InfoQ Homepage Architecture Content on InfoQ
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The Software Architecture Impact of the Multi-Core Processor Trend
A JDJ article explains that as we move towards Multi-Core processor architectures, single threaded performance improvement is likely to see a significant slowdown over the next one to three years. In some cases, single-thread performance may even drop. This in turn will require software developers change the way we develop software, increasing our utilization of parallel execution architectures.
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Article: The Box: A Shortcut to finding Performance Bottlenecks
Quite often performance problems will be reported with some very antidotal comments that do nothing to help you understand where to start looking. Faced with this dilemma, it is not uncommon for teams to start guessing at the root cause. Now enter "the box", a little diagram that is an abstraction of a complete system. The box is a reminder of the true cases of performance bottlenecks.
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Ted Neward's thoughts on Architecture Roles & Responsibilites
Ted Neward shares his thoughts on the roles and responsibilities of the Software Architect, discussing what an architect does, how to approach the role, and if architects are still relevant.
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Charles Simonyi reveals production use of Intentional Software @ JAOO
Charles Simonyi (recent space tourist, and ex-Microsoft lead architect of Word & Excel) presented Intentional Software at the JAOO conference today. Intentional is building a domain language workbench, which allows business experts write domain code in their own familiar notations, that code then being used to generate the rest of an application.
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Is it too late for Parrot VM?
The Parrot Virtual Machine recently had it’s sixth birthday. Parrot is a VM that sprung out of the Perl6 development, which primarily targets dynamic languages, but also for instance .NET and C99. But six years is a long time, and both Microsoft and Sun is targeting this segment. Is it too late for Parrot?
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Presentation: Operational Manageability lessons learned from eBay
You're confident that your software will handle horizontal scale to thousands of servers. But how about your operational team? Have you also architected for managing that large collection of servers? Dan Pritchett will present lessons learned at eBay and lead a discussion on how to ensure your transactional scalability doesn't ignore your architecture's manageability.
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Kent Beck, Martin Fowler, Speaking at QCon SF Nov 7-9
Kent Beck & Martin Fowler will be keynoting & delivering tutorials at the QCon San Francisco Nov 7-9th conference. Also, the schedule has been finalized with a new complete track covering security from a development perspective, and also a panel on the future of Java development including Joshua Bloch, JRuby's Charles Nutter, Spring's Rod Johnson, and .NET's Erik Meijer.
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Book Excerpt and Review: Smart (Enough) Systems
Smart (enough) Systems is a book about Enterprise Decision Management. To make your systems smart enough, your core problem is knowing what's the right decision to make and how to make it when required. EDM is becoming a strategic area in IT as many organizations have found a gap between gaining insights from business intelligence and taking action to exploit that insight in operational decisions.
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Language-oriented programming : an evolutionary step beyond object-oriented programming?
At a recent conference, Martin Fowler and Neal Ford develop the concept of language-oriented programming and question the eventuality for Domain Specific Languages to become a new abstraction and modelling mechanism. This could be "the next evolutionary step beyond object-oriented programming", especially since major vendors start offering IDE tooling for DSLs.
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Combinatorical Enterprise Architecture - a journey from chaos to pseudo-chaos
Sean McGrath shares some thoughts about how to manage unavoidable complexity in the problem domain through what he calls a "Combinatorical Enterprise Architecture" - which in essence means to identify the key patterns of behavior within the problem domain chaos, and combine them into a more simplistic "pseudo-chaos".
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Interview: Eric Evans on Domain Driven Design
Ever since Eric Evans wrote the book Domain-Driven Design in 2004 he has been a significant voice advancing domain modeling and design concepts. In this interview with Floyd Marinescu he talks about some of the recent refinements in Domain-Driven Design and how people are advancing the field today.
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Fault Tolerance and the Grid
Arjuna Technologies, the company behind the world's first Java transaction service and Web Services transactions implementations, has turned its attention to the world of the Grid. What's involved in developing reliable Grid applications and are the current Data Grid infrastructures really up to the job?
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Confusing unit-of-work with threads
Most server-side applications and many desktop applications contains data that is tied to a particular task that’s being executed. A common solution is to keep that kind of data in thread-local storage; to keep the data in variables bound to the executing thread. Convenient, but a practice based on a faulty assumption.
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Gone in 160 seconds - cracking passwords with Rainbow Hash Cracking
The Microsoft password strength checker rates "Fgpyyih804423" as a strong password, but the multi-platform password cracking tool ophcrack was able to crack it in 160 seconds using a Rainbow Hash Table attack. Jeff Atwood takes a look at this attack technique, and offers suggestions for safe password storage.
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Metastorm Aquires Proforma
Metastorm, the maker of the Metastorm BPM Suite, has acquired Proforma, an Enterprise Architecture/Process Modeling tool vendor. The acquisition makes Metastorm one of the few vendors able to offer BPM and EA Modeling together.