As organizations operate in an uncertain world, errors are unavoidable. Thi
s article analyses two types of organizational error based upon a distincti
on between clear and fuzzy structures. Clear structures are based upon prec
ise rules which enable a clear definition of decision types and the procedu
res for making those decisions. Fuzzy structures are based upon flexible ru
les by which decision making becomes a "muddling through" process. Errors o
f tightness occur when structures are too tight for their technical and Str
ategic contexts; this means that decision making tends to be too constraine
d by procedures, hierarchical rules and other paraphernalia of bureaucracy.
Errors of looseness occur when structures are too fuzzy for their contexts
; this means that decisions could be more efficiently made by a more system
atic use of procedures and rules. This article reports results from a study
of the implementation of new technology in a group of twenty polymer proce
ssing companies in the UK. Overall, the companies, as reported by the chief
executives, saw themselves as somewhat too crisp in their decision making.
When the relationship between organizational errors and effectiveness was
examined, no clear cut pattern emerged for either of the two measures of ef
fectiveness employed. The measures of effectiveness are comparative perform
ance and awareness of other firms in the field. However, if the contextual
factors of strategic mix and technological objectives were considered, a pa
ttern did emerge. When the companies were divided into three groups accordi
ng to the mix of strategies and technological objectives used, both tightne
ss and the measures of effectiveness varied systematically. Strategy was as
sessed by means of a modified form of Miles and Snow's (1978) typology whic
h defines a "prospector strategy" as a strategy involving continuous innova
tion. In contrast a "defender strategy" emphasises price competition and op
erating efficiency. The most effective companies were those which had a mix
of prospecting and defending strategies and which recorded most errors of
"tightness". (C) 1998 Elsevier Science Ltd. All rights reserved.