Abstract: This paper deals with a software development approach of executable metamodel to solve the great difficulties in present software devel opment to some extent, which are complex, diverse and changeable. Based on the Meta Object Facility model of Object Management Group, the key technology of executable metamodel was researched through the language engineering approach. And the key parts include the architecture of executable metamodel, abstract syntax, concrete syntax and semantics. At the same time, as an example, an aspectoriented language was used to illustrate the approach.

Key words: software development approach, executable metamodel, syntax, semantics