Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Source:- forbes.com The traditional model for software development is the waterfall approach, where development “flows” downward like a waterfall through six phases: analysis, design, implementation, validation testing, integration and maintenance. Purists of this model maintain that a new phase should not be undertaken until the preceding phase has been completed, reviewed and verified. This