stuart at lexacorp.com.pg
Sun Mar 4 20:34:08 CST 2018
Ah yes, the seminal work on the Gane and Sarson notation for Data Flow Diagrams.
A very widely used Systems Analysis tool in all sorts of fields, not just POS system.
I still use G&S notation DFDs as a primary design tool :-)
On 4 Mar 2018 at 18:27, Jim Lawrence wrote:
> For years I specialized in doing development work for point-of-sale
> (POS) systems and their associated accounting.
> Early on I discovered a book that allowed me to design these systems.
> It is not a large book (240 pages) but it covered all aspects and
> logic behind every business that sells to customers. If anyone wants
> to learn the finer points of how to construct a POS, check out the
> following book. It was very expensive when I bought first, some
> thirty-five years ago but the principles haven't changed (Other than
> real-time account transaction posting has replaced
> batch-processing...computers were slow then) The price is right:
> Structured Systems Analysis: Tools and Techniques
> s/dp/0930196007 http://amzn.to/2FRUXw6
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