ISBN : 978-81-963532-2-3 (E-Book) Where,Kisthetotaleffortexpended(inPM)intheproductdevelopmentandListheproductsizeinKLOC, tcorrespondstothetimeofsystemandintegrationtestingandCisthestateof d technologyconstantand reflectsconstraintsthatimpedetheprogressoftheprogrammer Nowbyusingtheabove expression it is obtained that, 3 4 K= L3/C t k d Or, 4 K= C/t d For the sameproduct size,C = L3/ C3is a constant. or,K1/K2 = td2 k 4/td1 4 or,K1/t d or,cost1/t d (asprojectdevelopmenteffortisequallyproportionaltoprojectdevelopment cost) From the above expression, it can be easily observed that when the schedule of a project iscompressed, the required development effort as well as project development cost increases inproportion to the fourth power of the degree of compression. It means that a relatively smallcompression in delivery schedule can result in substantial penalty of human effort as well asdevelopment cost. For example, if the estimated development time is 1 year, then in order todevelop the product in 6 months, the total effort required to develop the product (and hence theprojectcost) increases 16times. 4 k 175 Software Engineering Keerthana P, Manasa KN, Ganga D Bengal
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