Which of these are possible inputs for a decision table?

A decision table is a structured way to represent and analyze complex decision-making scenarios, especially in business process management and rules. The inputs to a decision table can vary widely, depending on the specific needs and conditions of the decisions being analyzed.

Enumeration is indeed a valid input for a decision table. It provides a predefined set of discrete values or options that a decision can take. For example, if a decision entails determining customer eligibility based on categories such as "new," "returning," or "VIP," these categories can be represented as enumerated values in the decision table. Using enumerations allows for clear and concise representation of conditions that lead to different actions or outcomes, making it easier to manage complex logic.

While attributes, dates, and knowledge sources are often relevant to decision-making processes, they do not directly fit the structural role of inputs in a decision table like enumerations do. Attributes may be more general characteristics associated with a subject rather than discrete options for decision-making. Dates usually need to be manipulated or compared rather than listed as possible states. Knowledge sources, while valuable for informing decisions, serve more as contextual or background information rather than inputs used to determine outcomes directly in a decision table setting.