1. Information System Analysis
Lab 2&3

2. Objectives In this lab we will learn : Examples.
How To Set Up A Gantt Chart.
How Add data to a Gantt chart.
Tasks.
Dependencies (linked tasks).
Data.
Timescale.
Examples.

3. Gantt chart
Gantt chart use graphical elements, such as bars and arrows, to represent tasks and the dependencies between them, and track how changes in one task affect the others.
You can also group several subordinate tasks under one summary task and add useful data such as descriptions, required resources, and completion percentages to each task.
In a Visio Gantt chart, tasks are displayed as bars on a timescale.

4. To Set Up A Gantt Chart
In Visio, on the File menu, point to New, point to Project Schedule, and then click Gantt Chart.

5. To Set Up A Gantt Chart(cont…)
2.Click the Date tab, and then make the following choices:
Number of tasks:  Type the number of tasks you want to start with. You can add more later.
Duration options : In the list, click the units that you want to use to indicate how long tasks will take.
Start date: click the date on which your project begins.
Finish date :click the date on the calendar on which your project ends. If necessary, you can extend the timescale later.

6. To Set Up A Gantt Chart(cont…)
Major units: Choose the largest unit of time, such as years or months, that you want to use in the timescale.
Note that if you choose anything smaller than years for a relatively long project, the timescale will be extremely long.
Minor units    Choose the smallest unit, such as days or hours, that you want to use in your timescale.

7. To Set Up A Gantt Chart(cont…)
3.Click the Format tab, click the shapes and labels that you want to use on task bars, milestones, and summary bars, and then click OK.
NOTE    If you aren't sure what formatting to choose, just use the default choices. You can change the formatting later.

8. To Set Up A Gantt Chart(cont…)
After you set up a Gantt chart, a generic chart frame appears that resembles the one shown here.
Timescale column
Major unit
Minor unit

9. To Set Up A Gantt Chart(cont…)
Task Name column, click a cell, and then type to replace the generic text with a specific task name.
Start and Finish columns, To change the date, click a cell, and then type.
The Duration column, updates automatically as you type new start and finish dates. You can also type one of the dates and the duration to indicate the length of a task.

10. To Set Up A Gantt Chart(cont…)
the Timescale,
major units are on top and
minor units are on the bottom.
The timescale starts and ends with the start and finish dates you specified.
As you add task start and end dates or durations, task bars appear in the area below the timescale, and the area expands.

11. Add data to a Gantt chart
you can fill the frame with data that reflects the details of your project schedule. You can add the following schedule elements:
Tasks.
Dependencies (linked tasks).
Data.
Timescale.

12. Tasks
Each task in a Gantt chart occupies a row in the chart frame. When you type task names in cells in the Task Name column, task durations are represented as task bars in the area under the timescale.

13. Tasks Goal Action To Take Change a task name.?
Set or change task duration.
Click the cell in the Gantt chart frame that contains the date or duration that you want to change, and then type the new information.
 NOTE    Type a duration as follows:
1h for 1 hour.
1d for 1 day.
1w for 1 week.
1m for 1 month.
Add new tasks at the bottom of the Gantt chart.
Select the Gantt chart frame by clicking the solid line that surrounds the chart. To create new task rows, drag the green selection handle at the lower center of the frame.
Add a new task between two existing tasks.
Right-click any cell in the row that you want a new task row to appear above, and then click New Task.

14. Tasks Goal Action To Take Add percent complete indicators to tasks.
Right-click the shaded portion at the top of the column to the left of where you want a percent complete column to appear.
Click Insert Column.
Under Column type, click % Complete, and then click OK.
As you make progress on a task, type the percentage of the task completed in the new column. A percent complete indicator appears in the task bar.
Delete a task.
Right-click any cell in the row that represents the task you want to delete, and then click Delete Task.

15. Dependencies (Linked Tasks)
When you make one task in your Gantt chart dependent upon another, an arrow connects the two task bars. If you change a date or duration of the task that another task is dependent upon, the dependent task dates change also.

