1.7 MAKE THE USERS FEEL IN CONTROL IT IS IMPORTANT THAT THE USERS FE...

7.1.7 Make the users feel in control

It is important that the users feel that they are in control of the situation; part of this

means that they should have a correct mental model of the system, as described

previously, but also that they should be able to incorporate their own judgments and

experience into the system. For instance, the breaking of certain rules, perhaps not

allowed by the system, may become necessary. If this is possible, the user will feel that he

is more able to do his work correctly and easily.

Other ways to achieve this is to allow customization of the alerts. Enable the user

to sort the alerts. One situation might call for the alerts to be sorted chronologically (this

is preferably set as the “default” way of sorting). In other situations the user might find it

appropriate to sort the alerts by their priority, or destination airport.

Also allow the user to customize what time scope he wishes to work with, i.e. let

him or her choose for example 12h view, 24h view etc. The timeline should effectively be

as dynamic as possible, easily manipulated by the user.