The Developer Zone includes many full-fledged sample location applications that provide best practices on using DDS Web Services.
The sample applications are designed with developers in mind, and provide 'what-you-see-is-what-you-get' view of the XML API.
The DevZone also includes a development console with multiple code snippets and test queries that can be run interactively. Developers can immediately see the behavior of DDS Web Services as query parameters get changed, allowing developers to quickly test and review XML query and result code.