project-1.0.xsd

<?xml version="1.0" encoding="UTF-8" ?>

<xsd:schema xmlns="http://www.example.com/schema/projectwithxsd"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://www.example.com/schema/projectwithxsd"
    elementFormDefault="qualified">

  <xsd:element name="bar" type="bar" />

  <xsd:complexType name="bar">
    <xsd:attribute name="foo" type="xsd:string" />
  </xsd:complexType>
</xsd:schema>