
Attila Szegedi talks about performance tuning Java and Scala programs at Twitter: how to approach GC problems, the importance of asynchronous I/O, when to use MySQL/Cassandra/Redis, and much more.

One category of risk that project teams need to ensure they address is business value failure – delivering a product that fails to provide value for the business investor.

InfoQ spoke to the authors of Software Systems Architecture on a couple of new topics, the System Context viewpoint and Agile, which have been added to the second edition.

Alex Papadimoulis discusses ugly code, where it comes from, how to avoid it, and how to get rid of it.

John Davies examines Visa’s architecture and shows how enterprises have architected complex integrations incorporating Hadoop, memcached, Ruby on Rails, and others to deliver innovative solutions.

Sean Comerford unveils ESPN.com’s architecture, what components are used and why, and the current changes the website goes through.

Are there repeated patterns of failure on Enterprise Agile Enablement efforts? Sanjiv and Arlen discuss Seven Deadly Sins to avoid when adopting Agile in an enterprise.

Erik Dörnenburg answers: What is Enterprise and Evolutionary Architecture?, discussing 4 issues: Turning strategy into execution, Ensuring conformance, Where do the architects sit? Buying or building?
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