According to the PMBOKĀ® Guide, the Develop Project Management Plan process utilizes a specific set of Tools and Techniques to integrate all subsidiary plans and baselines into a comprehensive document.
Expert Judgment: This is the most critical tool for this process. It involves consulting with individuals or groups with specialized knowledge or training in project strategy, tailoring the project management process to meet the project needs, and determining the technical and management details to be included in the plan.
Data Gathering: This involves techniques such as brainstorming, checklists, focus groups, and interviews. These tools are used to collect information from stakeholders and team members regarding how the project should be managed, executed, and controlled.
Integrated Approach: While meetings and interpersonal skills (like facilitation) are also used in this process, the standard PMI documentation emphasizes Expert Judgment and Data Gathering as the foundational methodologies for synthesizing diverse requirements into a single, cohesive management plan.
Why other options are incorrect:
Option A: Meetings and data analysis: While meetings are used, " data analysis " is more commonly associated with the Monitor and Control processes (like analyzing performance data) rather than the initial creation of the management plan itself.
Option C: Interpersonal skills and change control: Interpersonal and team skills (facilitation, conflict management) are indeed used, but Change Control is a separate process (Perform Integrated Change Control) that occurs after the project management plan has been baselined.
Option D: Data analysis and expert judgment: Again, " data analysis " (such as alternatives analysis) can be used, but per the official PMI process mapping for Develop Project Management Plan, Data Gathering is a more primary and frequently cited tool for this specific stage than data analysis.