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Summary
Neal Gafter explains why Microsoft has introduced dynamic typing in C# 4.0, what it is useful for - Interoperate with dynamic languages, Using reflection-like API, Interacting with COM -, what is DLR, and why they have chosen the dynamic type instead of other possible solutions.

Bio
Neal Gafter works on .NET languages at Microsoft. He used to be a software engineer and Java evangelist at Google. Previously, at Sun Microsystems, he designed and implemented the Java language features in releases 1.4 through 5.0. and led the development of C and C++ compilers at Sun Microsystems, Microtec Research, and Texas Instruments. He holds a Ph.D. in CS from the University of Rochester.

About the conference
The 2009 JVM Language Summit is an open technical collaboration among language designers, compiler writers, tool builders, runtime engineers, and VM architects. The talks inform the audience, in detail, about the state of the art of language design and implementation on the JVM, and the present and future capabilities of the JVM itself.

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Summary
In this talk from FutureRuby, Joseph Wilk gives an introduction to the BDD framework Cucumber and gives valuable tips for getting it adopted and used by customers and developers.

Bio
Joseph Wilk is a member of the core development team for Cucumber along with Aslak Hellesøy. He has been developing for the web for 10 years in both big and small companies and as an entrepreneur. After stints working with Java and Python he found Ruby. He now spends his time having more fun than is healthy working as a Software Gardener building web systems and working on open source projects.

About the conference
FutureRuby isn't a Ruby conference, but a conference for Rubyists. This is a call to order - a congress of the curious characters that drew us to this community in the first place. We have a singular opportunity to express a long-term vision, a future where Ruby drives creativity and prosperity without being dampened by partisan politics.

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Summary
Avi Bryant talks about the iterative process that led to Trendly (http://trendly.com/ ), using Javascript, Ruby and Java in the process. He goes on to give his view on the state of Smalltalk and Squeak and talks about his experiments with writing a Smalltalk that compiles to idiomatic Javascript to make use of all the modern Javascript VMs.

Bio
Avi Bryant is the co-CEO of Dabble DB, a Vancouver startup focused on web-based data management and collaboration tools. He is the author of the Seaside web application framework, and is active in the open source Squeak Smalltalk community. His latest project is http://trendly.com/

About the conference
FutureRuby isn't a Ruby conference, but a conference for Rubyists. This is a call to order - a congress of the curious characters that drew us to this community in the first place. We have a singular opportunity to express a long-term vision, a future where Ruby drives creativity and prosperity without being dampened by partisan politics.

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Summary
In this talk from FutureRuby Adam Blum shows Rhodes, an open source Ruby-based framework for building locally executing apps with access to device features for all major smartphone devices.

Bio
Adam Blum is CEO of Rhomobile , the open mobile framework company. He is a longtime founder/CTO/VP of Engineering of several successful startups in the web services and mobile spaces (Commerce One, Systinet, Good, Mobio). He is also an adjunct professor at Carnegie Mellon University and advisor to several other software companies.

About the conference
FutureRuby isn't a Ruby conference, but a conference for Rubyists. This is a call to order - a congress of the curious characters that drew us to this community in the first place. We have a singular opportunity to express a long-term vision, a future where Ruby drives creativity and prosperity without being dampened by partisan politics.

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Summary
Ulf Wiger shows typical Erlang programs, patterns that scale well on multicore and patterns that don't, profiling and debugging parallel applications and ensuring correct behaviour with QuickCheck.

Bio
Ulf Wiger is the CTO of Erlang Training and Consulting. He has worked for Ericsson and was Chief Designer of the AXD 301 development. At nearly 2 million lines of Erlang code, AXD 301 is the most complex system ever built in Erlang. In recent years, Ulf has been involved in several products based on the AXD 301 architecture, and has been an active member of the Open Source Erlang community.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
Martin Fowler talks about ThoughtWorks's experience with using Ruby on client projects for the past three years, and the creation of a Ruby-based product 'Mingle'.

Bio
Martin Fowler is an author, speaker, consultant and general loud-mouth on software development. He's the Chief Scientist at ThoughtWorks - an international application development company, and has written five books on software development and also writes articles regularly on http://www.martinfowler.com/ .

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
This presentation explores how Erlang addresses the general problem of concurrent, real-time, fault-tolerant, and distributed parallel computing. The author argues that changes in the world of hardware and the complexity of the programs we write assure that sequential programs will decline in performance but parallel programs will increase performance.

Bio
Joe Armstrong is the principle inventor of the Erlang programming Language and author of the book Software for a concurrent world. He worked for Ericsson where he developed Erlangand in 1998 formed Bluetail, working exclusively in Erlang.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
This presentation explores how Erlang addresses the general problem of concurrent, real-time, fault-tolerant, and distributed parallel computing. The author argues that changes in the world of hardware and the complexity of the programs we write assure that sequential programs will decline in performance but parallel programs will increase performance.

