Exercise $1$

Draw the Network Diagram. Use two$-$pass method to calculate and show the early and late starts and slack for each activity. Using the Enumeration Method list all the network paths with length. $($i$.$e$.$ A$-$B$-$C$-$D$=12)$ What is the Critical Path? How do you know it is the CP$?$

Activity Details Duration $($days$)$ Predecessor$($s$)$ A Dig Holes $3-$ B Buy Wood $2$ Dig Holes C Buy Gate $1$ Dig Holes D Erect Fence $3$ Buy Wood E Buy Paint $1$ Buy Gate F Erect Gate $1$ Erect Fence, Buy Paint G Paint Fence $2$ Erect Gate H Paint Gate $1$ Paint Fence