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On the Criteria To Be Used in Decomposing Systems into Modules.

Authors :
Parnas, D. L.
Morris, R.
Source :
Communications of the ACM. Dec1972, Vol. 15 Issue 12, p1053-1058. 6p.
Publication Year :
1972

Abstract

This paper discusses modularization as a mechanism for improving the flexibility and comprehensibility of a system while allowing the shortening of its development time. The effectiveness of a "modularization" is dependent upon the criteria used in dividing the system into modules. A system design problem is presented and both a conventional and unconventional decomposition are described. It is shown that the unconventional decompositions have distinct advantages for the goals outlined. The criteria used in arriving at the decompositions are discussed. The unconventional decomposition, if implemented with the conventional assumption that a module consists of one or more subroutines, will be less efficient in most cases. An alternative approach to implementation which does not have this effect is sketched. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00010782
Volume :
15
Issue :
12
Database :
Academic Search Index
Journal :
Communications of the ACM
Publication Type :
Periodical
Accession number :
5263808
Full Text :
https://doi.org/10.1145/361598.361623