title: Core Data syncable & com.apple.syncservices.Syncable
body: <p>Xcode sets <code>syncable="YES"</code> by default for entities &amp; properties, e.g.,</p>
  
  <pre><code>$ cat AppName/AppName.xcdatamodeld/AppName.xcdatamodel/contents
  ...
  &lt;entity name="Event" representedClassName="Event" syncable="YES"&gt;
      &lt;attribute name="timestamp" attributeType="Date" syncable="YES"/&gt;
  &lt;/entity&gt;
  ...
  </code></pre>
  
  <p>Should I set <code>syncable</code> to <code>NO</code>? (I know I can do so by deleting <code>syncable="YES"</code> from the <code>contents</code> file or by adding the key-value pair <code>{com.apple.syncservices.Syncable, NO}</code> under the User Info section of the Data Model inspector.)</p>