Component prototyping

As already mentioned, renovation factories should be built-up from individual tools that are as small and general as possible. This results not only in better flexibility and reuse, but also in increased control over and understanding of each tool. Apart from general tools for bringing program parts in certain standard forms and for performing program simplifications, we have developed tools for upgrading embedded SQL, for normalizing the control flow of embedded CICS, and for step by step restructuring of COBOL code [11,45].