View source for Waterfall vs. Lean Project Management

==Abstract==
There are many different methodologies of project management, all of them are defined by different principles. A traditional, sequential methodology, is the Waterfall model. Within this model, the tasks of the project plan are sequenced and conducted in a linear way, one task must be completed before the next one begins - the process is smooth and continuous, like a waterfall. Therefore, this model is one of the simplest methods.<ref>[https://www.wrike.com/project-management-guide/methodologies/, Methodologies of Project Management] Accessed 2018-02-11</ref> However, the process-based methodologies are used to create the whole project plan more efficient and effective. Lean project management was created to eliminate confounding factors within the project, but it is more complex due to the consideration of many influences. This article provides an introduction to both methodologies, a comparison with pros and cons and a guidance how to select the right methodology for the practical usage.

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