Marechiare wrote:
>> The foreground code grabs the current period value
>> maybe twice a second, inverts it to make speed, and
>> displays the result.
>
> There should be middle level (I'd say Business Level) code to deal
> with the persisted state. Its output should be meaningful values, like
> speed, distance etc.
>
> And there should be UI (User Interface) level code to display the BL
> level output.

I agree that what I called "foreground code" would actually be several
modules.  However, there is no point computing speed from period except when
it's needed, which is whenever you want to display a new speed value.


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