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From: =?UTF-8?B?QmrDtnJuIEx1bmRpbg==?= <b.f.lundin@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Ada package registry?
Date: Fri, 05 Feb 2016 23:06:44 +0100
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Date: 2016-02-05T23:06:44+01:00
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On 2016-02-05 09:51, Dmitry A. Kazakov wrote:
> On 04/02/2016 23:04, Björn Lundin wrote:
> 
>> I'd like to hear of an ERP system (or WMS) that does NOT
>> use a DBMS, and has customers with 1_000+ employees.
> 
> Well, maybe 80% of ERP code and performance is spent on adapters between
> its components, most of which useless. 

While I don't agree on that percentage I do agree with that it is too much.

>There is a great deal of legacy,
> legality and custom in ERP systems. You are right that all of them
> deploy DBMS (sometimes dozens of).

> Nobody knows how smaller and more
> maintainable they could be if designed differently. But they never will.
> 
And that is the key conclusion here. There are lots and lots of
system that use SQL. And that is a common denominator.
Good or bad, but that is the reality, and it will not likely
change in many years.

Meaning that lots of tools (reports/data mining/business
intelligence/buzzword/buzzword again) exists and is a big market.
It is no good then to say
- I streamed down my linked list of that keeps all of my inventory
to a blob that you can access if you write Ada-code only.
nor is it ok to say
- The 40 mb csv file is todays traceability on pallets,
make something useful of it, joined wit 5 other 100+ mb files.

You may say RDBMS:es are overused, and perhaps they are, but in my line
of work, they are indispensable.

-- 
--
Björn