What are original sources from which necessary decision logic is derived called?

The term used for original sources from which necessary decision logic is derived is "Knowledge Sources." These resources are essential in the context of business analysis because they provide foundational information and insights that inform decision-making processes. Knowledge sources can encompass a variety of materials, such as subject matter expert insights, best practices, regulations, or frameworks that guide the decision logic necessary for developing requirements and solutions.

In contrast, other options represent different concepts. Reference materials typically refer to supplementary texts or resources used to support further understanding or validation of knowledge but are not necessarily original sources. Input documents are often associated with the materials brought into a process to gather or clarify requirements but do not inherently contain the decision logic themselves. Data repositories imply a storage location for data rather than the sources providing the fundamental decision-making logic. Thus, knowledge sources are uniquely suited to derive decision logic necessary for effective business analysis.