Continuation - An attempt at retriggering thought about past subjects

From: Cimode <cimode_at_hotmail.com>
Date: 18 Apr 2007 12:02:15 -0700
Message-ID: <1176922935.505038.163350_at_o5g2000hsb.googlegroups.com>

On the past two monthes, I have witnessed some shy but interesting attempts by Marshall and JOG at bringing some interesting subjects. I find some of these subjects useful for characterizing better or exploring unclear areas of database RM. Even though, I was very busy fixing up some poorly designed VLDB's, I felt very frustrated that some of these ideas seem lost because they do not draw conclusions or call for actions in their original threads. So I have thought about the idea of summarizing some of these themes in order to encourage people to continue the thinking on these subjects. The first idea here is really to set up some kind of reminder on previously called subjects and ask the question

I hope this may have some usefulness...

1. On a better formalization of reference definition, (subjects launched by Marshall)..I we came to the following formalization... (using math symbology I apologize in advance for being too terse)...

--Reference
R(a) レ S(b) ≡∀a E R,∀R(a): ∃b E S | ∃S(b) | a=b --Reference Unique
R(a) ル S(b) ≡∀a E R,∀R(a): ∃!b E S | ∃!S(b) | a=b

--> QUESTIONS: Do this still seem correct ?(In other words could it be
refined/improved) what could be the next step onto using that definition?

2) ON the idea of a database theory resource (idea exposed by JOG) JOG proposed the idea of creating a web site and some interesting proposition to fill it were made by participants:   > some proposed to give it a tactical edge by setting up modeling section --> Where is this idea? I proposed some help in hosting...   > some discussed the effectiveness of the website format, confronting the usefulness of learning process by proof and example and the learning by question/response format (FAQ type)
--> Do we have a conclusion on that? How to organize a website
according to these two guding principles

3) On the idea of what could be an applicative architecture for a relational driven applicative topology. Marshall mentionned the idea of *Widget* for presentation on devices embarking also schemas. Such topology would be superior because of an obvious efficiency in the exchanges between the TRDBMS and the device...

QUESTIONS: what kind of presentation *widgets* may be useful or recurring? Would that change the meaning of what an OS is?

I certainly have forgotten some other subjects but these were the one that gave me the feeling of unfinished business...

Constructive comments and Answers are welcome onto continuing these lines of thought...

Regards... Received on Wed Apr 18 2007 - 21:02:15 CEST