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I'm doing a function point count for a large website. Does the main website menu count as an External Input?

I'm doing a function point count as described in this article.

If so, since you only click on one menu item at a time, I assume the number of DETs == 1?

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Hi Willem, don't worry about the downvotes, the community already took care of that ;) Can you edit your question to tell us which FPA method you are using? I think menu items qualify as external input, they are elementary processes that control information outside the boundaries of the application (but I could be horribly wrong, last time I concerned myself with FPA was over a decade ago). You might be interested in the Function Point Counting Practices Manual (warning: PDF) –  Yannis Rizos Aug 27 '12 at 16:29
    
Thanks Yannis. I clarified the question a little. I don't know of different types of function point counts, but hopefully that article will clarify. –  willem Aug 28 '12 at 7:20
    
From the linked document, pg 65: "A data element type is a unique user recognizable, non-repeated field." My instinct, further supported by this suggests to me that a menu group would be one function point, and not each menu item. A set of radio buttons that all share and operate on the the same exclusivity would be one function point. And so on...but I have rather ancient experience doing this kind of analysis, so thats about all the further I can help with that. –  JustinC Nov 2 '12 at 7:07

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Yes a menu is an external input from the user that gives control information. I also agree that this is DETs == 1 since it gives you one low complexity data item: the destination of the navigation.

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