Yet visual representation of avatars introduced a new dimension and, thus, new questions about identity flexibility, personal privacy, reputation and trust.
角色的视觉呈现引入了一个新维度，从而产生了关于身份灵活性、个人隐私、声誉和信任等新问题。
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The Service Consumer can either obtain them directly from an Identity Provider, or it can obtain the data in a different form and convert it to a SAML representation.
This paper describes an object storage and browsing system, which solves the key problems about the knowledge representation and browse by object identity.