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Clojure and Rails - the Secret Sauce Behind FlightCaster

FlightCaster, a realtime flight delay site, is built on Clojure and Hadoop for the statistical analysis. The web frontend is built with Ruby on Rails and hosted on Heroku. We talked to Bradford Cross about Clojure, functional programming and tips for OOP developers interested in making the jump.

Werner Schuster
on Aug 20, 2009
RESTful HTTP in practice

Gregor Roth overviews the basics of RESTful HTTP and discusses typical issues that developers face when they design RESTful HTTP applications, showing how to apply the REST architecture style in practice. Gregor describes commonly used approaches to name URIs, discusses how to interact with resources through the Uniform interface, when to use PUT or POST and how to support non-CRUD operations.

Gregor Roth
on Aug 18, 2009
WebSphere vs. .NET: IBM and Microsoft Go Head to Head

After carrying out a number of benchmarks, Microsoft concluded that .NET offers better performance and cost-performance ratio than WebSphere. IBM rebutted Microsoft’s findings and carried out other tests proving that WebSphere is superior to .NET. Microsoft responded by rejecting some of IBM’s claims as false and repeating the tests on different hardware with different results.

Abel Avram
on Aug 17, 2009
Super-sized Flex Development—Without the Extra Calories

Ryan Knight discusses how Adobe Flash Builder 4 beta provides tools for developing large-scale Flex applications, increasing developer productivity and workflow between designer and developer. He talks about how to leverage Flex's differences, details of some Flex modules, patterns and anti-patterns, and the Spring BlazeDS Integration Project.

Ryan Knight
on Aug 13, 2009
Layered Architecture for Test Automation

In test automation, code involved in testing is not only test logic, but also a bunch of other supporting code, like URL concatenation, XML parsing, UI, etc. Test logic can be buried in this unrelated code, which has nothing to do with test logic itself, making test code hard to read and maintain. In this article, the layered architecture of test automation is presented to solve this problem.

Bei Li
on Aug 11, 2009
Virtual Panel on Software Architecture Documentation

Software architecture documentation is an important part of the enterprise application development process. In this virtual panel discussion, InfoQ spoke with panelists Len Bass, Grady Booch, Paulo Merson and Eoin Woods about documenting the software architectures especially in Agile software development environments.

Srini Penchikala
on Aug 10, 2009
Expression as a Compiler

The ability to dynamically generate code can greatly increase the expressiveness of developers. Repetitive code can be eliminated and complex decisions be pushed back to configuration files that can be changed by business analysts. In the past .NET developers built dynamic code using Reflection.Emit or CodeDom, but with LINQ Expressions a lightweight alternative has become available.

Marc Gravell
on Aug 10, 2009
Supporting Advanced User Interaction Patterns in jBPM

Boris Lublinsky discusses task management in the jBPM and then demonstrates how to implement four advanced user interaction patterns(4-eyes principle, nomination, escalation, and chained execution) using JBoss and the jBPM. He also notes the advantages and limitations of these patterns.

Boris Lublinsky
on Aug 06, 2009
Service Dynamics: the lazy man's way

This article describes "the hardest topic in OSGi, how to deal with service dynamics," based on personal experience. Two factors, concurrency and direct service references, make the problem "fiendishly hard." An import and an export policy should form a comprehensive doctrine for dealing with service dynamics and the article explores two export policies with their corresponding doctrines.

Todor Boev
on Jul 29, 2009
Book Excerpt and Interview: Open Source SOA

Boris Lublinsky interviews Jeff Davis as part of a review of Davis' new book, Open Source SOA. The book covers the selection and usage of the open source products for SOA implementation. The interview poses questions about SOA as "business problem" or technical distributed system; SOAP vs. REST; WSDL, and "adherence to standards" as an evaluation criteria, among other topics.

Boris Lublinsky
on Jul 23, 2009
FlexMonkey brings unit testing to Flex user interface developers

This article explores how Gorilla Logic's new, open source Flex user interface automation testing tool, FlexMonkey, can enhance the productivity of both developers and QA testers. FlexMonkey allows developers to incorporate user interface testing into unit test suites and continuous integration environments, and allows QA testers to expand those tests into comprehensive quality tests.

Stuart Stern
on Jul 15, 2009
Project Metrics for Software Development

Software project success has always been the goal of the industry; however the metrics that helps us measure the success have been as diverse as they could be. Depending on the particular methodology that you follow the set of suggested metrics will not have anything in common. Carlos provides a set of metrics that he and his teams were able to use independent of software methodology.

Carlos Sirias
on Jul 14, 2009

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