16. Dependencies (Linked Tasks)
Goal
ACTION TO TAKE
Set dependencies between tasks.
click in the cells containing the task names. To select multiple tasks, hold down the SHIFT key while you select.
Right-click one of the selected tasks, and then click Link Tasks.
Break dependencies between tasks.
Select the tasks with dependencies that you want to break by clicking in the cells containing the task names. To select multiple tasks, hold down the SHIFT key while you select.
Right-click one of the selected tasks, and then click Unlink Tasks.
Change the style of dependency arrows.
With the Gantt chart open, right-click the drawing page, and then click S Type Connectors.

17. Data Columns
If you want to record and display additional task data in a Gantt chart, you can add new columns. For example, you may want to add a column for resources to list the people responsible for completing each task, or a column for percent complete to track what percentage of each task has been completed.
By default, when you create a new Gantt chart, the chart contains Task Name, Start, Finish, and Duration columns. You can rearrange the existing columns, add new ones, and delete columns you no longer need.

18. Data Columns Rename an existing column.
GOAL
ACTION TO TAKE
Rename an existing column. ?
Add a new predesigned data column.
Right-click the heading of the column to the left of where you want the new column to appear.
Click Insert Column.
In the Column Type list, click the column name that corresponds to the type of data you want to add, and then click OK.
Add a new data column that you design yourself.
In the Column Type list, click one of the user-defined columns that corresponds to the format the data will be in (for example , User Defined Decimal, User Defined Text, or User Defined Time), and then click OK.
Type a new name for the column.
Click the heading of the column that you want to rename, and then type a new name.
% Complete
Decimal
Actual Finish
Date ID
Integer
Task Name
Text

19. Data Columns Goal Action TO Take Delete (hide) a data column.
Right-click the heading of the column that you want to delete (hide), and then click Hide Column.
 NOTE    When you delete, or hide, a column from the chart, the data from the column is preserved in a file. To show the column again later, right-click a column heading, and then click Insert Column. In the list, select the column you want to show again, and then click OK.
Move a data column. ?
MOVE A DATA COLUMN
Click the heading of the column that you want to move.
Drag the column to a new location.
If the timescale region is long, you may have to zoom out to move the column past the region's midpoint. To zoom out, on the Standard toolbar, in the Zoom box, type a low percentage (20–30%).

20. TIMESCALE
The timescale is a scale of major and minor time units that extends from the date your project begins to the date it ends. You can define the time units for the timescale, its start and end dates, and the days that you consider nonworking days.

21. TIMESCALE Change start and/or end date. Change time units.
Goal
Action To Take
Change start and/or end date.
In your Gantt chart, right-click anywhere in the timescale, and then click Date Options.
Under Timescale range, select a new start or end date , and then click OK.
Change time units.
Under Time units, select the Major units and Minor units you want, and then click OK.
Set nonworking days.
In your Gantt chart, right-click anywhere in the timescale, and then click Configure Working Time.
Select the options you want for Working days and Working time, and then click OK.
NOTE    If you don't see the Gantt Chart toolbar, on the Viewmenu, point to Toolbars, and then click Gantt Chart.

22. -1 Example Activity A B C D E F G Preceding activity -- B A D E
Duration(weeks) 3 5 2 1 6

23. Answer

24. Answer(cont…)
Change the name of tasks
Change duration

25. Answer(cont…)

26. Answer(cont…)
Add New Column
Add dependence task

27. Example -2
In the following example there are eight tasks, Some tasks can be done concurrently (Requirement Collection) while others cannot be done until their predecessor task is complete (Screen Design  cannot begin until  Requirement Collection
 is complete). Additionally, each task has three time estimates: the optimistic time estimate (O), the most likely or normal time estimate (M), and the pessimistic time estimate (P). The expected time (TE) is computed using the formula (O + 4M + P) ÷ 6.

28. Expected time
(O+4R+P)/6
Time estimate
<<in weeks>>
O R P
Preceding Activity
Task Name 5 9 1 __
Requirement Collection 6 7
Screen Design 3
Report Design 2
2,3
Database Design
5.67 4
User Document
Programming
Testing
5,7
installation

29. answer

30. Answer(cont…)

31. any Q