VBA Best Practice
There is a lot of information floating around about how to get various things done in VBA, how to make the best use, or sometimes just the most use of VBA and Excel.
This section aims to add an element of Quality and Best Practices. These are just general guidelines, a professional developer will always assess the options and make the appropriate choice in their specific situation.
These suggestions are specific to Excel VBA in commercial settings, many will not translate to other technologies or other settings.
VBA Best Practice Series
Fan in / fan out
Fan in / fan out refers to the shape of the dependencies of a particular routine.
Low fan in - a VBA routine depends on only a few other units
Good because it minimises dependencies and reduces complexity
High fan out - a VBA routine is used by many others
Good because it minimises duplication
Good because routine is more thoroughly exercised
25 January 2012 - UK Excel Developer Conference - London
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