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    Detailed PERT/CPM computations

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    You understand that it is imperative to identify and manage bottlenecks in all types of processes, relate the capacity and performance measures of one process to another, and use that information to determine the firm's best service solution. Your company is setting up an assembly line to produce 192 units of bottles per 8-hour shift. The following table identifies the relevant data:

    Work Element Time in seconds Immediate Precedence
    A 40 None
    B 80 A
    C 30 D,E,F
    D 25 B
    E 20 B
    F 15 B
    G 120 A
    H 145 G
    I 130 H
    J 115 C,I

    Using a precedence diagram illustrate a possible solution for the assembly line. You are also required to discuss the desired cycle time (in seconds), the theoretical minimum number of stations, any balance delays and the efficiency of your proposed solution.

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    Solution Preview

    A detailed and step-by-step solution is attached. Filename is Step-by-step-guide_2003.doc.

    In creating the PERT/CPM Network, you have to consider the following:
    a.) forward pass - the direction and computation of time is from left to right. There were two dummy lines created (the dashed lines) because in PERT/CPM no nodes should be left ...

    Solution Summary

    The solution contains a detailed explanation and techniques in the computation and analysis of a Project Evaluation and Review Technique/Critical Path method (PERT/CPM).