How do SPBasePermissions enumeration values map to the UI user permissions and levels?

Question

I'm mapping out and implementing some permissions settings for a site that mostly involve changes through the UI, but at times require some under-the-hood tinkering in SharePoint Designer. I'm a bit new to this and the documentation isn't always clear.

The list of SPBasePermssions Enumerations is here and the list of the possible permissions you can set from the UI is here Can someone help me map these to each other?

Answer 1

I am sure the article below will help you understand the relations between permissions, permission levels, User/Groups and Securable objects;

http://technet.microsoft.com/en-us/library/cc287752.aspx

Basically a permission level is a set of individual fine grained permissions that are logically grouped together keeping a certain role in mind.

Permissions themselves are fixed but permission levels can be created/modified and SharePoint creates some permission level for us to get started.

Securable Objects (look aticle above for a fixed set of securable objects that Sharepoint has) are essentially given a perticular permission level to a particular user/group. If concept of permission level was not there, you would have to give individual permissions to sharepoint users/groups for secuarble objects! what a nightmare that would be!