The points are serious issues. However, the best summary comes from Karl Guertin: "My explanation is that Duck Typing is like Ethernet, in theory it will break, but in practice it works pretty well."

There were three questions which raised four issues. The questions included the seemingly incomplete OO implementation …

This is an important topic. I've blogged on the layers issue before ("Layers, Interfaces and Mutabilty "), and this AJAX issue is a great additional point.

With depressing regularity I also hear the complementary "stored procedure" question. This question takes a number of different forms, but they all mean the same …

I'm very excited to be giving a presentation at PyCon '07. A 30-minute slot is tough because the Star Schema can be confusing. The coding is pretty transparent (IMO), but the background for why I had to do this and places where it can be used are more interesting than …

In the CW article, pseudonymous Mathias Thurman describes a demonstration of Microsoft's Rights Management Services product. The audience of executives identify a number of "Suppose..." scenarios, which the author dismisses as merely research subjects, concluding that "...the goal of this proof of concept was to introduce a group of executives …

Here's the full, minimally-edited question:

"We are having a debate about the basic way the UI, Business Logic, and Data Access layers communicate.

My experience has been that the UI talks to the BizLogic, and the BizLogic maps between itself and the Data Access layer.. like this:

::

UI -> BizLogic -> Data …

First, see "OSCON - Open Data " by Tim Bray, then see "Set My Data Free " in Kontrawize.

Here are some quotes "At the end of the day, information outlives software and transcends software and is more valuable than software." "Data matters. It shouldn't be an afterthought. It will outlive your applications …

I do a fair amount of manual refactoring. I've used WebSphere Studio (Eclipse) to do some automated refactoring, so I have some experience in using IDE's which exploit Java's static type-checking.

However, the question of type checking in a dynamic language is interesting. I don't use a sophisticated IDE for …

In one case, the prospect had 7 interlocked databases, and wanted to do a technology upgrade. In other cases, the numbers was larger (up to 30, I think) but the problem was the same.

Essentially they said "It's taking us forever to rework this design. What should we do that …

Binstock does a quick compare and contrast between Ruby and NetRexx, showing how an active community promoted Ruby, and NetRexx's lack of a community left it languishing. I think that this analysis is only partly true, and misses part of the value of open source.

Specifically, IBM's proprietary NetRexx can't …

See The hubris of calendrical calculations. And Calendrical Calculations, Part 2.

"Here are the exact words from the client when I suggested using the "official calendar": I’m aware of other systems having tables for Holidays but I don’t know that we can piggy back off any of them …