Bio
Joe Armstrong is the principle inventor of the Erlang programming Language and author of the book Software for a concurrent world. He worked for Ericsson where he developed Erlangand in 1998 formed Bluetail, working exclusively in Erlang.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
David Pollak talks about using Scala to write the Lift web development framework and his desire to write a productive framework that allows the developer to write concise code on top of a very strongly typed language.

Bio
David Pollak has been writing commercial software since 1977. He wrote the first real-time spreadsheet and the world's highest performance spreadsheet engine. Since 1996, David has been using and devising web development tools. David has also developed numerous commercial projects in Ruby on Rails. In 2007, he founded the Lift Web Framework.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
In the Ruby world, no serious programmer would write an application without a comprehensive test suite. Unfortunately, the realities of integration testing the presentation layer of an Ajax-heavy web application has forced today's programmers to rely on kludges like HTML parsing in Ruby (which can't be used to test JavaScript comprehensively) or Selenium (which requires real-life browsers on every platform armed and ready). Screw that! With Johnson, a transparent Ruby to JavaScript bridge, you can test your JavaScript-heavy pages with ease. Because Johnson is embedded inside of Ruby, you'll be able to run tests directly in JavaScript, and then access JavaScript components in the tests (think Rails.dispatch_to("controller", "action")). I'll show you how to use Screw.Unit for browserless tests of your presentation layer. If you use continuous integration (and you should), you'll be able to easily catch bugs in your presentation layer without having to defer to a real browser running your tests. 

Bio
Yehuda Katz is the plugins team leader of the jQuery project. He is also a core team member of the Merb and Ruby on Rails. Yehuda currently works at Engine Yard, where he works on the Merb Ruby framework. Yehuda is the author of jQuery in Action, and is a contributing author for Ruby in Practice.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
The idea of internal DSLs didn't originate in Ruby, but the Ruby community has been pushing hard on the idea and exploring its potential and limitations over the past seven years or so. We're still very excited by the possibilities, but we've definitely learned some things not to do. Mostly we've learned that DSL's aren't magic -- either the white kind (they don't solve all your problems) or the black kind (they aren't really that hard to build). In this talk we'll discuss the lessons the Ruby community has learned, and learn how to build state-of-the-art DSLs without going overboard. 

Bio
Glenn Vanderburg is a consultant at Relevance focused on cutting-edge software development technologies and techniques, including Ruby, JavaScript, Ajax, and state-of-the-art development practices.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
In this presentation from the JVM Languages Summit 2008, Rich Hickey discusses Clojure, which is an implementation of Lisp. Topics covered include Clojure features and syntax, example code, interoperation with Java, Clojure and functional programming, persistent data structures, concurrency semantics, references, transactions, software transactional memory, agents, implementation and pain points.

Bio
Rich Hickey, the author of Clojure, is an independent software designer, consultant and application architect with over 20 years of experience in all facets of software development. Rich has worked on scheduling systems, broadcast automation, audio analysis and fingerprinting, database design, yield management, exit poll systems, and machine listening.

About the conference
The 2008 JVM Language Summit is an open technical collaboration among language designers, compiler writers, tool builders, runtime engineers, and VM architects. The talks inform the audience, in detail, about the state of the art of language design and implementation on the JVM, and the present and future capabilities of the JVM itself.

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Summary
At RubyFringe John Lam talks about his path to dynamic languages, some of the problems of making IronRuby run fast, and how the DLR helps with implementing languages.

Bio
John Lam John works on the IronRuby project at Microsoft. IronRuby is an Open Source implementation of Ruby that runs real Ruby programs. John and his family recently relocated to Seattle from Toronto and they're loving the left coast lifestyle.

About the conference
RubyFringe is an avant-garde conference for developers that are excited about emerging Ruby projects and technologies. They're mounting a unique and eccentric gathering of the people and projects that are driving things forward in our community.

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Summary
In this interview, John Lam, Program Manager on the Dynamic Language Runtime team at Microsoft, talks about IronRuby, what it means to .NET supporters and how it has been received by the Ruby community.

Bio
John Lam is Program Manager on the Dynamic Language Runtime team at Microsoft. He created RubyCLR, and is now working on the team that is creating IronRuby, Microsoft's implementation of Ruby.

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Summary
In this interview, Avi Bryant talks about the Smalltalk web framework Seaside, DabbleDB, using Smalltalk images for persistence instead of an RDBMs, GemStone and more.

