Correct Answer: A, C, DJob shadowing is indeed an elicitation technique related to job observation. The method involves closely observing the work to understand it better, which aligns with the statement that the observer needs to understand the work processes for better assessment of the required modifications. Additionally, job shadowing is part of business analysis activities, particularly for planning and monitoring. Hence, the statements A, C, and D are accurate. Conversely, the claim about observing workers whose routines are down and who are unable to explain their work is not a common practice in the job shadowing process.