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Scalability Principles

At the simplest level, scalability is about doing more of something. This could be responding to more user requests, executing more work or handling more data. This article presents some principles and guidelines for building scalable software systems.

Simon Brown
on May 21, 2008
Book Excerpt and Interview: FXRuby: Create Lean and Mean GUIs with Ruby

"FXRuby: Create Lean and Mean GUIs with Ruby" is a new book about the FXRuby GUI library. InfoQ talked to the book's author Lyle Johnson. Also: an InfoQ-exclusive sample chapter from the book.

Werner Schuster
on May 19, 2008
Creating Product Owner Success

The role of the Scrum Product Owner is powerful, but challenging to implement. Success can bring a new and healthy relationship between customers/product management and development, even competitive advantage, but it comes at a price: organizational change is often required. In this article Roman Pichler looks at what it takes to succeed as a Product Owner.

Roman Pichler
on May 14, 2008
Book Excerpt and Interview: Effective Java, Second Edition

Effective Java, Second Edition by Joshua Bloch is an updated version of the classic first edition, which was the winner of a 2001 Jolt Award. This edition has been updated to discuss Java 6 language features including generics, enums, annotations, autoboxing, the for-each loop, varargs, and concurrency utilities. InfoQ asked Bloch several questions about the areas that the new edition covers.

Ryan Slobojan
on May 13, 2008
Tapestry for Nonbelievers

A new article by Igor Drobiazko and Renat Zubairov provides an introduction to version 5 of the Apache Tapestry component-oriented web framework. The tutorial shows readers how to create a component. It also covers Tapestry's IoC features and Ajax support that is provided through Prototype and script.aculo.us.

Renat Zubairov Igor Drobiazko
on May 10, 2008
Culture & Methods

Distributed Version Control Systems: A Not-So-Quick Guide Through

Since Linus Torvalds presentation at Google about git in May 2007, the adoption and interest for Distributed Version Control Systems has been constantly rising. We will introduce the concept of Distributed Version Control, see when to use it, why it can be better, and have a look at three actors in the area: git, Mercurial and Bazaar.

Sebastien Auvray
on May 07, 2008
Fine Grained Versioning with ClickOnce

ClickOnce makes it easy to deploy WinForms applications. But while it has some versioning support, it has no built in way to deliver different versions to different people. This makes partial rollouts to a test audience difficult. David Cooksey shows how to fine grained versioning to a ClickOnce deployment using an HttpHandler written with ASP.NET.

David Cooksey
on May 06, 2008
Implementing Manual Activities in Windows Workflow

Windows workflow is an excellent framework for implementing business processes. One thing that is missing in it is direct support for human activities. Several approaches to solving this problem exist, but they are not generic enough for general usage. In this article we will define one of the approaches to a completely generic implementation of human activities in WF.

Boris Lublinsky
on May 05, 2008
Interview: Emmanuel Bernard on the Bean Validation specification

Following on from a previous article on the early draft of the Bean Validation framework, InfoQ sat down with Emmanuel Bernard to learn more about the proposal and the community involvement the expert group is seeking.

Charles Humble
on Apr 29, 2008
Software Development Lessons Learned from Poker

There is no silver bullet. We know it, but don't act like it. Your language, tool or process is better, right? Jay Fields says: "It depends". The right choices varies with context, people, and more. This article touches upon how a lot of things must impact a choice; learning culture, skill levels, teamwork, incomplete information, metrics - and context.

Jay Fields
on Apr 26, 2008
InfoQ Interviews BPEL4People Representatives

In another "virtual panel session", we took the opportunity to talk with representatives of the new OASIS BPEL4People Technical Committee and get their feedback on just why we need this work. Apart from asking them what BPEL4People (and WS-HumanTask) are all about, we asked them how this relates to other BPMN efforts and what else we can expect in this area.

Mark Little
on Apr 24, 2008
Building Domain Specific Languages on the CLR

In his latest article Ayende Rahien introduces internal DSLs as a means of creating Domain-Specific Languages without having to deal with the complexity of designing a completely new language. He compares different .NET languages as suitable host languages for DSLs and presents Boo as an ideal candidate due to its meta programming facilities, flexibility, and performance.

Ayende Rahien Oren Eini
on Apr 21, 2008

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