The Table Below Provides Information About Tasks to Be Completed

question 82

Essay

The table below provides information about tasks to be completed on a project,the precedence relationship between tasks and the expected times required to complete each task.Using this information,represent the project tasks on a Activity-on-Node (AON)network diagram,identify all the paths and the critical path,the critical tasks,the ES,EF,LS and LF times for each task and the time estimate for completing the project.
$$\begin{array} { | l | l | l | } \hline \text { Task } & \begin{array} { l } \text { Estimated } \\\text { completion } \\\text { time (weeks) }\end{array} & \begin{array} { l } \text { Preceeding } \\\text { tasks }\end{array} \\\hline \mathrm { A } & 2 & \text { None } \\\hline \mathrm { B } & 3 & \text { A } \\\hline \mathrm { C } & 2 & \mathrm {~A} \\\hline \mathrm { D } & 4 & \mathrm {~B} \\\hline \mathrm { E } & 3 & \mathrm { C } \\\hline \mathrm { F } & 5 & \mathrm { D } , \mathrm { E } \\\hline \mathrm { G } & 3 & \mathrm {~F} \\\hline\end{array}$$

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Definitions:

Spinal Cord

The long, thin, tubular structure made up of nervous tissue, which extends from the brainstem down the back, and is responsible for transmitting neural signals between the brain and the rest of the body.

Brainstem

The lower extension of the brain where it connects to the spinal cord, involved in regulating vital functions such as heart rate, breathing, and sleep cycles.

Spinal Cord

The major bundle of nerves running down the spine, connecting the brain to the rest of the body, responsible for transmitting sensory and motor information.