Changing Constraints

Remember, tasks always have a constraint applied—even if it's just As Soon As Possible or As Late As Possible. So we never think of adding or removing constraints. When making a change, we're typically changing a constraint from a flexible one to a more inflexible one or vice versa.

There are several methods for changing constraints, as follows:

• In the Gantt Chart or similar view with a task sheet, type or select dates in the Start or Finish fields. In a project scheduled from the start date, this causes a Start No Earlier Than or Finish No Earlier Than constraint to be applied. In a project scheduled from the finish date, this causes a Start No Later Than or Finish No Later Than constraint to be applied.

• In any task view, select the task whose constraint you want to change and then click Task Information on the Standard toolbar. In the Task Information dialog box, click the Advanced tab (see Figure 5-14). In the Constraint Type box, click the constraint type you want to apply to this task. If applicable, enter the date in the Constraint Date box.

General j Predecessors j Resources Advanced j Notes | Custom Fields j Name: | Install chair rails, crown moldings, trim Duration: J 2d -7J I-Estimated Constrain task

Constraint ty^e: | As Soon As Possible J Constraint date: |NA ▼]

Task type: | Fixed Units j P Effort driven Calendar: |None ^J Scheduling ignores resource calendars WBS code: 11.8.4.4 Earned value method: | % Complete jj Mark task as milestone

Help | OK | Cancel

a

Figure 5-14. On the Advanced tab of the Task Information dialog box, you can set constraints, deadlines, milestones, and task calendars.

On the Project Guide toolbar, click the Tasks button. In the Project Guide pane, click the Set Deadlines And Constrain Tasks link. Read the information under Constrain A Task and use the controls that are provided to set constraints. In the Gantt Chart or other view with a task sheet, apply the Constraint Dates table. Click View, Table, More Tables. In the More Tables dialog box, click Constraint Dates and then click the Apply button (see Figure 5-15). In the Constraint Type field, click the constraint type you want to apply to this task. If applicable, enter the date in the Constraint Date box.

Task Name

Duration

Constraint Type

Constraint Date

80

El Cabinets

9 days

As Soon As Possible

HA

81

Install 1 st floor - kitchen cabinets

2 days

Start No Earlier Than

Tue 8/31Î04

82

Install 1 st floor - master bath and guest cabinets

1 day

As Soon As Possible

MA

83

Install 2nd floor - hall bath and private bath cabinets

1 day

As Soon As Possible

NA

84

Install chair rails, crown moldings, trim

2 days

Must Finish On

Fri 9/10Î04

85

□ Finish Plumbing

6 days

As Soon As Possible

HA

86

Complete 1 st floor - kitchen plumbing

1 day

As Soon As Possible

NA

87

Complete 1 st floor - master bath and guest plumbing

2 days

As Soon As Possible

NA

88

Complete 2nd floor - hall bath and private bath plumbing

2 days

As Soon As Possible

NA

J 89

Conduct finish plumbing inspection

1 day

Finish No Later Than

Fri 9/24104

Ü 90

□ Finish Electrical

5 days

As Soon As Possible

HA

91

Complete 1 st floor circuits to service panel

1 day

As Soon As Possible

NA

Figure 5-15. Apply the Constraint Dates table to review or change constraint types and dates.

Tip Change constraints for multiple tasks at once

Select all the tasks that will have the same constraint applied. Drag across adjacent tasks to select them or hold down Ctrl while clicking nonadjacent tasks. Click Task Information on the Standard toolbar and then click the Advanced tab in the Multiple Task Information dialog box. Change the Constraint Type, and if applicable, the Constraint Date. Click OK. The constraint is changed for all selected tasks.

This method works best if you're changing date constraints to As Soon As Possible or As Late As Possible, because it's rare for multiple tasks to have the same constraint date.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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