The steps of a process take place in order according to the linear classical project management (waterfall) paradigm. Its idea relies on reliable resources and expertise. Every project adheres to the same life cycle including stages like feasibility, planning, designing, building, testing, manufacturing, and support.

The entire project is prepared in advance with no room for adjusting requirements. This strategy makes the assumption that while requirements are flexible, time and cost are not. Since there is no room for modifying the criteria once the project development process has begun, this strategy is not suitable for large projects.