• Subject: Software life cycle - was IF ACTIVE
  • From: John Carr <74711.77@xxxxxxxxxxxxxx>
  • Date: Mon, 11 Jan 1999 19:49:48 -0500

RE:     Software life cycle - was IF ACTIVE

>>> Does anyone know of an equivalent CL command 
>>> to the S/36 OCL Statement:

> Have you considered rewriting your apps to take advantage of the native 
> environment? 
> This is exactly how a 1975 application (batch entry, load a work file, 
> sort, print, update) stays an integral part of a 1999 software package. 
> I apologise to all for the rant, but would appreciate comments on how 
> others perceive the software life cycle.  How many applications designed in 
> 1975 do *you* think should be running today?
> Buck Calabro

Couldn't agree more Buck.   I employ what I call "Pro-Active Maintenance".
As code is maintained on projects,  It is "Restructured"  to take advantage
of new techniques/capabilities.  Look at the "Changed Dates" on lines of 
code in programs.   They are often changed year in / year out.  Each time
you are there you could be making small/big changes and have your systems
evolve.  Over a course of a year or two,  Your whole application base is 
radically changed for the better.  You will never get a "Major rewrite" 
thru most managements,  But if you "Evolve" the code,  Most of the time, 
They will not even notice it being done.  

OTOH,  For the requested answer,  The AS/400(Sys/38) are Single Level Store
machines.  Objects have one address for their life.  The machine "Thinks"
all objects are "Active" meaning "In their IN-Memory location" all the time.
Hence,  No   IF-ACTIVE.   It doesn't have a meaning in a Single Level 
Store arch.

Just a thought.
John Carr
Have Classes, will travel
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