Three-Time Estimates

Three-Time Estimates

Each activity has optimistic, most likely, and pessimistic estimates.

highlighted = computed this step

Optimistic

A's optimistic estimate is 1. It is the small estimate in this pinned row.

oA=1o_A=1
Three-time estimatesEach activity has optimistic, most likely, pessimistic, and expected time columns.three-time estimatesoptimisticmost likelypessimisticexpectedA1232B2343C1257/3D2222

Most likely

A's most likely estimate is 2.

mA=2m_A=2
Three-time estimatesEach activity has optimistic, most likely, pessimistic, and expected time columns.three-time estimatesoptimisticmost likelypessimisticexpectedA1232B2343C1257/3D2222

Pessimistic

A's pessimistic estimate is 3.

pA=3p_A=3
Three-time estimatesEach activity has optimistic, most likely, pessimistic, and expected time columns.three-time estimatesoptimisticmost likelypessimisticexpectedA1232B2343C1257/3D2222

C row

C has estimates 1, 2, and 5. This row will produce a fractional expected time.

(oC,mC,pC)=(1,2,5)(o_C,m_C,p_C)=(1,2,5)
Three-time estimatesEach activity has optimistic, most likely, pessimistic, and expected time columns.three-time estimatesoptimisticmost likelypessimisticexpectedA1232B2343C1257/3D2222