Issue No.03 - May/June (1986 vol.3)
G. Arango , University of California
Porting an undocumented program without any source changes demonstrates the value of a transformational theory of maintenance. The theory is based on the reuse of knowledge.
G. Arango, I. Baxter, P. Freeman, C. Pidgeon, "TMM: Software Maintenance by Transformation", IEEE Software, vol.3, no. 3, pp. 27-39, May/June 1986, doi:10.1109/MS.1986.233411