fmDBAnalyser
FileMaker Databases inside-out
fmDBAnalyser is a tool which can provide an instant analysis of the currently open FileMaker databases around it.
Being one of the first tools I made for FileMaker many of the functions are outstripped these days by other analysis tools, yet the relationship analysis function is still extremely useful when transferring tables between files.
See Importing a table perfectly and the case study Backporting an e-Invoice Solution for GBS GmbH to see how it can be used to verify the relationships of a TOG.