Hello Peter,

Since RPE 1.2, you can pass complex variables between scripts.  I use this method to construct a hashtable, stored in an RPE internal variable, containing the enumeration identifiers and literals, then read from the hashtable when I need to translate the identifier stored in a workitem attribute with the actual literal.

To create the hashtable, I use a scripted variable under these nested queries:
workitem/projectArea (with a native filter of name='<projectAreaName>')
  workitem/projectArea/enumerations (with a scripted filter of id == "valueprovided" )
    workitem/projectArea/enumerations/literals

My variable is then populated by this script:
java.util.Hashtable(myHashtable).put(id,name);
myHashtable

I then execute this query:
workitem/workItem/StringExtensions
and under that query populate another internal variable that I eventually use to output the enumeration literal.  This is the script I use to populate the second internal variable:

if (key=="<workItemAttributeIdentifier>")
{
output= java.util.Hashtable(myHashtable).get(value);
}
output

I would be interested in hearing if anyone has found a simpler way to do this. 

Note that if you are using a version of RPE prior to 1.2, you would need to serialize/deserialize the hashtable in order to pass it between scripts.  This is discussed here: https://www.ibm.com/developerworks/forums/thread.jspa?messageID=14873579