| Abstract: | To study the problems of modifiable software, the Software Technology project has investigated approaches and methodologies that could improve modifiability. To test our approaches tools based on data abstraction—a design and programming language and a module interconnection language—were built and used. The incorporation of the module interconnection language into design altered the traditional model of system building. Introducing novices to our approach led to the formalization of new models of program design, development, and evaluation. |
