Filemaker Pro is a wonderful database-system. I work for about 12 years with it and know it through and through. Here are a few of my tips.
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Recordtypes If you need to go relational (I think most people do), try to conceive as much as possible files into one file. Instead of having them all seperate, just define your fields in subtables. Your fieldnames then look like
You can then link on the different keyfields just as you like. Linking within the same file goes much faster and safer. And as you only have one file, wrong navigation between files is not possible anymore. Of course make sure that you switch of column-functions for endusers and that every navigation and searching goes by well defined scripts. Colouring layout's Did you know that having a background for your layout is easy? In layout-modus just click one time on the part-label and select colour and/or patern as you like it.