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Jim Bird06/28/11
8218 views
1 replies

Still getting my head around Continuous Deployment

The arguments in support of Continuous DeploymentIn a webinar on CD, Kent Beck explored a fundamental mismatch between rapid cycling in design and construction, and then getting stuck when we are ready to deploy. He argues that that queuing theory and...

Giorgio Sironi06/27/11
5180 views
0 replies

Practical PHP Refactoring: Introduce Explaining Variable

The scenario of today: you have a complex expressions, longer than 80-100 characters and hard to understand. Here we can apply the classic maxim divide et impera: break down the logic in smaller, digestible chunks.This time we don't extract a method (at least...

Mark Needham06/27/11
1066 views
0 replies

Bounded Rationality

In ‘Thinking In Systems: A Primer‘ one of the most interesting ideas that Donella Meadows describes is what Herbert Simon coined ‘bounded rationality‘: Bounded rationality means that people make quite reasonable decisions based on the...

Caleb Jenkins06/27/11
1562 views
0 replies

UX + Agile

Jared Spool published a great article yesterday titled “Essential UX Layers for Agile and Lean Design Teams”. Jared talks briefly about proliferation of agile approaches in software design and user experience (UX) design and contrasts that to the Big...

Bob Hartman06/27/11
1947 views
0 replies

Agile antipattern: Target fixation

Have you ever been so focused on something that the rest of the world seemed to disappear for a while?  This can be great under certain circumstances, but in other cases it can be extremely harmful.  When someone focuses on a target and doesn’t...

Jim Moscater06/27/11
16958 views
0 replies

Daily Dose: KDE SC 4.7 Release Candidate Now Available

The first release candidate for version 4.7 of the KDE Software Complilation has been announced, which is a development version of the next major release of the Unix and Linux desktop manager. The new version will feature support for OpenGL-ES 2.0, and...

Israel Gat06/27/11
4141 views
0 replies

Between Agile and ITIL

You do not need to be an expert in Value Stream Mapping to appreciate the power of speeding up deployment to match the pace of Agile development. By aligning development with deployment, you streamline “production” with “consumption.” The...

Evgeny Goldin06/25/11
8978 views
4 replies

TDD for unbelievers

I have to admit, I was not-so-good with TDD (Test-driven development). I just didn’t see how it can help me to deliver a better software. Products and solutions I developed were pretty much rock solid and it felt good to see them running for years....

Ashod Nakashian06/25/11
785 views
1 replies

Learning to Communicate Better

We live in a time where communication is evermore effortless and taken for granted. So much so, that the audience is impatient to get to the point and the authors need say more in less. I learned this the hard way. My most recent article, which...

Jim Bird06/25/11
3103 views
3 replies

Scrum, XP and what about Self-Organizing teams?

A foundational principle of Scrum (and other Agile methods) is that we get better results from self-organizing teams. The Agile Manifesto says“The best architectures, requirements, and designs emerge from self-organizing teams”so it must be true.A lot...

Jim Bird06/24/11
21584 views
1 replies

What I like (and don't like) about DevOps

I’ve spent a lot of time in my career working on problems that cross the lines between development and operations. That’s why I am interested in the emerging DevOps community: a bunch of smart people who are trying to bring development and...

Dele Sikuade06/24/11
2105 views
0 replies

How To Increase Project Profitability

The plain truth is that most of us exchange our time and labor for money. Keeping visibility of this exchange is especially important for those of us who do project work – charge the client X in return for delivering Y. Welcome to the world of...

Martin Fowler06/24/11
6135 views
4 replies

Flag Argument

A flag argument is a kind of function argument that tells the function to carry out a different operation depending on its value. Let's imagine we want to make booking for a concert. There are two ways to do this: regular and premium . To use a...

kent tong06/24/11
8634 views
16 replies

TDD adapted for mere mortals

I’ve been teaching and practicing agile for several years and there is definitely a problem with TDD: People find it very difficult to use. I believe there are certain points, either in the TDD itself or in people’s interpretation of it, that...

Daan van Etten06/24/11
1963 views
0 replies

3 Risks With Agile Decision Making

Agile teams are generally cohesive and are empowered and expected to make day-to-day decisions. A large part of empowerment in Agile methods is that the team makes the decisions, not the project manager. However, there are some risks involved with...

Jim Bird06/24/11
1211 views
1 replies

Continuous Deployment is no Holy Grail

In Prerequisites for Continuous Deployment Dan Ackerson asked “What are your major obstacles to deploying continuously to your live servers”?This must have been a rhetorical question, since my response is “awaiting moderation”. Why ask a question...

James Shore06/24/11
944 views
0 replies

Let's Play TDD #117: setIcon()

The source code for this episode is available here. Visit the Let's Play archive for more episodes! Many thanks to Danny Jones for figuring out the HD Youtube embed code.

Gareth Baker06/24/11
2885 views
0 replies

Devops At Barcamp Cambridge

Last year while I was in barcamp cambridge, decided to do a short talk on devops. It’s still a term that not too many people have come across and something that lots of people building websites should think about. Devops View more presentations from...

Sean Mchugh06/23/11
2886 views
1 replies

Implementing Scrum: Top Down and Bottom Up Approach Part 2

We've already discussed implementing Scrum from a top down approach and came to an interesting conclusion. Establishing trust between the Scrum Master and the Team is key in a top down implementation. So what about implementing Scrum from the bottom...

Allan Kelly06/23/11
3051 views
1 replies

When did Scrum start loving project managers?

One of the things I’ve always found paradoxical about Scrum (specifically ScrumTM) is its position on management. On the one hand, Scrum is very management friendly - see my Scrum has Three Advantages over XP post. Basically Scrum has done a very good job...

Jurgen Appelo06/23/11
920 views
1 replies

Dance with the System

An organization is a complex adaptive system. It will adapt to what you do, so you must adapt continuously to how the system responds. This is reflected in the words inspect and adapt, used frequently in Agile literature. But… adaptation is not...

Matthias Marschall06/23/11
5158 views
0 replies

Getting Started With The Opscode Chef Platform – Configuration Management In The Cloud

In “The Moving Parts of Opscode Chef” there was an interesting discussion about the need of a highly available chef server if you want to use opscode chef as your configuration management tool of choice. Especially for small to medium sized...

Giorgio Sironi06/23/11
8617 views
5 replies

I don't know how to test this

There is a maxim said by Misko Hevery which I share (and probably misquote) here:The only acceptable excuse for lack of tests is that you don't know how to test: testing is an ability that has to be learnt.Thus testing ability is just like being able to use...

Roman Pichler06/22/11
3154 views
1 replies

User Story Modelling

User stories are great at capturing product functionality from the perspective of a user or customer: Each user story describes a piece of product functionality, for instance, “As an application provider, I want to register with the application centre...