The Lists Client Sync Protocol enables the transfer of organized collections of data, which are "items" between a server and a client. These items conform to a specific abstract data model (section 3.2.1). The data model is implemented by a schema defined in section 18.104.22.168. The items are accessed via the Lists Web Service Protocol, as described in [MS-LISTSWS].
A protocol client can use this protocol to provide a richer and more responsive experience to users by maintaining local copies of data from the protocol server.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. Sections 1.5 and 1.9 are also normative but cannot contain those terms. All other sections and examples in this specification are informative.