InfoQ Homepage Architecture Content on InfoQ
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Interview: Smalltalk Dave about Programming Languages, SOA, MDA and the Web
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.
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MagLev: Gemstone builds Ruby runtime based on Smalltalk VM
OODB vendor Gemstone works on a Ruby VM called MagLev. Working with Seaside's and DabbleDB's Avi Bryant, Gemstone bases the Ruby runtime on their Smalltalk VM to offer performance and powerful persistence features. We talked to Avi Bryant and Gemstone's Bob Walker about the technology behind MagLev and the plans for it.
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Google 'simplifies web development' with AppEngine
At Campfire One on April 7th, 2008, Google introduced Google App Engine as a way to simplify the job of creating, running and scaling web applications, to make it 'easy.' In essence, Google App Engine allows you to build web applications locally using and then deploy them on Google's infrastructure.
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CohesiveFT's Elastic Server On-Demand - Easy Server Provisioning
CohesiveFT's Elastic Server On-Demand is a SaaS platform that allows virtualized application stacks to be dynamically defined and provisioned on-demand, doing in minutes what can take hours or days. InfoQ spoke with Alexis Richardson about the service and how it helps simplify the complexity of virtualization.
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Making the Business Case for Software Factories
In this article, the authors have tried to carefully quantify the benefits of using a Software Factory Methodology for automating repetitive developments in a large enterprise development project at Siemens.
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Amazon upgrades EC2 with Persistent Storage
Amazon’s Elastic Computer Cloud (EC2), which delivers Hardware as a Service (HaaS), is adding persistent storage to its list of features. Amazon CTO Werner Vogels write that "Persistent storage for Amazon EC2 will be offered in the form of storage volumes which you can mount into your EC2 instance as a raw block storage device."
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Combining General Purpose Languages and Domain Specific Languages for Model Driven Engineering
In his last blog post, Johan den Haan asks one of the key questions of model driven engineering. The article is didactic and explains how ontological and linguistic metamodels can be combined (orthogonally) to simplify code generation while enabling the combination of general purpose languages and domain specific languages concepts. He uses BPEL and BPMN as a supporting example.
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Security for Services and Mashups
Security has become a rising concern in most applications and systems today. Whether you are building small mashups, enterprise applications, or a platform for SOA, there are several issues and approaches that are being discussed. Erica Naone talked about dealing with security in the world of mashups recently while Bob Rhubart and David Garrison from BEA discussed securing the services you deploy.
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Article: Spectacular Scalability with Smart Service Contracts
Udi Dahan describes an experience implementing a new order system in which large size message passing was affecting the scalability and even bringing down servers in the system. The article describes how they diagnosed the problem and their solution, by "changing our service contracts and introducing stateful interactions we were able to manage the performance critical state of the system."
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Try to get the best of your Statically Typed Language
The use of dynamic type-checking in static languages is often perceived as unavoidable on complex projects, even though workarounds necessary to enforce it tend to negatively impact the quality of code. According to Debasish Ghosh, features in static languages, i.e. Java generics, offer an opportunity to avoid runtime type checking and optimize the advantages of static typing.
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Microsoft Unity Dependency Injection Application Block Released
The Microsoft patterns & practices group has released its Dependency Injection container called Unity or the Unity Application Block. Developers can now create loosely coupled applications that are extensible using this lightweight container.
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WebSphere Updates: sMash, eXtreme Scale, Virtual Enterprise, Business Events
At IBM IMPACT this week, IBM announced a several new and re-randed upgraded products dealing with virtualization (Virtual Enterprise), clustering & caching (eXtreme Scale), complex event processing (Business Events), and RESTful web apps (sMash). InfoQ spoke to various execs and product managers to find out more.
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Article: QCon London 2008 Key Takeaways and Lessons Learned
QCon London took place March 12-14th and attendees have blogged summaries and take aways for 62 of the 96 sessions. There were 600 registrations for this second annual QCon in London, 70% of the attendees self-declaring as being team lead, architect and above. Over 100 speakers presented at QCon London including Kent Beck, Martin Fowler, and Erich Gamma.
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Book Spotlight: Essential Windows Communication Foundation
Newly published to coincide with the release of the .NET Framework 3.5, Essential Windows Communication Foundation by Steve Resnick, Richard Crane, and Chris Bowen. InfoQ communicated with the authors.
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Hypertable Lead Discusses Hadoop and Distributed Databases
Two open source projects related to Hadoop, HBase and Hypertable, provide Big Table inspired scalable database implementations. InfoQ sat down with Doug Judd, Principal Search Architect at Zvents, Inc. and Hypertable project founder, to discuss its implementation.