Project Scope and Time Management Unit 7
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Questions and Answers

What is the main purpose of a Gantt chart in project time management?

  • To ensure that all activities are planned for, their order of performance is accounted for, and activity time estimates are recorded (correct)
  • To develop a cash flow statement
  • To illustrate interrelationships and dependencies between activities and resources
  • To create a work breakdown structure (WBS)
  • What should be established before creating a Gantt chart?

  • Work breakdown structure (WBS) (correct)
  • Procurement schedule
  • Resource histogram
  • Network diagram
  • What do the thick bars represent in a Gantt chart?

  • Milestones
  • Resource allocation
  • Dependencies between activities
  • Activities' duration (correct)
  • What is a limitation of Gantt charts?

    <p>They do not adequately illustrate interrelationships and dependencies between activities and resources</p> Signup and view all the answers

    What is the calendar timescale in a Gantt chart typically shown in?

    <p>Days, weeks, hours, months, or years</p> Signup and view all the answers

    What should a Gantt chart be developed as for the procurement schedule, resource histogram, and cash flow statement?

    <p>A time structure</p> Signup and view all the answers

    What do the thin connecting arrows represent in a Gantt chart?

    <p>Dependencies between activities</p> Signup and view all the answers

    What is the benefit of using a Gantt chart in project time management?

    <p>It is a low-cost, easy-to-understand method</p> Signup and view all the answers

    What is an activity float in a Gantt chart?

    <p>A float at the end of an activity from early finish to late finish, denoted as a dotted line with a symbol</p> Signup and view all the answers

    Why are some project managers reluctant to show activity floats in a Gantt chart?

    <p>Because it could encourage working to the later finish</p> Signup and view all the answers

    What is the purpose of a hammock in a Gantt chart?

    <p>To gather together a number of sub-activities into one master activity</p> Signup and view all the answers

    What is an event in a Gantt chart?

    <p>A key point in time with zero duration</p> Signup and view all the answers

    What is the line of balance technique used for?

    <p>To calculate required resources for each stage of production</p> Signup and view all the answers

    What is the purpose of a revised Gantt chart?

    <p>To mark actual progress on the original plan</p> Signup and view all the answers

    What is the main purpose of a Rolling Horizon Gantt chart?

    <p>To focus on a short period ahead</p> Signup and view all the answers

    What is a major limitation of using a rolling horizon Gantt chart on its own?

    <p>Planned activities not being worked on may be conveniently forgotten</p> Signup and view all the answers

    What is the main purpose of a Trend Gantt chart?

    <p>To enable a synopsis of the direction and trend of a project at a glance</p> Signup and view all the answers

    Why is sorting an iterative process?

    <p>Because data becomes more structured after each iteration</p> Signup and view all the answers

    At what level can a Trend Gantt chart be drawn to limit the number of activities?

    <p>Hammock level</p> Signup and view all the answers

    What is the benefit of subdividing scope into milestones?

    <p>It makes data capture more accurate</p> Signup and view all the answers

    What is the purpose of incorporating a network diagram with a production schedule?

    <p>To establish the start and finish dates for each activity</p> Signup and view all the answers

    What is a characteristic of a Logic Gantt chart?

    <p>It shows the activity's logical relationships explicitly</p> Signup and view all the answers

    What is one of the benefits of using a Gantt chart?

    <p>The activity float is easier to comprehend when displayed</p> Signup and view all the answers

    What is a prerequisite for forecasting the procurement schedule and cash flow statement?

    <p>A scheduled Gantt chart</p> Signup and view all the answers

    What is one of the shortcomings of a Gantt chart?

    <p>Showing interrelationships</p> Signup and view all the answers

    What does a Gantt chart ultimately show?

    <p>What has to be done and when it needs to be done</p> Signup and view all the answers

    Study Notes

    Gantt Charts in Project Time Management

    • Gantt charts provide a standard format for displaying schedule information by listing activities with their corresponding start and finish dates on a calendar.
    • Activities listed should coincide with the information on the WBS, activity, and milestone lists.
    • Low-cost and easy to understand, Gantt charts use horizontal bars to depict each project activity along a timeline.
    • Key purposes of Gantt charts include:
    • Ensuring all activities are planned for
    • Accounting for the order of performance
    • Recording activity time estimates
    • Developing overall project time

    Drawing a Gantt Chart

    • Tabular reports provide the structure to present information, which should be used in conjunction with other planning documents.
    • It's a good idea to establish the WBS before creating a Gantt chart.
    • A simple Gantt chart example is shown for a house-building project, with activity data listed and depicted with a calendar timescale.

    Features of a Gantt Chart

    • An activity float shows a ‘float’ at the end of an activity from early finish to late finish, denoted as a dotted line with a symbol (usually a diamond or upturned triangle) at the end.
    • Some software packages allow for ‘select’ or ‘filter’, ‘sort’ or ‘order’ functions to aid in formatting.
    • A hammock is a summary activity that gathers together a number of sub-activities into one master activity, which can link with the WBS.
    • An event is a key point in time with zero duration, also called a keydate or milestone, which gives focus to when work must be completed and provides a clear measure of progress.

    Variations of the Gantt Chart

    • Revised Gantt chart: actual progress can be marked on the original plan, drawn above, inside, or underneath the original bar, to establish progress trends.
    • Rolling Horizon Gantt chart: a simplified chart focusing on a short period ahead, based on the latest data, and worked on by someone close to the center of action.
    • Trend Gantt chart: a progress trend chart showing the direction and trend of a project at a glance, drawn by hand on the original Gantt chart and photocopied for circulation.
    • Logic Gantt chart: shows activity logical relationships explicitly in Gantt chart format, appropriate for modest-sized projects.

    Benefits of the Gantt Chart

    • Easy to assimilate chart presentation
    • Displays activity progress very simply and clearly
    • Activity float is easier to comprehend when displayed using a Gantt chart
    • Scheduled Gantt chart is a prerequisite for forecasting procurement schedule and cash flow statement
    • Revised Gantt chart is an excellent management tool
    • Can be used to communicate and disseminate schedule information
    • Key document for management decision-making function

    Shortcomings of Gantt Charts

    • Does not adequately illustrate interrelationships and dependencies between activities and resources
    • Limited in multiple decision-making situations

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    Description

    This quiz covers the basics of Gantt charts, a visual tool used in project time management to display schedule information and ensure all activities are accounted for.

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