In the Waterfall Model, all project requirements are established before the project starts, making it challenging to change parameters or definitions later on. Take building a treehouse as an example: you must complete the first step: constructing the tree structure before progressing to the second step. This methodology could be an ideal for product development in strictly regulated industries, such as insurance. --- [Scrum Methodology](Scrum%20Methodology.md) [CPM - Critical Path Method](CPM%20-%20Critical%20Path%20Method.md) [WBS - Work Breakdown Structure](WBS%20-%20Work%20Breakdown%20Structure.md)