Active Directory Lightweight Directory Services AD LDS

a Question - how can I used it in a real case scenario? If I know how to use it, I know what is it. I know that is a role that provides developer the ability to store data for directory enabled application without incurring the AD schema to support their application.
But honestly....I doesn't mean anything for me ;/ maybe cause is my limited English?. Any way can someone explain me please?:) and give some example
thank you.
But honestly....I doesn't mean anything for me ;/ maybe cause is my limited English?. Any way can someone explain me please?:) and give some example

Per aspera ad astra-Seneka