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Issue No.06 - June (1975 vol.8)
pp: 66
L. Robinson , Stanford Research Institute
ABSTRACT
The major idea of SP is to divide a programming task into easily understandable units. Within these units, it may be of little consequence whether the language used is COBOL, FORTRAN, PL/1, or any of the new SP languages. Language design (such as control structures) may determine the size of the program which is the largest easily understandable unit. This is at best a local optimization. I have seen well-structured programs written in assembly language, FORTRAN, and APL?none of which are known for their facilities to enhance structured programming. However, any language claiming to enhance SP should provide a facility for connection among program units: this could be as complex as the abstract type mechanisms of Liskov's CLU or Wulf's ALPHARD, or it could be a simple procedure/macro facility. Poor design of these features limits the effectiveness of languages like FORTRAN and COBOL in the construction of well-structured programs. These facilities are often faked by a preprocessor or by system convention.
INDEX TERMS
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CITATION
L. Robinson, "A Formal Design for Softare", Computer, vol.8, no. 6, pp. 66, June 1975, doi:10.1109/C-M.1975.218994
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