Project Management Method Comparisons —- The two dominant methods that make up our field are broken into individual
- Waterfall Method:
- Sequential Process: Waterfall is a linear and sequential approach where each project phase must be completed before the next one begins. This includes requirements, design, implementation, verification, and maintenance.
- Well-defined scope: It works best for projects with a well-defined scope and stable requirements where changes are infrequent or unexpected.
- Documentation-Heavy: Emphasizes thorough documentation at each stage, making it easier to understand what was done in every phase later.
- Predictability: Offers a transparent, predictable timeline and a fixed budget.
- Risk and Change Management: Not as adaptable to changes. Once a stage is completed, it’s not easy to go back and make changes.
- Agile Method:
- Iterative Process: Agile adopts an iterative approach, where projects are divided into small increments with minimal planning and do not directly involve long-term planning.
- Flexible and Adaptive: Emphasizes flexibility and customer satisfaction through continuous delivery. Ideal for projects with rapidly changing or highly emergent requirements.
- Customer Collaboration: Involves customers in the development process, allowing them to influence the project direction throughout its life cycle.
- Regular Adaptation: Teams regularly reflect on how to become more effective and adjust accordingly.
- Risk Management: More adaptable to changes and can provide a way to incorporate feedback quickly.
Key Differences:
- Flexibility: Agile is more flexible and adapts to changes well, whereas Waterfall is more rigid.
- Project Size and Complexity: Agile is better suited for smaller, more complex projects requiring frequent adaptation, while Waterfall is suited for large, clearly defined tasks.
- Customer Involvement: Agile involves customers throughout the project, while Waterfall involves customers primarily at the beginning and end.
- Risk Management: Agile allows for frequent reassessment of risks, while Waterfall assesses risks primarily at the beginning.
- Timeline and Budget: Waterfall has a fixed timeline and budget, whereas Agile’s are more flexible and can evolve with the project.
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