SCRUM REAL QUIZ: A scrum team needs to develop a web application in increments. Some of the sprints have sprint Goal like : Develop Data layer for Functionality A. What is your inference?
a) The Scrum team follows horizontal Decomposition off backlog items. This is Recommended.
b) The Scrum team follows Vertical decomposition of backlog items. This is recommended.
c) The Scrum team follows Horizontal decomposition of the Product backlog items. This is not recommended.
d) The Scrum team follows vertical decomposition of the product backlog items. This is not recommended.

Question

A scrum team needs to develop a web application in increments. Some of the sprints have sprint Goal like : Develop Data layer for Functionality A. What is your inference?
a) The Scrum team follows horizontal Decomposition off backlog items. This is Recommended. 
b) The Scrum team follows Vertical decomposition of backlog items. This is recommended.
c) The Scrum team follows Horizontal decomposition of the Product backlog items. This is not recommended. 
d) The Scrum team follows vertical decomposition of the product backlog items. This is not recommended.

Avinash Upadhyay · Accepted Answer

c) The Scrum team follows Horizontal decomposition of the Product backlog items. This is not recommended.

It is preferable to decompose Product backlog items such that each team can produce usable business Functionality instead of Producing Technical component. 
Such Decomposition based on usable Business functionality is called vertical decomposition. 
A Horizontal Decomposition, on the other hand makes the team a technical component team that will have external dependencies

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