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Neo4j: NOSQL and the Benefits of Graph Databases

Posted by Emil Eifrem  on  Jul 14, 2010 5

Emil Eifrem overviews the trends leading to NOSQL (Not Only SQL), and the four emerging NOSQL solutions: key-value stores, plus column, document and graph databases. He also explains the internals of a graph database and an example of using Neo4j - a graph database - in production.

Sky.com: Behind Britain’s Entertainment Infrastructure

Posted by Glenn Saqui and Jon Mullen  on  Jul 13, 2010

Glenn Saqui and Jon Mullen present the details of the development environment and the process they are using at Sky.com: selecting team members, work area, dealing with continuous integration, tools, how they pair, weekly and daily process, story cards and how they are used, and the production environment.

The DCI Architecture: Lean and Agile at the Code Level

Posted by James Coplien  on  Jun 30, 2010 3

James Coplien explains the DCI (Data, Context, Interaction) paradigm used to better represent the user’s mental model in code through system state and behavior. Coplien makes an attempt to reintroduce architecture to Lean and Agile projects due to its value in sustaining high velocity and change resiliency.

Social Networks: Getting Distributed Web Services Done with NoSQL

Posted by Lars George and Fabrizio Schmidt  on  Jun 29, 2010

Lars George and Fabrizio Schmidt present Germany’s largest social networks, Schuelervz, Studivz and Meinvz, the problems they are facing daily, the architecture used in the past and the need to move to a NoSQL solution. The presentation concludes with lessons learned and plans for the future.

Data Presentation in a Web-App: Journey of a Start-up

Posted by Simon Oxley  on  Jun 29, 2010 1

Simon Oxley presents how his team built a monitoring and reporting web application, what were the challenges encountered and the decision made upfront, what were the technologies and tools used, and what are the their plans for the future.

Devs Are From Mars. SETs Are Too.

Posted by Simon Stewart  on  Jun 28, 2010

Simon Stewart presents the activity of Google’s Engineering Productivity team and the role Software Engineers in Test (SETs) play in helping software developers to make their code more maintainable, recommending some of their tools: Gold linker, Eclipse, distcc, JDepend, graphviz.

Embracing Concurrency At Scale

Posted by Justin Sheehy  on  Jun 23, 2010

Justin Sheehy explains why a paradigm shift is necessary when dealing with large concurrent distributed systems and what are some of their requirements: no global state is shared, ACID no longer works but rather BASE and CAP, getting rid of RPC and using protocols over APIs instead, prepare for failure, degradation, understanding the harvest-yield balance, and using measurement.

Save the Day with Noda Time

Posted by Jon Skeet  on  Jun 16, 2010

Jon Skeet presents Noda Time, a .NET port of Joda Time which is a Java library for handling date and time. Skeet discusses the troubles handling date and time with the standard .NET API, and how Noda Time simplifies and solves those issues.

The Present and Future of Web App Design

Posted by Torrey Rice  on  Jun 16, 2010 4

Torrey Rice presents some of the relevant milestones in the evolution of the web from a UX perspective, starting with one of the first game consoles, the appearance of email and HTML to the latest developments in mobile computing, then trying to foresee the future of web development and what it will mean for developers and casual people.

Project Voldemort at Gilt Groupe: When Failure Isn't an Option

Posted by Geir Magnusson  on  Jun 15, 2010

Geir Magnusson explains how Gilt Groupe is using Project Voldemort to scale out their e-commerce transactional system. The initial SQL solution had to be replaced because it could not handle the transactional spikes the site is experiencing daily due to its particular way of selling their inventory: each day at noon. Magnusson explains why they chose Voldemort and talks about the architecture.

Silos Are for Farmers: Production Deployments Using All Your Team

Posted by Julian Simpson  on  Jun 14, 2010 1

Julian Simpson recommends practices to bring together development and operations, like: collaboration, don’t use email for internal communication, respect everyone, have lunch with the other team, discuss problems, joined retrospectives and stand-up meetings, co-locate sysadmins and developers, teach sysadmin to use VC, use CI and continues deployment, separate binaries and configuration files.

Mobile JavaScript Development

Posted by Nikolai Onken  on  Jun 09, 2010

Nikolai Onken makes a case for HTML, JavaScript and CSS developing for mobile devices by presenting the status of mobile cross-device development, opportunities it brings and future prospects. He also presents Dojo, an open source JavaScript toolkit to build web applications.

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