SyncML

SyncML(Synchronization Markup Language)은 플랫폼 독립적인 데이터 동기화 표준이다. 즉, 마이크로소프트 윈도우를 사용하는 PC, 리눅스를 사용하는 PC, 팜(Palm) PDA, 휴대전화, 아이팟, 아이폰 등의 어떤 기기와도 자유롭게 데이터를 동기화할 수 있다. SyncML은 XML을 기반으로 한다.

내부 동작 
리프레시(refresh) 동기화 시작을 위해 Alert 명령을 포함한 메시지의 예:
<?xml version="1.0"?>
<!DOCTYPE SyncML PUBLIC "-//SYNCML//DTD SyncML 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/OMA-TS-SyncML_RepPro_DTD-V1_2.dtd">
<SyncML xmlns="SYNCML:SYNCML1.2">
 <SyncHdr>
  <VerDTD>1.1</VerDTD>
  <VerProto>SyncML/1.1</VerProto>
  <SessionID>1</SessionID>
  <MsgID>1</MsgID>
  <Target><LocURI>PC Suite</LocURI></Target>
  <Source><LocURI>IMEI:3405623856456</LocURI></Source>
  <Meta><MaxMsgSize xmlns="syncml:metinf">8000</MaxMsgSize></Meta>
 </SyncHdr>

 <SyncBody>
  <Alert>
   <CmdID>1</CmdID>
   <Data>203</Data>   <!-- 203 = mobile signals a refresh from it to computer -->
   <Item>
    <Target><LocURI>Events</LocURI></Target>
    <Source><LocURI>/telecom/cal.vcs</LocURI></Source>
    <Meta><Anchor xmlns="syncml:metinf"><Last>42</Last><Next>42</Next></Anchor></Meta>
   </Item>
  </Alert>

  <Final/>
 </SyncBody>
</SyncML>

컴퓨터로부터 온 응답:

<?xml version="1.0"?>
<!DOCTYPE SyncML PUBLIC "-//SYNCML//DTD SyncML 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/OMA-TS-SyncML_RepPro_DTD-V1_2.dtd">
<SyncML>
 <SyncHdr>
  <VerDTD>1.1</VerDTD>
  <VerProto>SyncML/1.1</VerProto>
  <SessionID>1</SessionID>
  <MsgID>1</MsgID>
  <Target><LocURI>IMEI:3405623856456</LocURI></Target>
  <Source><LocURI>PC Suite</LocURI></Source>
 </SyncHdr>

 <SyncBody>

  <!-- accept the header of the last message from the client -->
  <Status>
   <CmdID>1</CmdID>
   <MsgRef>1</MsgRef>
   <CmdRef>0</CmdRef>	<!-- 0 = header of the message -->
   <Cmd>SyncHdr</Cmd>
   <TargetRef>PC Suite</TargetRef>
   <SourceRef>IMEI:3405623856456</SourceRef>
   <Data>200</Data>	<!-- 200 = ok, accepted -->
  </Status>

  <!-- accept the request of the mobile for a sync -->
  <Status>
   <CmdID>2</CmdID>	<!-- this is command #2 -->
   <MsgRef>1</MsgRef>
   <CmdRef>1</CmdRef>	<!-- it respond to command msg=1,cmd=1 -->
   <Cmd>Alert</Cmd>
   <TargetRef>Events</TargetRef>
   <SourceRef>/telecom/cal.vcs</SourceRef>
   <Meta><Anchor xmlns="syncml:metinf"><Next>0</Next><Last>0</Last></Anchor></Meta>
   <Data>200</Data>	<!-- 200 = ok, accepted -->
  </Status>

  <Final/>
 </SyncBody>
</SyncML>

외부 링크 
 OMA Data Synchronization Working Group
 SyncML - Data Synchronization and Device Management

XML 기반 표준
오픈 포맷
데이터 동기화
컴퓨터 표준