Homework #10
Due Monday, Nov. 22, 20 points

Planning and Control Analysis

Below are a set of activities involved in applying the spiral model to the problem of determining the appropriate mix of custom software and commercial-off-the-shelf(COTS) software for an application. Each activity is also characterized by its duration in weeks and the predecessor activities which must be completed so that the activity can start.

  • Draw the PERT chart for the set of activities.

  • Determine the critical path and the minimum completion time.


    • Activity No. Duration (weeks) Predecessor Activities Activity
    A1 2   Indentify, prioritize needed capabilities
    A2 1   Identify, prioritize cost, schedule, and quality constraints
    A3 3 A1, A2 Evaluate COTS alternatives
    A4 2 A1, A2 Evaluate custom alternatives
    A5 3 A3, A4 Evaluate mixed COTS/custom alternatives
    A6 3 A5 Identify, resolve technical risks
    A7 4 A5 Identify, resolve management risks
    A8 2 A6, A7 Decide whether to proceed, which alternatives to elaborate
    A9 1 A6, A7 Document results
        A8, A9 Finish