With Waterfall, a well-defined sequence of israel phone number list actions and processes is established in phases. Developers cannot move from one phase to the next until final approval of the work done is obtained. In practice, with Waterfall, it is difficult to return to previous phases in case of necessary corrections , which can cause problems.
The difference here with Scrum is monumental. The short duration of Sprints allows for constant review before moving forward , but at the same time, an agile and productive method for approving results and continuing the work.
Scrum vs XP (Extreme Programming) Methodology
Finally, we have a comparison between Scrum and XP (Extreme Programming). These two methodologies are really similar but, still, they have considerable differences that separate them enough.
We already know that in Scrum, teams work in blocks of time called Sprints. These periods last between 1 and 4 weeks. However, in the case of XP, developers organize work in periods of no more than 2 weeks.
One important difference is the rigor of planning. During Scrum Sprint Planning, the team commits to a stable framework , where the only things that change are the Sprints and Product Backlogs; the rest of the key aspects of the project remain the same until the end of the Sprint, where everything is studied and redirected. This does not happen in Extreme Programming. On the contrary, teams that use XP have the possibility of dramatically changing direction before the end of a work period , if they consider it fair and necessary, based mostly on the priorities of the product they are developing (for example, a software feature has gained higher priority).
