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Mike Cohn11/17/10
2942 views
1 replies

Should Story Points Be Assigned to A Bug-Fixing Story?

When migrating a product from a traditional approach to an agile one, teams commonly bring along a large database of bugs. These are the result of an inadequate focus on continuously high quality. Shortly into their agile initiative, many teams (and their...

Michael Norton11/17/10
2501 views
1 replies

Should we always pay back Technical Debt?

Jim Highsmith on Technical DebtA former coworker of mine, Jim Highsmith, has recently written an article on The Financial Implications of Technical Debt. Jim states that recent studies indicate the cost of technical debt is near $1 trillion in the U.S. I...

Giorgio Sironi11/17/10
6412 views
0 replies

Practical PHP Testing Patterns: Back Door Manipulation

In a test implementing Back Door Manipulation, you bypass the System Under Test to reach the resource it manipulates directly, with the goal of veryfing its behavior or to perform some other handy operations. In fact, there's more than one reasons why you may...

Alex Tkachman11/16/10
11963 views
3 replies

How statically typed meta programming can look

I want to start with piece of code and challenge the reader to understand what the code means. To make the task a bit fair, I am telling you that this is the full content of the file called...

Mark Needham11/16/10
4794 views
1 replies

Retrospectives: My First Time Facilitating

Despite being part of numerous retrospectives over the past few years I don't remember actually facilitating one until my current team's last week. I've gradually come to appreciate the skill involved in facilitating this type of meeting having originally...

Dan Pritchett11/15/10
2092 views
0 replies

Consistency vs. Innovation

I've been pondering the problem of how does an organization achieve innovation and at the same time have some level of consistency in the patterns and components that are in use across teams. Considering the very nature of innovation is to solve existing...

Mark Needham11/15/10
1485 views
1 replies

Agile: Increasing team sizes

A fairly common trend on nearly every project I've worked on is that at some stage the client will ask for more people to be added to the team in order to 'improve' the velocity. Some of the most common arguments against doing so are that it will initially...

Giorgio Sironi11/15/10
4276 views
0 replies

Practical PHP Testing Patterns: Shared Fixture

The Shared Fixture pattern is the last of the Fixture organization patterns treated in this series. A Shared Fixture is the opposite and specular case of a Fresh Fixture: it is not recreated for each test, but all the test methods reuse the same object graph...

Matt Stine11/12/10
6135 views
1 replies

Failed Metric, Failed Build?

A very interesting discussion came up this past weekend during the "Project Automation" Birds of a Feather (BOF) session at the No Fluff Just Stuff show in Reston, VA.

Israel Gat11/12/10
3507 views
0 replies

Beyond Devops

Based on feedback from participants in my Agile 2010 workshop “How We Do Things Around Here In Order To Succeed,” I am planning to offer the workshop as a one-day seminar. A tentative agenda for the seminar is as follows:

Robert Diana11/12/10
4587 views
2 replies

Rite of Passage or Useless Time Suck?

How do you welcome new employees? Normally, it is a rite of passage that all new developers must search some documentation and struggle with setting up their development environment. Let me state for the record that I absolutely hate this concept. I...

Israel Gat11/11/10
4518 views
0 replies

The Devops Triangle

The Agile Triangles was introduced by Jim Highsmith as an antidote to the Iron Triangle. Instead of balancing development between cost, schedule and scope, the Agile Triangle strives to strike a balance between value, quality and constraints:

Mark Needham11/11/10
1130 views
1 replies

Distributed Agile: Communicating big design decisions

Although we mostly split the work on my project so that there aren't too many dependencies between the teams in Chicago and Pune, there have still been some times when we've designed major parts of the code base in Pune and have needed to communicate that...

Giorgio Sironi11/11/10
21475 views
8 replies

It's just like putting LEGO bricks together... Or not?

I once heard a speaker saying that Lego bricks are one of the most abused metaphor in computer science. I like this quote very much, but I also like the Lego metaphor as it is very effective in explaining patterns like Dependency Injection even to higher...