Safety Cube presents the principal elements for design and safety integrally. The cube generates several views as follows.
- System, environment, or subsystems view which present subsystems, (user)interfaces and competing or cooperating systems. This view presents the interfaces among these components and their environment, failures in components or interfaces, and the chain of physical reactions.
- The operational view is presenting the system use. The Interaction of the system with people (or other systems) is an essential aspect of the method described here in terms of operation or use. This interaction is often present at all various levels of the system, super-systems, and subsystems. Next, to use, a critical view on foreseeable misuse is essential. For example, scenarios for transportation, installation, operation, and recovery process might happen differently, and not exactly according to the user expectations.
- Identification of a proper set of requirements and functions are among the critical performances for systems as well as safety engineers. States of the system and fault recognition modes are examples of this. Furthermore, expectations, recommendations, or requirements for future design gives a valuable set for future innovations. These are presented through the functional view.
- The time view presents changes across the time axis. While the system under consideration for the present time is the primary focus, it is inevitable to explore the history of the system development (lessons learned) and consider future results. While usually, the information about the past (ex-generation) should be available, the implicit or explicit information about the future trend is needed.