Summary
This presentation, from QCon SF 08, analyzes real world projects where using explicit state transition models was made and the many interesting modeling/architectural possibilities that arose from the decision. Along the way, the IMIS system and its performance is linked to explicit state transition modeling.

Bio
Greg Young is co-founder and CTO of IMIS, a stock market analytics firm. He has 10+ years of varied experience in computer science from embedded operating systems to business systems. You can often find Greg on experts-exchange.com where he runs the .NET section of the site. He is a frequent contributor to InfoQ.

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

Betfair ( www.betfair.com ), the world's largest betting exchange, transacts the equivalent of over half the combined equity trading volume of every major stock exchange in the world. In common with other industries, particularly the financial services sector, Betfair is experiencing both an increase in transaction volumes and decrease in value per transaction. Due to the increasingly demanding nature of exchange betting, Betfair launched a number of initiatives to dramatically increase transaction processing capacity and reduce cost.

This presentation covers the efforts that have been made over the years, in particular, the Flywheel project which successfully achieved the strategic aim of 50,000 low cost transactions per second. The technology is being extended and integrated across Betfair's betting exchange, a number of other company initiatives and has become the basis for the Tradefair financial exchange. 

Bio
Matt is Chief Technologist at Betfair and principal architect for much of its existing technology. More recently he has moved to the Advanced Technology Group focusing on strategy, research and special projects including Flywheel.

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, David Chase discusses Fortress, a Fortran-based highly parallel programming language. Topics covered include the origins of Fortress, mathematical syntax, the challenges of running on the JVM, parsing, work stealing, transactions, continuations, problems with blocking, the type system, type mapping, multiple dispatch and profiling.

Bio
David Chase works in the Programming Languages Research Group. Most of his time is spent on HPCS work; some of that takes the form of short notes. Chase is a big fan of language safety and high performance. He feels HPCS presents interesting problems in the design of "virtual machines" (interpreted generally, not narrowly) that hide and/or abstract away failure.

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
In this interview, recorded at QCon London, Google architect Gregor Hohpe talks to Stefan Tilkov about his new work on conversation patterns. Building upon his earlier work on enterprise integration patterns, Gregor sees conversation patterns as playing a critical role in real-world interactions, with analogies in the natural world.

Bio
Gregor Hohpe is a software architect with Google, Inc. Gregor is a widely recognized thought leader on asynchronous messaging and service-oriented architectures. He co-authored the seminal book "Enterprise Integration Patterns". In 2005, Joel Spolsky selected Gregor's article "Starbucks Does Not Use Two-phase Commit" for his "Best Software Writing".

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Summary
Brent VanderMeide continues his series on scopes this week with details on multi-level nested scopes.

Bio
Brent VanderMeide is a self-proprietor software engineering consultant at Code Impressions. As a software architect / sr. software engineer Brent has 9 years of experience creating innovative business applications. Brent often finds himself in the architect role of software. Everywhere he goes he brings innovative processes and solutions. Always on the cutting edge he loves learning the latest patterns and practices and applying which patterns fit the best for a particular solution. Brent has applied his software architecture and development skills for many large corporations including Intel, Micron, U.S. National Park Services, Johnson Controls International, Universal Studios, Sprint, and R.H. Donnelly Publishing & Advertising. With an extensive knowledge of the .Net framework, Brent has served solutions for all these clients using Microsoft’s .Net technology.

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Summary
Brent VanderMeide shows how to use database transaction scoping, incliding how to create and use your own scope class.

Bio
Brent VanderMeide is a self-proprietor software engineering consultant at Code Impressions. As a software architect / sr. software engineer Brent has 9 years of experience creating innovative business applications. Brent often finds himself in the architect role of software. Everywhere he goes he brings innovative processes and solutions. Always on the cutting edge he loves learning the latest patterns and practices and applying which patterns fit the best for a particular solution. Brent has applied his software architecture and development skills for many large corporations including Intel, Micron, U.S. National Park Services, Johnson Controls International, Universal Studios, Sprint, and R.H. Donnelly Publishing & Advertising. With an extensive knowledge of the .Net framework, Brent has served solutions for all these clients using Microsoft’s .Net technology.

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Summary
Eric Evans, the author of Domain Driven Design, interviews Greg Young about the architecture implemented for a system processing tens of thousands of transactions per second. It's not just the sheer number of transactions that is challenging, but the time constraints imposed are those specific to real-time systems. Greg reveals some of the architecture elements of the system's design.

Bio
Greg Young is co-founder and CTO of IMIS, a stock market analytics firm in Vancouver BC. With over 10 years of varied experience in computer science from embedded operating systems to business systems and everything in between, he brings a pragmatic and often times unusual viewpoint to discussions.

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Summary
In this presentation from QCon London, William Soo and Meeraj Kunnumpurath discuss the Voca transaction processing system architecture, the previous Mainframe-based architecture, architectural challenges and requirements, the new Spring and J2EE-based architecture, upcoming challenges for Voca, and technologies to watch for in the future.

Bio
William Soo is Head of Architecture and CTO at Voca. William is responsible for driving the technology vision, architecture, design and development of new generation of payments services for banks and corporates. Meeraj Kunnumpurath works as the Lead Technologist for VocaLink. He has published many books and articles on enterprise Java, web services and SOA.

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.

Read more about this video…