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Ian Thomas at Agile Yorkshire

YAGNI – You Aren’t Going To Need It

The easiest way to save money and time building software products is to only build things that are absolutely essential. More features and frameworks means more code to write, more code to test and more code to go wrong. The… Read More

agile, agile development, agile yorkshire, dog, lean, prioritisation, product development, product roadmap, programming, software architecture, software development, web development

Developing HTML Forms

Developing useful and professional HTML forms requires a lot more work than simple examples might suggest. There are a whole range of problems such as handling initial data, client-side validation, server-side validation, optimistic concurrency and performing the final action. This… Read More

design, dog, HTML, HTTP, product development, programming, software development, user experience, UX, web development
Oliver Shaw at Agile Yorkshire

TDD or Test Driven Development Explained

TDD or Test Driven Development is something that’s easy to talk about but harder to do and a lot harder to do well and get value from. Done with good judgement TDD can help produce excellent quality code that is… Read More

agile, agile development, agile yorkshire, lean, product development, software development, software testing, TDD, web development

Quick and Dirty Swap File (Linux)

Need a swap file on a Virtual Machine that didn’t come with one? Don’t care about the size, name or location? This is for you… I use lots of tiny virtual servers for development and testing and on most hosting… Read More

DevOps, linux, software development, sys admin, system administration

Shrink QEMU/QCOW2 Images

Needed to shrink a full directory of QEMU QCOW2 images today that had grown over time with snapshots and general use. While there is information around on the web about it, the focus is on single images and the code… Read More

DevOps, linux, operating systems, software development, sys admin, system administration, virtual machine, VM

An Overview of Hexangonal Architectures with Ian Cooper

Hexagonal architecture or ports and adaptors as it is sometimes called, is a design pattern applied to software applications that attempts to separate core functionality and business rules, often called the domain model, from the interfaces used to interact with… Read More

agile yorkshire, design patterns, ports and adapters, software architecture, systems architecture, systems design, test driven architecture, test driven design

Building a Test Email Server

This post explains how to set up an email server on GNU/Linux that can be used for testing applications. It allows you to test that emails are correctly addressed (except for BCC) and allows you to receive the emails and… Read More

email, programming, software development, software testing, testing, web development

Recent Documents First in Apache Lucene

Having spent a long time looking for how to put the latest documents first in Apache Lucene to no avail. Finally, I’ve found a solution that works. Most of the answers on the web suggested using a boost on documents… Read More

Apache, open source, OSS, programming, software, software architecture, software development

Knockout JS Validation using an AJAX Callback Result

I was looking for an easy way to implement a validation based on the result of an AJAX request without making it synchronous. I noticed that Knockout JS Validation wraps it’s calls to validation functions in a computed observable. This… Read More

programming, software, software development, web development

NGINX and Mono Concurrency

I stumbled upon a question about fastcgi-mono-server concurrency on Server Fault and thought I’d do some digging around. Initial checks using a couple of open tabs in the browser and Firebug seemed like there was some level of blocking, and… Read More

programming, software, software development, sys admin, system administration, web development

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