What is the difference between targetNamespace and xmlns:target? [duplicate]

Answered quite well over here: targetNamespace and xmlns without prefix, what is the difference?

To restate:

• targetNamespace="" – As the current XML document is a schema this attribute defines the namespace that this schema is intended to target, or validate.

• xmlns="" – Defines the default namespace within the current document for all non-prefixed elements (i.e no yada: in <yada:elementName>)

• xmlns:target="" – here you are just defining your own namespace with the prefix target:, this is unrelated to the previous two special cases.