@Frankline, I really appreciate your input. In the original thread I
had asked if anyone uses a particular plan or methodology to derive
variables and I gave an example of a design stage that I'm looking at.
The design stage can only come around if enough research has gone into
the requirements stage. Trust me, it is not that simple and a steeep
learning curve, variables is one tiny portion of the program and
placing them correctly within the code is very important. Imagine you
were a software development consultant and given a blank page to
comeup with project requirements, flow and functionality. From what
you write into the project is a blueprint for the development phase of
the project. Its like a blueprint for a house, you cannot build a
house first then make its blueprint plans later. For a house, you can
derive many variables. Some like electrical sockets, plumbing outlets,
drainage, volume and storage of water just by knowing what each floor
is going to do. The blueprint for an office block will be different
from a residential one.


Anyway, I'm still researching and hopefully be able to comeup with an
answer that makes sense on paper first. :-)

Rgds.