Bio
Avi Bryant is the co-CEO of Dabble DB, a Vancouver startup focused on web-based data management and collaboration tools. He is the author of the Seaside web application framework, and is active in the open source Squeak Smalltalk community.

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Summary
In this presentation from InfoQ Day at Java One, Thomas Enebo and Charles Nutter show off the current state of the JRuby project, which has come a long way under their stewardship. The presentation shows compelling demonstrations of how the Ruby language and key Ruby applications can function well on the Java Virtual Machine.

Bio
Charles Nutter of the JRuby development team has been working to redesign JRuby's core interpreter and improve compatibility with Ruby 1.8. Lately he has been focusing on getting key Ruby applications to work. JRuby Project Manager and lead developer, Thomas Enebo is interested in web application development and the Ruby programming language.

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Summary
Scripting languages are of growing importance, and they are typically dynamically typed. This session discusses improved support for these languages in the JVM, through the use of the new invokedynamic bytecode and through improved support for hot-swapping--modifying code and classes on the fly while maintaining the JVM software's security and integrity.

Bio
Gilad Bracha is a Distinguished Engineer at Cadence Design Systems. At the time of this recording, he was a Computational Theologist and Distinguished Engineer at Sun Microsystems. He is co-author of the Java Language Specification, and a researcher in the area of object-oriented programming languages.

About the conference

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Summary
Guillaume Laforge, Groovy project manager, teaches how scripting with Groovy can increase your productivity and help you build and test solutions faster on the Java platform. Topics include Groovy the language, Ant builder, XML support, Swing support, Groovy's Meta Object Protocol, and more.

Bio
Guillaume Laforge is Groovy PM and spec lead of JSR-241; he is also co-authoring Manning's "Groovy in Action" with Dierk König. In his professional life, Guillaume is a software architect and Open Source consultant, working for OCTO Technology, a French consultancy focusing on architecture of software and information systems.

About the conference

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Summary
In this presentation, we discuss how to keep that productivity while reducing the risk that chaos often brings. We examine key agile practices, that when applied judiciously to Ruby, retain the amazing productivity, improve the quality of the code, and still let the programmers have fun.

Bio
Fred George is a consultant with over thirty-eight years experience in the industry. A veteran of the IBM-Microsoft wars, he did early work in computer networking,LAN's,GUI's and objects for IBM. An independent consultant from 1991-2003, he counted HP, Morgan-Stanley, American Express, IBM, and USAA among his clients. He joined ThoughtWorks in 2003, delivering more projects using agile processes.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Ryan Davis, known as "zenspider", is one of the highest-profile Rubyists in the world, and arguably one of the most influential ones. He is the author of a number of valuable Ruby open-source tools, including RubyInline and ZenTest. In this exclusive InfoQ interview, Ryan gives us a glimpse into how he has been pushing the envelope of what's possible with the Ruby language and runtime since 2000.

Bio
Ryan Davis is an object-oriented languages bigot. He cut his teeth on Smalltalk, which made him a really bad C programmer. He got into Ruby when it came around in 2000 because "it just felt right." Ryan is a hacker in the true, positive sense: He spends a lot of time writing code and the Ruby community is all the better for that fact.

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Summary
InfoQ Ruby editor Obie Fernandez interviews Tim Bray, one of the inventors of XML and current Director of Web Technologies for Sun Microsystems. We cover varied topics such as his opinions about Ruby and Rails, the impact of dynamic languages on web development, static versus dynamic typing, Sun's support of the JRuby project, Atom, and WS-* versus REST approaches to systems integration.

Bio
Tim Bray managed the Oxford English Dictionary project at the University of Waterloo in 1987-1989, co-founded Open Text Corporation (Nasdaq:OTEX) in 1989, and co-invented XML in 1996-98. Currently, he serves as Director of Web Technologies at Sun Microsystems, co-chairs the IETF "Atompub" working group, and publishes a popular weblog (http://www.tbray.org/)

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Summary
Top rubyist Rich Kilmer gives InfoQ visitors an eye-opening look into his years of success using Ruby to tackle tough defense-related challenges at Darpa. Our interview covers a wide range of cutting-edge technologies from DSLs to Semantic Web technologies such as OWL, to using Flash as a front-end UI framework.

Bio
Rich Kilmer is the founder of Virginia-based software and services company InfoEther, Inc. His background includes peer-to-peer software, wireless web, workflow, and pen computing. His current projects make production use of Ruby on several DARPA research projects. He is an active member of the Ruby development community working on Alph, FreeRIDE, RubyGems, RubyJDWP and hosts RubyForge.org.

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Summary
Groovy project manager Guillaume Laforge discusses the history of Groovy, it's relationship to Java, where Groovy fits into Java development,how Groovy compares to Ruby, how Groovy enables domain-specific languages, and what future Groovy development will focus on.

