For the specification of  entity address data, XSD format following the old 
structure is somewhat cumbersome. because you end up with something like:

<user>
        <contact>
                <postal>
                        <name>
                                Entityname
                        </name>
                </postal>
        </contact>
</user>

<user>
        <contact>
                <postal>
                        <city>
                                Entitycity
                        </city>
                </postal>
        </contact>
</user>

<user>
        <contact>
                <postal>
                        <street>
                                Entitystreet
                        </street>
                </postal>
        </contact>
</user>

etc.....

One suggestion from a colleague is to change the format to the more efficient:

<user>
        <contact>
                <postal>
                        <name>
                                Entityname
                        </name>
                        <city>
                                Entitycity
                        </city>
                        <street>
                                Entitystreet
                        </street>
                </postal>
        </contact>
</user>