Mashups in EMML : Writing Mashups in EMML : Declaring Namespaces
Declaring Namespaces
You must declare these namespaces in a mashup script:
*Namespaces used in component mashable information sources.
Note:  
When you declare namespaces for component mashables, you must use the same namespace prefix as the MashZone NextGen Server.
*Namespaces used in the construction of input parameters, output parameters or variables.
*The macro reference namespace for any custom statements (macros) that you use in your mashup. See Calling a Macro for more information.
*The EMML namespace and the MashZone NextGen EMML Extension namespace.
Note:  
See EMML Namespaces for the currently supported namespaces for EMML and macros.
You declare namespaces using the xmlns attribute on any element in a mashup script. Typically, it is easier to define all the namespaces used in the script on the <mashup> element. For macros, especially in a macro library, it is a good practice to define namespaces on <macro>.
This example shows <mashup> with the default namespaceDe set to EMML:
It has two additional namespace declarations, for Atom and XHTML, that are used in the <constructor> statement to build the body of a <directinvoke> that posts to a blogging service. Namespaces are simply valid URIs - they can be URLs or URNs.
Note:  
Previous releases used <namespace> elements to define namespace for component mashables. This technique is deprecated, although it is still supported.
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