From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: a07f3367d7,dea2d62ab1462538
X-Google-Attributes: gida07f3367d7,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news2.google.com!postnews.google.com!k35g2000yqb.googlegroups.com!not-for-mail
From: Shark8 <onewingedshark@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Writing an Operating System in Ada
Date: Tue, 19 Jan 2010 13:09:01 -0800 (PST)
Organization: http://groups.google.com
Message-ID: 
 <88a96cdf-22a8-4825-8e74-056bbd66f127@k35g2000yqb.googlegroups.com>
References: 
 <da0b481d-9380-457a-94cf-c28c465ce78c@k19g2000yqc.googlegroups.com>
	<sg7o147u4q26.1y1lzuwi5ofjs$.dlg@40tude.net>
 <8e9bc311-7540-40a1-b19e-49e93648c25c@s31g2000yqs.googlegroups.com>
	<9oyblld05omh$.1dzhmyoseeb7x$.dlg@40tude.net>
 <14f3ba77-f47d-45db-bf6f-bca3dfa0a3f4@r24g2000yqd.googlegroups.com>
	<4B4CFA2C.6020109@nowhere.com>
 <a12c83c8-9867-4759-964d-4c77f5b9afb5@h9g2000yqa.googlegroups.com>
	<4B50F011.1000308@nowhere.com>
NNTP-Posting-Host: 128.123.64.216
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
X-Trace: posting.google.com 1263935342 9176 127.0.0.1 (19 Jan 2010 21:09:02
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Tue, 19 Jan 2010 21:09:02 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: k35g2000yqb.googlegroups.com; posting-host=128.123.64.216;
	posting-account=lJ3JNwoAAAAQfH3VV9vttJLkThaxtTfC
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.15)
	Gecko/2009102100 SUSE/3.0.15-0.1 Firefox/3.0.15,gzip(gfe),gzip(gfe)
Xref: g2news1.google.com comp.lang.ada:8799
Date: 2010-01-19T13:09:01-08:00
List-Id: <comp.lang.ada>

> > Aren't associations rather trivial if we derive all files from some
> > base tagged-type and use the tag as the type-identifier?
>
> Only for -to one. But how about -to many and -to one or many or ....
>
> For me associations are also almost always bidirectional.
>
> So just a simple tag reference may not be enough and standardised ways
> to navigate would be great.

Good catch. There are several case that we need to be aware of:
programs/operations that can take such a file as input, that produces
such as output, AND the DEFAULT[s]. This could be done with a registry
[database, relational] that tracks the associations.