August 2005
Beginner
256 pages
8h 26m
English
Content preview from Digital IdentityBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Exchanging Identity Data
Our goal of creating consistent sources of identity data, combined with the realities of modern distributed organizations, means that there is not likely to be a centralized source of all identity data. Consequently identities will be exchanged between systems, and we should plan for that as part of our data architecture.
We've discussed XML standards for exchanging identity data in Chapter 6 and 11. SAML is a standard for exchanging assertions about identity, including access-control information and properties of the identity record. SPML is used to exchange identity data for purposes of provisioning identity systems. XrML is used to exchange information about rights for digital resources.
These standards and others like them should be the basis for your data exchange strategy. Don't discount the power of standard exchange formats for your data. Whenever you need to exchange identity data, look first at the external standards that are available and choose one of those. Using an external standard is always preferable to creating proprietary internal standards for several important reasons:
You can buy tools that support those standards.
You can hire consultants who understand them.
Thousands of people all over the world are thinking of interesting ways to use them.
Also remember that many XML-based standards are extensible through namespaces and can probably be adapted to suit your needs even when they don't match exactly.
But, suppose that you can't find an external ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.