Bio
As the official Groovy Project Manager, Guillaume Laforge spends his spare time bringing a versatile and agile environment to the masses and initiated a year ago the seed of Grails, the Groovy & Spring web framework. Guillaume is also a software architect and Open Source consultant, working for OCTO Technology, a French consultancy focusing on architecture of software and information systems

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Summary
Evan Phoenix discusses Rubinius, a modern Ruby VM loosely based on the Smalltalk-80 architecture. The goal is to build a fast, efficient VM with the latest research in dynamic language implementations

Bio
Evan Phoenix is main developer behind the Rubinius project, a modern Ruby VM loosely based on the Smalltalk-80 architecture. He is currently employed by Engine Yard to continue to lead the development of this next generation Ruby VM. Evan blogs at http://blog.fallingsnow.net/.

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Learn how the Dynamic Language Runtime (DLR) works in Silverlight. Includes an introduction to Microsoft Silverlight for Python and Ruby programmers.

Speakers: Jimmy Schementi, John Lam

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Summary
In this interview, John McCarthy presents his latest programming language ideas; Elephant 2000. He describes elephant memory, references to the past and to the future and how speach acts can be used in programming. He also presents his view on Lisp's influences on Ruby and his view of the history and current state of the computer industry.

Bio
John McCarthy received the Turing Award in 1971 for his major contributions to the field of Artificial Intelligence. He was responsible for coining the term "Artificial Intelligence" in 1955, invented the Lisp programming language and pioneered time-sharing. John McCarthy is currently Professor Emeritus at Stanford University.

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Summary
Glenn Vanderburg makes the case for Javascript, a language long overlooked. This presentation from JAOO 2007 shows how its OOP model and other language features make it a very powerful tool and how to use these features to get the most out of the language.

Bio
Glenn Vanderburg is an independent consultant focused on cutting-edge software development technologies and techniques, including Ruby, JavaScript, Ajax, and state-of-the-art development practices.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this interview, Avi Bryant talks about working on GemStone's MagLev, a Ruby implementation built on the GemStone S64 VM. Avi explains the reasons for MagLev, the merits of GemStone's persistence and distribution features, and the future with multiple Ruby implementations.

Bio
Avi Bryant is the co-CEO of Dabble DB, a Vancouver startup focused on web-based data management and collaboration tools. He is the author of the Seaside web application framework, and is active in the open source Squeak Smalltalk community.

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Summary
Neal Ford talks about Mingle, Thoughtworks Studios' project management software. Mingle is written or JRuby - Neal explains the experience with building a product on JRuby, solutions to problems, and future plans for using JRuby in Mingle.

Bio
Neal Ford is an senior application architect at ThoughtWorks. His primary consulting focus is the building of large-scale enterprise applications. He is also an internationally acclaimed speaker, having spoken at numerous developers conferences worldwide. Check out his web site at www.nealford.com.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation from QCon San Francisco 2007, Jason Rudolph gives an overview and demonstration of Grails. Topics covered include Java/Grails integration, Grails plugins, creating a complete Grails sample application from scratch, the structure of a Grails application, data querying and persistence, validation, controllers and tag libraries.

Bio
Jason Rudolph is a Principal at Relevance, a leading consultancy and training organization specializing in Ruby, Rails, Groovy, and Grails, and integrating them into enterprise environments. Jason has more than eight years of experience in developing software solutions for domestic and international clients of all sizes, including start-ups, Dow 30 companies, and government organizations.

About the conference
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community.QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

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Summary
In an interview at OOPSLA, Dave Thomas talks about the reasons for the rise of Java, what's behind Web 2.0, MDA and SOA, the rise of dynamic languages and the opportunities that he sees in the web as a platform.

Bio
Dave Thomas is the managing director of Object Mentor, founder and chairman of Bedarra Research Labs and adjunct research professor at Carleton University and the University Of Queensland. He is known as founder and past CEO of Object Technology International Inc., a pioneer company in Agile development, and has been involved with the Eclipse IDE, the IBM virtual machine and Smalltalk tooling.

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Summary
In this interview taken during QCon 2007, Brian Zimmer talks about the architectural challenges he has faced working on Orbitz.com, one of America's most popular online travel booking sites. He touches the subject of dynamic languages and their importance in augmenting Java in order to become a better and richer platform.

Bio
Brian Zimmer is the lead of the Architecture and Infrastructure group at Orbitz Worldwide. Brian is responsible for directing the development of the company's distributed infrastructure, reviewing technical designs for adherence to architectural principles and overseeing the creation of domain models and service APIs.

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