For most developers, writing code is the easy part - it'sexplaining it to a customer that's the tough bit. In case you need tocreate a technical manual explaining how your software works, take alook at our handy two-part cheat sheet, which should help make theprocess a little less intimidating.
Any developer attempting this document should ensure that (s)he has:
A sound understanding of how the project is structured
Complete knowledge of the control flow within and between allcomponents
Complete knowledge of all the APIs in the application
Knowledge of the data structures and the storage containers used
Knowledge of the variables used in all the components
An understanding of how the installation files are packaged
An understanding of how the user interface has been developed
Knowledge of the variables that need to be configured to initializethe application
Sufficient knowledge of the software platform on which the applicationhas been developed.
While the requirements specification and design documents usuallycontain this information too, an understanding of the reasons why, say,a particular API has a certain boundary value, or a certain variable isa configuration variable and not a runtime variable, would be invaluableto someone explaining their utility.Assuming adequate knowledge on the part of the developer/writer, thenext step is to assess the scope of the material covered by the STRM.Let's look at that next.
Practices 
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