 to a single user, a group of users, or the special <em>public</em> user which means all users.</p>
<p>Each object in DataONE can have one or more access rules that control the access of that object. The complete set of access rules for an object is referred to as its <em>access policy</em>.</p>
<p>Access rules can be added to each <em>DataObject</em> individually after it has been created.</p>
<p>Alternatively, access rules can be specified for all package members when a package is uploaded using <code>upl