Approach Information Project
PMBOK v8 Definition
The development approach defines how the project will be managed and executed, referring to the method used to create and evolve the product, service, or result during the project life cycle. PMBOK v8 identifies three primary development approaches: predictive, adaptive, and hybrid. The selection of a development approach is influenced by factors such as uncertainty, complexity, stakeholder influence, and the ease of change, with the holistic view principle (pages 10, 36-40) guiding this decision.
Why It Matters for the Exam
The PMI exam frequently tests your ability to select the correct development approach based on project characteristics. Questions appear in scenario-based formats where you must match project conditions (high uncertainty, fixed requirements, regulatory constraints) to the appropriate approach. Understanding the relationship between development approaches and project life cycles is essential for 10-15% of exam questions.
Key Points to Remember (for the exam)
- Three Approaches: Predictive (waterfall), Adaptive (agile/iterative/incremental), Hybrid (combination of both)
- Predictive: Used when requirements are clear, uncertainty is low, and changes are difficult/expensive (pages 60-61)
- Adaptive: Used when requirements evolve, uncertainty is high, and stakeholders need frequent feedback (pages 60-63)
- Hybrid: Combines predictive and adaptive elements, often used when some parts of the project are well-defined while others are not (pages 59, 65-67)
- Incremental vs. Iterative: Incremental delivers completed pieces in stages; Iterative refines through repeated cycles (pages 60-63)
- Key Decision Factors: Uncertainty level, complexity, stakeholder influence, ease of change, and regulatory requirements (pages 63, 68)
- Inverted Triangle Concept: Represents the relationship between cost of change and development approach flexibility (pages 60-61)
- Common Confusion: Confusing "development approach" with "development phase" – they are separate concepts (page 60)
Typical PMI Exam Example
A project manager is initiating a healthcare compliance project with strict regulatory requirements that must be met before any delivery. The team has extensive experience with similar projects. Which development approach should be selected?
Answer: Predictive approach, because regulatory requirements are fixed, uncertainty is low, and the team has prior experience with similar work.
PMI Exam Traps
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Trap: Assuming adaptive approaches are always better Reality: Predictive approaches are superior when requirements are fixed, regulatory constraints exist, or the cost of change is prohibitive
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Trap: Confusing iterative with incremental Reality: Iterative refines a product through repeated cycles; Incremental delivers completed functionality in parts
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Trap: Thinking hybrid means 50/50 predictive and adaptive Reality: Hybrid can be any combination, often using predictive for planning and adaptive for execution
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Trap: Selecting adaptive approach for low-uncertainty projects Reality: Adaptive is optimized for high uncertainty and evolving requirements, not for stable, predictable environments
Important PMI Connections
| Related Concept | Relationship Type | Exam Attention Point |
|---|---|---|
| Project Life Cycle | Defines the phases; development approach determines how phases are executed | Development approach is selected within the life cycle framework |
| Stakeholder Influence | Higher in adaptive approaches; lower in predictive | Stakeholders have more influence in adaptive projects |
| Uncertainty Management | Adaptive approaches manage uncertainty through feedback loops | Predictive approaches reduce uncertainty through detailed planning |
| Value Delivery System | Development approach impacts how value is delivered (incremental vs. final) | Adaptive delivers value continuously; predictive delivers value at project end |
| Quality Management | Embedded differently based on approach | Adaptive: continuous quality; Predictive: phase-gate quality reviews |
Quick Review Questions
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A construction project with fixed specifications and regulatory approvals must be completed within 18 months. Which development approach is most appropriate?
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A software startup is developing a new product with undefined user requirements and rapidly changing market conditions. Which approach should be selected?
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What is the primary difference between incremental and iterative development approaches?
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When would a hybrid development approach be most beneficial for a project?
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How does the ease of change influence the selection of a development approach?
PMBOK v8 Reference
Section 4.2 - Project Development Approaches (pages 59-68) Principles: Adopt a Holistic View (pages 36-40), Focus on Value (pages 40-42) Performance Domains: Planning, Delivery, Measurement