Sensorial materials require reliable sensors in high numbers and number density. They require materials which show the fundamental sensor effects and manufacturing techniques for producing these as well as for integrating them in the structure or component to be monitored. An integration of this kind already means an advance over the state of the art, but the vision of ISIS extends beyond it: We envisage sensorial materials which will eliminate the distinction between structural material and functional or sensor component, which can be considered largely homogeneous from the design engineer point of view, but still incorporate the capability to gather and evaluated data about themselves as well as their surroundings. Depending on what is actually measured, applicability of such materials exceeds the field of structural health monitoring: Sensorial materials could survey production processes when integrated in either tool, machine tool or workpiece, monitor chemical degradation processes in batteries, or provide underwater robots with a fluid mechanics-based sense of events in their environment.