Formal communication is the type of communication that is most likely required to be used in regard to requirements in a plan-driven approach to business analysis processes. Formal communication is a type of communication that follows predefined standards, formats, and protocols, and is documented and approved by the authorized parties. Formal communication is suitable for a plan-driven approach, which is a business analysis approach that focuses on minimizing changes and delivering the planned outputs in a predictable manner. A plan-driven approach requires formal communication to ensure the clarity, consistency, and alignment of the requirements with the stakeholder needs and expectations, and to prevent or resolve any conflicts or issues that may arise from the requirements or the solution12
Option A is incorrect because informal communication is not the type of communication that is most likely required to be used in regard to requirements in a plan-driven approach to business analysis processes, but a type of communication that does not follow predefined standards, formats, and protocols, and is not documented or approved by the authorized parties. Informal communication is more suitable for an adaptive or change-driven approach, which is a business analysis approach that focuses on maximizing value and delivering the most important outputs in a flexible manner. An adaptive or change-driven approach requires informal communication to facilitate collaboration, feedback, and learning among the stakeholders, and to respond to changes quickly and effectively34
Option B is incorrect because ad hoc communication is not the type of communication that is most likely required to be used in regard to requirements in a plan-driven approach to business analysis processes, but a type of communication that is spontaneous, unplanned, and unscheduled, and is used to address specific or urgent situations or needs. Ad hoc communication is not related to the business analysis approach, but to the communication needs and preferences of the stakeholders. Ad hoc communication can be used in any business analysis approach, as long as it is appropriate and feasible for the purpose and context of the communication5
Option C is incorrect because face-to-face communication is not the type of communication that is most likely required to be used in regard to requirements in a plan-driven approach to business analysis processes, but a type of communication and elicitation technique that involves direct and personal interaction and collaboration among the stakeholders in a physical or virtual setting. Face-to-face communication is not related to the business analysis approach, but to the availability, accessibility, and convenience of the stakeholders. Face-to-face communication can be used in any business analysis approach, as long as it is effective and efficient for the communication and elicitation of the requirements.
References:
Business Analysis Body of Knowledge (BABOK® Guide), Version 3, Chapter 2: Business Analysis Planning and Monitoring, Section 2.1: Plan Business Analysis Approach, p. 31-32.
Certification of Capability in Business Analysis (CCBA®) - Simplilearn, Module 5: Planning and Monitoring, Lesson 5.1: Plan Business Analysis Approach, p. 6-7.
Business Analysis Body of Knowledge (BABOK® Guide), Version 3, Chapter 2: Business Analysis Planning and Monitoring, Section 2.1: Plan Business Analysis Approach, p. 32-33.
Certification of Capability in Business Analysis (CCBA®) - Simplilearn, Module 5: Planning and Monitoring, Lesson 5.1: Plan Business Analysis Approach, p. 8-9.
Business Analysis Body of Knowledge (BABOK® Guide), Version 3, Chapter 2: Business Analysis Planning and Monitoring, Section 2.3: Plan Business Analysis Communication, p. 36-37.
[Business Analysis Body of Knowledge (BABOK® Guide)], Version 3, Chapter 10: Techniques, Section 10.16: Interviews, p. 351-352.
[Certification of Capability in Business Analysis (CCBA®) - Simplilearn], Module 6: Elicitation and Collaboration, Lesson 6.4: Confirm Elicitation Results, p. 6-7.
