Apologies for the delay in publishing the next part of the testing series, it's been a busy few months It's finally here though and the next parts should be coming soon...
Whereas Functional Testing test plans are generated from the Requirements documents, Structural Testing Test Plans are generated from the application itself.
Whilst there will always be a significant amount of overlap between the two test plans(Functional and Structural), both should still be created as there are differences in the types of errors captured by each.