Gantt chart is "a graphical representation of the duration of tasks against the progression of time"
A project is made up of a set of different tasks and for each task there is an allocated period of completion. For example, a programming project may have the following steps: planning, researching programming language, the actual programming phase, beta testing and final report and release.
In order to follow each of these tasks, a GANTT chart will have each task on the Y-axis and the total period of time in which the project is due, on the X-axis, broken down in units (days, months, etc.). Each task is represented by a horizontal bar, covering the time span. For example, the programming phase may take from 15th of January to 15th of April. After mapping each task on the chart, the horizontal bars are filled to evaluate how much of the project is completed. This way, by drawing a vertical line at a certain date, the report date, you will be able to evaluate how much of the work is completed on each task. The main disadvantage with Gantt charts is that they do not report "task dependencies"
and you are not able to evaluate how much your project is suffering because one task is not performed in time.
Flow Charting
Flow charts are used in "defining and analyzing processes"
. The typical flow chart is formed of different shapes, with strict significance, with text describing tasks in each of them and lines interconnecting them. The shapes are used to give a textual description of each step. Regularly, diamonds are sued...
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