InfoQ Homepage Architecture & Design Content on InfoQ
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Real-time Data Processing in AWS Cloud
In this article, author Oleksii Tymchenko discusses a bio-informatic software as a service (SaaS) product called Chorus, which was built as a public data warehousing and analytical platform for mass spectrometry data. Other features of the product include real-time visualization of raw mass-spec data.
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Next Generation Session Management with Spring Session
Spring Session makes it easy to write horizontally scalable cloud applications, offload session state into specialized external session stores, and take advantage of current technologies such as WebSockets. This article takes a deep dive into using Spring Session to maximize these benefits, avoiding the limitations of traditional session management employed by enterprise Java
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How Did You Start Coding?
In this article we publish the results of two surveys on how and when the respondents started programming, followed by the stories of several InfoQ editors telling how they started coding and their professional life journey.
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Context is King: What's your Software's Operating Range?
Francisco Torres shares from experience how users might change how one sees the context of a project and why it is important to define a software’s operating range: the set of quality properties in which a software system can successfully run.
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The Mathematics of Adaptive Security
Enterprise security teams are charged with maintaining the “perfect” set of security policies. In their pursuit of the perfect security policy, they are often the department of slow (because the pursuit of perfection takes time). At the same time, “to err is human…”
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UED: The Unified Execution Diagram
Today’s software applications have a lot of concurrent tasks that are distributed over multiple threads, processes, processors and PCs. This article introduces a visual modeling technique to describe and specify the application’s execution architecture. Within Philips Healthcare the Unified Execution Diagram has proven to be very useful for designing and documenting the execution architecture.
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Toward Agile Architecture: Insights from 15 Years of ATAM Data
The authors have concluded after analyzing 15 years of Architecture Trade-Off Analysis Method (ATAM) data across 31 projects that modifiability, performance, availability, interoperability, and deployability are key quality attributes for Agile practitioners.
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Big Memory .NET Part 2 - Pile, Our Big Memory Solution for .NET
In part one, Leonid Ganeline introduced the concept of big memory and discussed why it is so hard to deal with in a .NET environment. In part two, Dmitriy Khmaladze describes their solution NFX Pile; a hybrid memory manager written in C# with 100% managed code.
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Big Data Solutions with MS SQL ColumnStore Index
Columnar data storage can offer significant performance improvements over the way database tables are traditionally stored, but they aren’t always faster. Aleksandr Shavlyuga explores the power, and limitations of SQL Server’s ColumnStore Indexes.
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What’s New in iOS 9: Xcode 7 and Other Developer Tools
In the first four installments of this series, we reviewed new and enhanced frameworks included with iOS 9 SD, changes to Swift and Objective-C, and the new Safari content blocking API. In this article, we will describe what is new within Apple Developer Tools, including Xcode Playgrounds, LLDB, UI testing, Interface Builder, etc.
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Big Memory .NET Part 1 – The Challenges in Handling 1 Billion Resident Business Objects
This article describes the concept of Big Memory and concentrates on its applicability to managed execution models like the one used in Microsoft’s Common Language Runtime (CLR). A few different approaches are suggested to resolve GC pausing issues that arise when a managed process starts to store over a few million objects.
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Reactive Messaging Patterns with the Actor Model Book Review and Q&A with Vaughn Vernon
Vaughn Vernon in his new book Reactive Messaging Patterns with the Actor Model shows how this model can simplify enterprise software development. After an introduction to the basics of the actor model and tutorials on Scala and Akka the rest of the book is a patterns catalogue describing most of the patterns in the book Enterprise Integration Patterns from an actor model perspective.