Re: The original version

On Jul 12, 10:23 pm, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> vldm10 wrote:
> > In this post I would like to reflect on solutions for relationships,
> > given in Anchor Modeling. In fact it is not clear what a relationship
> > is.
>
> > In Section 3 of the paper the authors write: “Furthermore, the
> > relationships between the anchors are captured through ties”. But in
> > section 2 there is Def2 which says: “Def2.  An anchor A(C) is table
> > with one column”.
> > Now it turns out that the relationships between tables with one column
> > are captured through ties? Of course this is nonsense.
>
> So why bother mentioning it here?

There are a few reasons. One of them is my paper, which was earlier mentioned in this tread. The other reason is that there really is a lot of nonsense in Anchor Modeling. Here, for instance, is another more drastic one from Section 5.4: “Delete statements are allowed only when applied to remove erroneous data.” On the other hand, the authors claim their model keeps the entire (complete) history of data. We can imagine what happens at court when a judge asks for evidence which was grounds for suing and a company representative says, “we erased that data.” Or we can imagine how convenient erasing data is for crime in the case of online database applications. There are many more such errors in this paper, but I do not intend to address them. It can be said that Stockholm University (where the paper Anchor Modeling originated) is well-known and involved in well-known scientific events. Science in the developed countries of Europe and the United States is on the highest global level. In underdeveloped countries, the position of people in the field of science is much worse.
With the internet, professionals from informational technology are able to express their knowledge as independent individuals. I am sure this process will continue to develop in the future. This thread is unusual and probably boring to many, but I am sure that it is about problems which are among the most important in db theory. The importance of these problems is another reason why I am writing about the nonsense in Anchor Modeling.

Vladimir Odrljin Received on Thu Aug 05 2010 - 10:12:29 CEST