Research on domain component library technologies based on more-levels reuse

The paper tried to give an answer to major challenge of software crisis and all kinds of changes bringing that software system faced. Method of object-oriented software reuse development that has been taken as mind and method of software system in domain engineering is presented.And then,object-oriented software reuse waterfall model(OO-SRWM) that has constructed domain component repository is provided.Content,architecture and important technique about OO-SRWM are detailed.Finally,more-levels reuse which serves software system development of domain engineering and application engineering is discussed.Through OO-SRWM based on more-levels reuse developing domain component repository,it is high in class inheritance,low in class coupling,high in class sealing,low in class diversifying,high in efficiency of method reuse and efficiency of class reuse.OO-SRWM provides systematical,standardized and useful software development model to construct domain component repository in domain engineering.More-levels reuse provides technical ensure to quickly construct complete domain component repository and reconstruct application system.