What if analysis

• Select the “What If Analysis” link in the “Select Work Units” page of the “Allocate Work Units” activity.

The “What If Analysis” page appears.

The system displays the following field:

• Enter the following fields in the “Search Criteria” group box:

• Click the “Search” pushbutton, to search for the work center or aircraft, based on which the “What If Analysis” must be performed.

To view the “Gantt Chart” depicting the “What If Analysis” performed for the aircraft or work center

The system displays the following in the “Work Unit Details” group box:

Note: If the work center is entered in the “Search Criteria” group box, the system displays the “What If Analysis“ chart for all the aircrafts associated with the work center.

Note: If the aircraft registration number is entered in the “Search Criteria” group box, the system identifies the work center to which the aircraft reg. # is associated with and displays the “What If Analysis“ chart for all the aircrafts associated with the work center.

For each aircraft under the maintenance base, using the “Gantt Chart”, you can view the graphical representation of all the planned work units applicable for the aircraft as a time bar, based on the planned start date and time (in hours), and planned end date and time (in hrs) over the period specified. The system displays each work unit in the form of a time bar indicating the planned start date/time, and planned end date/time of the work units. The system will display all the pending work units due for execution for an aircraft in a single row, along with the planned discrepancy work units.

 If a visit package is created for the aircraft, the system represents the same in a “grey” colored band, with the visit package date and time as the planned start and end date and time. All the work units of the visit package will be displayed as overlapping time bars. All planned activities are displayed in “green” color bar strips and unplanned activities in “yellow” color bar strips.

Note: For a work center, if more than one work unit has the same schedule start/end date and time, then the work units will be displayed as “overlapping” time bars.

Note: The system retrieves the values in the “Utilization Values” multiline, only if an Aircraft Reg. # or a Work Center # with an Aircraft Reg. # is entered.

The system retrieves the following:

1. The earliest start date of all the working units in the “Gant Chart” to the “From Date” field and the latest of all the dates to the “To Date” field for each row of the parameter information.

2. The utilization values will be retrieved or saved based on the “Time Display Format” selected for the parameter in the “Aircraft” business component.

• Click the hyperlinked “Aircraft Reg#” number, if you wish to modify the utilization values and perform a “What If Analysis”.

•  Modify the following in the “Utilization Values” multiline, if required:

Note: By default, the system will retrieve the parameter values, from and to date and the utilization value from the respective aircraft maintenance program or component maintenance program.

Note: If the search criteria is based on “Work Center #”, the system will retrieve the “Utilization Values” only if the work center is associated with an aircraft.

The system displays the following “Utilization Values” multiline:

• Modify the following in the “Utilization Values” multiline:

The system displays the following “Utilization Values” multiline:

• Enter the following in the “Utilization Values” multiline:

Note: Ensure at least one record is entered in the multiline.

• Click the “Analyze Impact” pushbutton, to perform the analysis.

On clicking the “Analyze Impact” pushbutton, the system  performs the following:

• Performs the  “What If Analysis” for the aircraft based on the utilization details entered against each parameter.

• Re-forecasts the planned start date and end date for all the work units and reflects the same in the Gantt Chart as a time bar.

• Accepts the values in the “Utilization Value” field based on the Time Display Format selected against the parameter in the “Aircraft” business component. For example, if 1.90 is entered and the  “Time Display Format” is selected as “HHMM”, then the system automatically converts the value to 2.50 and stores in the database, but displays the value as 2.30.

Note: The system will not a display error message, if the entered value is not in compliance with the Time Display Format.

What If Analysis  – An overview

“What If Analysis” enables the planner to visualize and envisage the different scenarios with respect to distribution of planned work units on a time frame. With this information, planner can simulate forecast and make decisions in managing materials and resources executing various maintenance activities in a maintenance base, by varying the parameter utilization values. The planner performs this analysis to maintain the details regarding the availability of material and resources in case of future emergencies, or to allocate the required part and resources to some other maintenance base (if there exists a demand).

“What If Analysis” facilitates the central planner to do the following:

• View the forecasted work units scheduled for execution using the Gantt Chart

• View the changes in the schedule dates of the work units to be performed through a Gantt Chart, by modifying the utilization value for different time frames.

• Use the What If Analysis as an aid to carry out material planning and resource planning, if utilization values of the parameters were to be altered.