The project life cycle is a key factor that drives the selection of business analyst activities to be included in the project. The project life cycle is the sequence of phases or stages that the project goes through from initiation to closure. The project life cycle can be selected based on various factors, such as the nature, complexity, size, and uncertainty of the project, the stakeholder preferences, the organizational culture, and the industry standards. The project life cycle can influence the approach that the business analyst and the project team use to plan, execute, monitor, and control the project, and to deliver the product or service. The project life cycle can also affect the type, level, and timing of the business analysis activities, such as elicitation, analysis, documentation, validation, and management of the requirements. References: PMI Professional in Business Analysis (PMI-PBA)® Examination Content Outline1, page 15; Business Analysis for Practitioners: A Practice Guide2, page 84.