Couchbase is expected to replace its Database engine with a homegrown engine based on B+-Trees called ForestDB. The replacement is expected to result in significant performance gains and better transactional support.
Twitter’s engineering group, known for various contributions to open source from streaming MapReduce to front-end framework Bootstrap recently announced open sourcing an algorithm that can efficiently recommend content. LinkedIn also open sourced a Machine Learning library of its own, ml-ease. In this article we present the algorithms and what they mean for the open source community.
Facebook has been working in the last two years to evolve the architecture of its iOS app with the goal of improving performance, abstractions, and the underlying development model. Adam Ernst and Arl Grant, software engineers at Facebook, explained what issues they had to solve and how they did in a @Scale 2014 talk.
Realm is an open-source, object oriented, mobile database. Last month, Realm for Android was released, less than 3 months after the iOS version was first available and it comes with a fluent, strongly typed API.
Complexity is a direct indicator of software quality and costs: if the complexity for any code is high, the quality of that code will be lower and it will cost more to manage it. Complexity measurements can be used to estimate development and test activities and to decide where refactoring is needed to improve quality and prevent problems.
For developers who have experienced the problems with creating and managing multithreaded applications and are looking for a higher level of abstraction, Arun Manivannan has written a series of, so far, six blog posts explaining the principles of Actor model using an picture-rich visualization and some simple Akka examples.
Amazon has added corporate directory services called AWS Directory Service to its growing portfolio of cloud services. Applications that need Active Directory or a LDAP compatible directory can use this service.
Devices are becoming increasingly interconnected through the internet where they are communicating directly with each other. Testing such machine to machine (M2M) systems can be difficult due to their complexity and the usage of different platforms, as Peter Varhol explained in his talk about testing in the M2M world at the QA&Test 2014 conference.
By using Model Driven Development component tests could be skipped and integration and system testing went a lot smoother, said Bryan Bakker in the presentation Model Driven Development (MDD) and its impact on testing. Main results from the MDD approach are a reduction of the amount of testing and increased reliability of the code that was generated from a mathematical model.
Apiary, the company behind API Blueprints has announced a new offering, Apiary for Enterprise, that promotes API design best practices through tooling that validates API designs against defined API style guide standards and best practices. InfoQ caught up with Apiary to shed more light on this new offering.
WebStorm 9, JetBrains’ IntelliJ IDEA-based IDE, comes with a number of new features and enhancements, including support for Meteor, React, Polymer, PhoneGap, Ionic, and others.
Testability must be explicitly designed in the system said Peter Zimmerer from Siemens AG. Test architects should drive testability and collaborate with architects, designers and testers in using good design and engineering practices. At the QA&Test 2014 conference Peter gave a tutorial about design for testability for embedded software systems.
Visual Studio "14" is improving the web development experience through a series of changes throughout the package. These changes should benefit developers across a variety of tasks: JSON editing, HTML editing and the use of templating packages, and managing code in the editor.
W3C published a new version of the HTML5 Differences from HTML4 working draft. The latest version describes the differences of W3C HTML5 and HTML4, and a comparison between WHATWG HTML and HTML4 is no longer covered.
Google has announced version 1.3.0 of AngularJS, code named "superluminal-nudge". The release brings substantial performance improvements that reduce memory consumption, increase the speed of common DOM operations, and improve overall latency of Angular app.