Hello,

I'm writing a JSDL->classad-based JDL converter, and I have a question related to the interpretation of the jsdl:
DataStaging element.
According to the definition, the jsdl:DataStaging element may have two child elements (both of which are optional) jsdl:
Source and jsdl:Target. As I understand:

- if only the jsdl:Source child is given, the DataStaging element refers to a request to copy files TO the execution 
node;
- if only the jsdl:Target child is given, the DataStaging element refers to a request to copy files FROM the execution 
node, upon job termination;
- if both jsdl:Source AND jsdl:Target children are given, then the previous two cases are combined (first the file is 
staged in, and upon job termination is staged out).

Now, I do not fully understand the meaning of having a DataStaging element without jsdl:Source nor jsdl:Target. How 
should we interpret this situation?

Thanks in advance,

Moreno.