Which one of the following is not a general technique that a business analyst may use in the requirements verification task?

A business analyst (BA) is preparing for elicitation activities and needs to determine who should be consulted, who should participate, and what roles each should fill. Which elicitation technique should the BA use?

A one-location restaurant has been a huge success and the owner wants to expand into more markets. The owner wants to ensure that the quality of the food and pleasing atmosphere is maintained without introducing new variables. Working with the key members of the organization, the owner determines that training and standard processes must be defined. The owner engages a business analyst (BA) to create training materials and operating procedures based on the existing processes at the original restaurant. During this documentation, the BA identifies some opportunities for improvement. How must the BA proceed? 

A system owner calls the project team to inquire about a recent change in one of the requirements, and insists that the change was never requested. What should the project team do to investigate the issue?