A software maintenance survey
Yip, S.W.L.
Lam, T.
Dept. of Comput., Hong Kong Polytech., Kowloon ;
This paper appears in: Software Engineering Conference, 1994. Proceedings., 1994 First Asia-Pacific
Publication Date: 7-9 Dec 1994
On page(s): 70-79
Meeting Date: 12/07/1994 - 12/09/1994
Location: Tokyo, Japan
ISBN: 0-8186-6960-8
References Cited: 14
INSPEC Accession Number: 4847400
Digital Object Identifier: 10.1109/APSEC.1994.465272
Current Version Published: 2002-08-06
Abstract
We have conducted a survey of the state of software maintenance in
Hong Kong, as the software industry in Hong Kong and south China is
expanding. The survey instrument is derived from the previous work of
Lientz and Swanson (1981) and Dekleva (1992). We sent out about 1000
questionnaires and received about 5% replies. Our results indicate that,
in Hong Kong, about 66% of the total software life cycle cost is spent
on software maintenance. The average application system is about 5 years
old, consisting of 577 programs and 308000 lines of code. Making
enhancements appears to be the most costly group of maintenance work
(38% of all maintenance work undertaken), followed by error correction
(16%). The most often cited problems in software maintenance are staff
turnover, poor documentation and changing user requirements
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