Gant Chart一問

下面資料, 取自 http://en.wikipedia.org/wiki/Gantt_chart
A Gantt chart is a popular type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Some Gantt charts also show the dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line (also called "TIME NOW" or "DATA DATE").
下列microsoft 網站, 提供了用 excel 晝 gantt chart 的資料:
http://office.microsoft.com/en-us/excel/HA010346051033.aspx