Difference between components and labels?

[Xheneta Gërxhaliu]

Dear JIRA users,
As a new user of JIRA, I wish to know what the difference between component and label is? When to use which one?  
Thank you in advance.
Regards 

[Rodrigo Rosa]

Hello Xheneta,

By the definition of component:

• Components are sub-sections of a project. They are used to group issues within a project into smaller parts.

And label: 

• Labeling allows you to categorize an issue(s) in a more informal way than assigning it to a version or  component. You can then search for issues that have been given a particular label.

There are some differences on what can be achieved on each one of these, and are further explained here:

• https://confluence.atlassian.com/jira/defining-a-component-185729533.html
• https://confluence.atlassian.com/jira/labeling-an-issue-218276882.html

Regards,

Rodrigo

[Katy Šrámková]

Main differences for me: Labels can be defined by anyone, components are admin managed and can have default assignee.

See also related topic here: https://www.linkedin.com/pulse/stories-vs-epics-components-modelling-product-jira-piotr/