SCOUG-Programming Mailing List Archives

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Date:	Wed, 6 Aug 2003 23:35:09 PDT7
From:	"Lynn H. Maxson" <lmaxson@pacbell.net >
Reply-To:	scoug-programming@scoug.com
To:	< "scoug-programming@scoug.com" > scoug-programming@scoug.com >
Subject:	SCOUG-Programming: Re: Warpstock 2003 Presentation

Content Type: text/plain

Robert Blair writes:
"You can not write the complete system without having some
intermediate steps. What I say is write the code that gives
the best return. In this case the front end is where you gain
the productivity. You get almost nothing trying to change the
compiler. ..."

I understand you're speaking in relative terms here, but the
"almost nothing" you refer to here is fairly significant.

In truth you begin with a window. You add a menu bar. You
create the ability to create, change, insert, and delete text.
In short you start with an editor. From there you can work
with interfacing with the data repository/directory: the back
end. Or you can proceed through the various stages of syntax
analysis, semantic analysis, and proof theory: the front end.

However, the editor remains the only data entry interface.
Both the front and back ends allow for multiple "output only"
windows to indicate the state (or status) of any process at
any time.

Personally at the moment I'm leaning to writing back end,
editor (middle), and front end using VisualAge PL/I and DB2.
Meanwhile I'm still in the process of preparing material for the
device driver presentation at the next meeting, which is just a
little over a week away. Right now I'm going to bed.

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