3.1.1 Abstract Data Model
This section describes a conceptual model of possible data organization that an implementation maintains to participate in this protocol. The described organization is provided to facilitate the explanation of how the protocol behaves. This document does not mandate that implementations adhere to this model as long as their external behavior is consistent with that described in this document.
The WebDAV Extensions for Contacts Support treat a list of contacts (3) as a folder and treat each contact (3) as an item within the folder. Each contact (3) has properties, as specified in section 2.2.1.