If we use "any" or "anyAttribute" elements and set their attribute "processContents" to value "strict", those elements/attributes, which are represented by the "any/anyAttribute" pattern must: have definition and must be valid with respect to that definition 3.10.1 The Wildcard Schema Component .

Let's say we use "any" or "anyAttribute" elements and set their attribute "processContents" to value "lax". Then those elements/attributes, which are represented by the "any/anyAttribute" pattern are validated as follows: if there is a definition for them, they must be valid with respect to that definition. If there is no definition, never mind. 3.10.1 The Wildcard Schema Component

Let's say we use "any" or "anyAttribute" elements and set their attribute "processContents" to value "skip". Then there is only one requirement for those elements/attributes, which are represented by the "any/anyAttribute" pattern: to be well-formed. 3.10.1 The Wildcard Schema Component

In this example, we redefine the type "myString" from an arbitrary string to a string which cannot be more than 5 characters long. We will do this using redefine element.