azure

New Refcardz on Azure

This morning I was looking for a quick summary of Windows Azure Storage queues to pass to a colleague.  I ran across a great new Refcardz by Brian H. Prince, an Architect Evangelist with Microsoft. Here’s the summary: This DZone Refcard on Cloud Computing with WIndows Azure Platform will introduce you to the platform and [...]

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facebook

Architecting Facebook

As a technologist, I find myself wondering “how exactly do they do that?” a lot. This is especially true for large software systems. Even more so for large, successful software systems. So, what about Facebook? What’s their architecture? Ask and you shall find… A very knowledgeable gentleman, Michaël Figuière, Software Engineer at Xebia, did all [...]

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vs

Visual Studio Async CTP

I just got the Visual Studio Async Community Technology Preview (SP1 Refresh) up and running and it is amazing. You can get it here. First, start with the Whitepaper: Asynchrony in .NET to get an overview of the new asynchronous features being developed for C#, Visual Basic and the .NET Framework.  Then, download the C# [...]

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dendrogram

Dendrogram Plots

I recently attended the Wolfram Seminar, “Statistics and Data Analysis with Mathematica“.  The discussion on Hierarchical Clustering was especially interesting to me.  They showed a dendrogram plot for some sample text data. A dendrogram is defined here as: A dendrogram (from Greek dendron “tree”, -gramma “drawing”) is a tree diagram frequently used to illustrate the [...]

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iosbetabldr

iOS Beta Builder

iOS Beta Builder is a very useful iOS deployment tool from a very generous developer, Hanchor LLC.  An excerpt from the announcement: Enter ‘iOS BetaBuilder’ – a simple MacOS X app takes your archived IPA file and creates the required manifest and HTML files for wireless distribution. It even zips up a copy of the [...]

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smart

Making S.T.U.P.I.D. Users S.M.A.R.T.

Whenever I need a full-strength dose of Usability Reality, I wander over to Boxes and Arrows, one of the best peer-written websites on design, user interaction, and information architecture. An article was posted yesterday that is brimming with brilliance: “Are your users S.T.U.P.I.D.? How good design can make users effective“. Please take the time to [...]

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pearl

Fun with Perl: topbiz.pl

#!C:/Perl/bin/perl # Dom Virgilio # Grab top business stories from Yahoo RSS feed # Notes:  perl topbiz.pl # turn on perl’s safety features use strict; use warnings; my $pathname = “http://rss.news.yahoo.com/rss/business”; use XML::RSS; use LWP::Simple; my $rss = new XML::RSS; my $url2parse = get($pathname) or die “Unable to access Yahoo RSS feed.”; $rss->parse($url2parse); # Print [...]

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100

“100% Code Coverage”

There’s a nice exchange of ideas going on in the DZone ‘Javalobby’ based on a Nicolas Frankel blog entry called “100% code coverage!” that was posted recently on “A Java geek!“.  The original post is here. Frankel’s assertion “code coverage and test are completely different things” is right on the money… as is his very [...]

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mysql

MySQL Query Cache

First, for the uninitiated, here’s a little background: There are three primary MySQL caching techniques: file-based, application, and the built-in query cache.  There’s a good overview of the techniques here. In the simplest sense, the MySQL Query Cache stores the text of the query and the result of the query in memory.  The Query Cache [...]

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cloud

VMware’s Cloud Foundary

I just signed up for the VMware Cloud Foundary Beta, watched the developer videos, and I’m already impressed. Cloud Foundary is “The Open Platform as a Service (PaaS)”.  Their definition of ‘cloud’ is somewhat different than a lot of  vendors.  Their cloud can be “on your laptop on an airplane” or behind a firewall, for [...]

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