Answer:
a. complexity
b. tight coupling
d. catastrophic potential
Step-by-step explanation:
Charles Perrow explained that accidents involving technologies could be high-risk or normal. High-risk accidents have catastrophic potentials and can affect both the mangers of the technology, those not directly involved, and even have far-reaching effects. Normal accidents are those that cannot be avoided. He described these accidents as having interactive complexity and tight coupling.
Interactive complexity occurs when isolated failures occur simultaneously. Tight coupling implies that what happens in one part of the system has a high possibility of affecting another part of the system.