Which documentation method utilizes reserved words in its construct?

The correct answer is based on the concept of Structured English, which is a method that employs a specific set of reserved words or phrases to create clarity and consistency in describing business processes and logic. This structured format allows for the expression of conditions, actions, and loops in a way that is easily understandable, making it highly useful in business process modeling and decision-making scenarios.

Structured English typically uses reserved words such as "IF," "THEN," "ELSE," "FOR," and "WHILE," which help define the logic of the processes being described. This standardized approach ensures that all stakeholders can interpret the process in the same way, reducing ambiguity and potential miscommunication.

In contrast, other methods like simple text steps may lack the rigorous structure needed for clarity, and UML activity diagrams focus on visual representation rather than textual description with reserved words. Use Case descriptions provide a narrative format for capturing functional requirements but do not inherently use reserved words in their construction. Thus, Structured English stands out as the method that specifically utilizes reserved words to enhance the clarity and effectiveness of business process documentation.