InfoQ Homepage Architecture & Design Content on InfoQ
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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.
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Case for Defaulting to G1 Garbage Collector in Java 9
In this article, GC expert Monica Beckwith makes the case for JEP 248, the proposal to make G1 the default garbage collector in OpenJDK 9.
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A Glimpse of Latest Mobile App Development Trends
Even though mobile apps are nothing special anymore, there is still quite some movement in this area. In this article, Katie Stanfield highlights some of the trends we might encounter in the near future if we think about developing mobile applications: App developers and companies will have to keep in mind topics like Big Data and app analytics, Internet of Things or enterprise app stores.
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Innovation at Telefónica with Lean Startup
Creating digital products is different from building traditional telco products: the uncertainty is much higher, the way of creating value for the customer is totally different and lifecycle is much faster says Susana Jurado Apruzzese. Telefónica adapted Lean Startup to their processes, culture and organization to make it work.
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Projecting a Modular Future
In this article, the authors discuss modularity and projectional editing concepts used to design programming languages, using a language workbench (LWB) like Jetbrains' MPS. They discuss how they used these techniques in three different domains: embedded-software development, requirements engineering, and insurance rules.
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The Estimation Game - Techniques for Informed Guessing
In this article, author Carlos Bueno discusses the strategies for estimating the server capacity for big data projects and initiatives, with the help of two case studies.