What is Oracle BI Discoverer?

Discussion between 2 Developers about what is BI Discoverer?

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X Says: What is BI Discoverer?
Y Says: Discoverer is like excel.

X Says: How is it beneficial for Developers and Users?
Y Says: Developers create business areas and in those business areas; views. Administrator gives access to users. Users can do different things on these views like sorting, where conditions are required.

X Says: What access can be given to users?
Y Says: It depends how much access you want to give to users. According to their access they can generate reports as they want.

X Says: Business areas are created either by developers or by user ?
Y Says: By Administrator; Using Discoverer Administrator.

X Says: What is the concept of repository?
Y Says: Repository containing information about data. You can say data about data.

X Says: Should we create it our self in discoverer or it is automatically created?
Y Says: It is automatically created. Discoverer will install all required things. Oracle Business Intelligence Discoverer Components can be understood through the below image.

X Says: Thanks a lot.
Y Says: Its my pleasure.
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I hope it will be helpful.

Regards