications in diversified environments testify the solution has good adaptability and expansibility.

Key words: Model-Driven Development（MDD）, code generating, code mapping, code reversing