Final answer:
Unstructured decisions bring uncertainty into the decision-making process because they lack clear procedures and predictable outcomes. Structured decisions help reduce this uncertainty by providing specific criteria and a framework for evaluation. Decision-making uncertainty also stems from social influences and collective decision biases.
Step-by-step explanation:
Introducing uncertainty into the individual decision-making process is commonly associated with unstructured decisions. An unstructured decision is a response to a situation that is new or undefined and lacks a clear procedure or predictable outcome. This contrasts with a structured decision where established procedures and criteria are applied to reach a conclusion, thereby reducing uncertainty.
For example, during a structured decision process in engineering design, specific criteria and constraints are considered to select the best concept for product implementation. Conversely, design problems are typically complex and open-ended, leading to a higher degree of uncertainty in decision-making if not approached with a structured process.
Uncertainty also arises because informational social influence is more likely when the answer is unclear or when a group possesses expertise. This can directly affect individual decisions and also plays a role in collective decision-making where biases—such as preference for the status quo or majority opinion—can introduce uncertainty.