Situation dependent

Situation dependent interaction

The recommended architecture proposes different stations to distinct operational tasks. The recommended architecture ... comprises four different interaction stations:

Three Control stations - for controlling the functional unit:

• Primary station - for managing the interaction in normal operational conditions
• Recovery station - for managing the interaction in exceptional operational conditions
• Rescue station - for managing the interaction in emergency operational conditions

Supervision station - for managing the interaction during the hazard identification, and for managing the interaction when performing the top-level tasks.

  The requirements for operating in routine are different from those for operating in exceptional or emergency conditions:

• If optimized for operation in normal conditions, the interaction design should enable fast and easy access to all controls relevant to the scenario. Unfortunately, this kind of interaction is error-prone and is risky when operating in exceptional conditions and in emergency.
• If optimized for operation in exceptional conditions and in emergency, the interface should restrict the access to risky controls, and guide the operators for a step-by-step, wizard-style procedures. Unfortunately, this kind of interaction slows down the operation in routine

  The interaction styles should be optimized according to the situation:

• The screens, forms and messages of the control stations (user interfaces) should be individually optimized for each of the three interaction modes: routine operation, risk recognition and recovery interaction.
• Screens designed for one interaction mode should not be used for the other interaction modes.

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