XML standalone

It is a value element and stores the data corresponding to the value of the standalone string in the declaration. It is always a child of the XmlDecl element. Valid values for the standalone element are yes and no. The following is an example of this:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE s1 PUBLIC "http://www.ibm.com/example.dtd" "example.dtd">
<s1>.........</s1>

A value of no indicates that this XML document is not standalone and depends on an externally-defined DTD. A value of yes indicates that the XML document is self-contained. However, the current release of IBM® App Connect Enterprise does not resolve externally-defined DTDs, so the setting of standalone is irrelevant and is ignored.