Summary  
This chapter explains three project management frameworks—Waterfall’s linear phase-by-phase approach, Agile’s iterative and adaptive cycles, and Lean’s focus on maximizing value and eliminating waste—detailing their workflows, principles, and trade-offs.  

General domain of usage  
Manufacturing

### Waterfall

Waterfall was originally designed for the **construction and manufacturing industries**, where project steps occur **sequentially**. For example, when building a house, you must first prepare the site, then lay the foundation, build the walls, and add the roof. Each step follows a strict order you can't **build a roof before raising the walls**.  

The construction and manufacturing industries minimize **mid-production changes** because they can be **difficult and costly**. Imagine resizing a house after the foundation and walls are built. This is why the Waterfall framework requires a **clear understanding of all project requirements upfront**, ensuring each step is mapped out and changes are avoided.

### Agile  

Unlike **Waterfall**, which resists change, **Agile** embraces it. **Agile** is a broad term for project management frameworks that follow an iterative, team-based approach.

**Agile frameworks** manage tasks and deliver products through continuous iterations. While **Waterfall** delivers the final product only after project completion, **Agile** aims to provide a working product at the end of each cycle. These short, rapid iterations allow teams to adapt quickly to changes and feedback, ensuring continuous improvement.

### Lean

The **Lean** framework helps teams maximize value while minimizing waste throughout the project management process. It is commonly used in manufacturing, construction, and healthcare industries. **Lean** is built on five core principles that guide project managers in developing and optimizing workflows:  

Which of the following is a key principle of the Lean framework?

What is the primary focus of Agile project management frameworks?

Gain the essential skills needed to manage projects from start to finish. Learn to define project requirements and deliverables during the initiation phase, create a project plan and accurately estimate time in the planning phase, lead meetings, write status reports, and control costs during execution, and seek client feedback while closing a project. By the end, you will be equipped to manage projects effectively and avoid common mistakes.

Explore the core concepts of project management, including key frameworks, the essential phases, and common mistakes to avoid, providing a solid foundation for successful project management.

Project Management Frameworks

Waterfall

Agile

Lean

Advantages and Disadvantages

1. Which of the following is a key principle of the Lean framework?

2. What is the primary focus of Agile project management frameworks?