A project is represented by the activity durations (in days,estimated at 90% likelihood of completion)and precedence requirements shown in the table.What is the length of the project buffer if this project is managed using critical chain methodology? Use the rule of thumb approach. $$\begin{array} { | l | l | l | l | l | l }
\hline \text { Activity } & \text { Predecessor } & \text { Lengenth } & \text { Activity } & \text { Predecessor } & \text { Length } \
\hline \text { A } & - - & 18 & \mathrm { E} & \mathrm { C }, \mathrm { D} & 13 \
\hline B & - & 16 & \mathrm { F} & \mathrm { C }& 9 \
\hline \mathrm { C } & \mathrm { A } & 22 & \mathrm {G} & \mathrm { E } , \mathrm { F } & 15 \
\hline \mathrm { D } & \mathrm { B } & 14 & & & \
\hline
\end{array}$$

A)8.5 days
B)17 days
C)24.5 days
D)34 days

Question

A project is represented by the activity durations (in days,estimated at 90% likelihood of completion)and precedence requirements shown in the table.What is the length of the project buffer if this project is managed using critical chain methodology? Use the rule of thumb approach. $$\begin{array} { | l | l | l | l | l | l } 
\hline \text { Activity } & \text { Predecessor } & \text { Lengenth } & \text { Activity } & \text { Predecessor } & \text { Length } \
\hline \text { A } & - - & 18 &  \mathrm { E} &  \mathrm { C }, \mathrm { D} & 13 \
\hline B & - & 16 &  \mathrm { F} & \mathrm { C }& 9 \
\hline \mathrm { C } & \mathrm { A } & 22 & \mathrm {G} & \mathrm { E } , \mathrm { F } & 15 \
\hline \mathrm { D } & \mathrm { B } & 14 & & & \
\hline
\end{array}$$

A)8.5 days
B)17 days
C)24.5 days
D)34 days

Quizplus · Accepted Answer

In critical chain project management, the project buffer is typically calculated as 50% of the length of the critical path. The critical path here is A-C-E-G, with a total duration of 68 days (18+22+13+15). Therefore, the project buffer is 34 days (50% of 68 days).

A Project Is Represented by the Activity Durations (In Days,estimated