Sequential IT delivery models

In this section two sequential IT delivery models will be explained in more detail: Waterfall and the V model.

Sequential IT Delivery

 

 

 

 

 

 

 

 

Waterfall

V-model

The waterfall model is a sequential (non-iterative) software development process, in which progress is seen as flowing steadily downward (like a waterfall) through the phases of idea/wish/etc., requirements elicitation, analysis, design, coding, testing, deployment (production/implementation), and maintenance.

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The V model is a model where the execution of processes happens in a sequential manner in a V shape. In the V Model, testing phases are related to corresponding development phases [Koomen 2006]. This means that for every single phase in the development cycle, there is a directly associated testing phase.

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    Overview of IT delivery models

    High performance IT delivery models

           DevOps

           Scrum

           Lean - Agile - Kanban - Spotify

    Hybrid IT delivery models

           Demand/supply

           SAFe

    Sequential IT delivery models

           Waterfall

           V-model