show relationship between Mashup and Thing services

Hi! I'm wondering if there're some ways to show relationship between Mashup and Thing services? Typically, a Mashup will bind some Thing Services and internal Expressions/Validations, the relationship is quite complicated and working in different level. So I'm wondering if there're some ways to show relationship, or extract data from .xml source code and show it in diagram? It will be very very helpful to design review and documentation. Thank you very much!