DAVION

SYSTEMS

Matrix Designer  (Manual Mode)

 

While you can simply accept the default risk matrix that Mandrel provides, Mandrel also provides a capability for you to design your own matrix.

 

The Matrix Designer (menu call Setup Menu/Risk Matrix) has two operating modes, automatic and manual. Automatic mode is easier to use but restricts you to a limited set of matrix configurations. Manual mode requires more experience to use but is completely unrestricted.

 

To switch the Matrix designer to manual mode, click on the Manual mode box at the top of the form. The Matrix Designer is shown here in manual mode in a typical 5x5, 3-zone layout. The Show risk rank box has been checked to show the risk rank values and associated controls.

Zone Assignments

In manual mode you may alter the zone assignment (color) of each matrix element by clicking on it. Each element will cycle through the various zone colors you have selected with successive clicks.

 

Risk Rank Values

If the Show risk rank box is checked you may alter the numerical rank values via the up/down arrows associated with each element. N.B. these arrow controls will only be available if the Show risk rank box is checked.

 

Illegal Matrix Configurations

Mandrel will not accept an illegal matrix configuration. Legal configurations are defined in terms of zone order, rank order and rank consistency, as follows:

 

Zone Order

Moving to a higher impact or a higher probability level on the risk matrix should never result in moving to a lower zone. For example, moving across the risk matrix from left to right, the following sequence of zones would be acceptable:

   Green, Green, Yellow, Yellow, Red

However, this sequence is unacceptable:

   Green, Green, Yellow, Red, Yellow

 

Rank Order

Moving to a higher impact or a higher probability level on the risk matrix should never result in moving to a lower risk rank, i.e. to a higher numerical rank value. For example, moving up the risk matrix from bottom to top, the following sequence of rank values would be acceptable:

   17, 16, 13, 11, 8

However, this sequence is unacceptable:

   17, 16, 11, 13, 8

 

Rank Consistency

The rank of any element in a higher zone should be greater (i.e. numerically lower) than the rank of any element in a lower zone. For example, if there are red, yellow and green zones with red representing the most severe risks, all red zone elements must have higher ranks than any yellow zone elements, which in turn must have higher ranks than any green zone elements.

 

Default Matrix

The default matrix built into Mandrel is a 3-zone matrix with zone boundaries and rank values defined by the risk severity algorithm with N = 2. If you modify the matrix, you can always return to the default configuration by clicking on the Default button.