Infotype Views

Hi,

Can anybody explain me in detail about Infotype Views?

As far as my understanding, the primary infotype and the additional infotypes are maintained using an infotype view. Infotype views are captured in tables T582V and T582W.

But in these tables I am not able to find the details about the additional infotype. What is additional Infotype meant by here? Where the details or info about the additional infotype will be saved?

Thanks in advance,

Suresh