Kemerer [Comm. ACM, 30.5, 1987] reports average errors (in terms of … of COCOMO. Other independent studies [Kitchenham & Taylor, ICL Technology J, 4.3 1984; Miyazaki & Mori Proc. 8th Int'l Software Eng. Conf. 1985] have also … [In studies of effort estimation via function points] quite mixed results have been reported [Jeffery et al, IEEE Trans. Software Eng., 19.5 1993; Jeffery & Stathis, Proc. NASA Goddard Software Eng. Workshop, 1993; Kemerer, Comm. ACM, 30.5 1987; Matson et al, IEEE Trans Software Eng. 20.4 1994].
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