id: 05845624
dt: j
an: 05845624
au: Shankar, N.Ravi; Sireesha, V.; Rao, P.Phani Bushan
ti: An analytical method for finding critical path in a fuzzy project network.
so: Int. J. Contemp. Math. Sci. 5, No. 17-20, 953-962 (2010).
py: 2010
pu: Hikari Ltd, Ruse
la: EN
cc: 
ut: critical path method; trapezoidal fuzzy number; fuzzy project network
ci: 
li: http://www.m-hikari.com/ijcms-2010/17-20-2010/index.html
ab: Summary: Critical path method (CPM) techniques have become widely
    recognized as valuable tools for the planning and scheduling of large
    projects. The aim of this paper is to present an analytical method for
    measuring the criticality in a fuzzy project network, where the
    duration time of each activity is represented by a trapezoidal fuzzy
    number. In this paper, we use a new defuzzification formula for
    trapezoidal fuzzy number and apply to the float time (slack time) for
    each activity in the fuzzy project network to find the critical path.
    The defuzzification formula used for critical path can not be applied
    to the trapezoidal fuzzy number having equal elements because that
    trapezoidal fuzzy number is a crisp number. The proposed method can
    overcome the drawback of the existing fuzzy CPM method. We use examples
    to compare our proposed method with the existing method. The comparison
    reveal that the method proposed in this paper is more effective in
    determining the activity criticalities and finding the critical path.
rv: