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Andrew Fuqua09/09/14
8095 views
1 replies

Don't Estimate Stories In Sprint Planning

I don’t estimate stories in sprint planning. Nor do I re-estimate stories in sprint planning. I estimate stories in a separate estimating meeting and usually at least a couple sprints in advance, if not more. There are a few reasons why (re)estimating during sprint planning is a dangerous practice:

Allan Kelly09/09/14
6490 views
3 replies

Agile outside of software

While not every Agile practice can be taken out of software development and used someplace else the roots of Agile mean that the principles, values and ideas which Agile is built on can be. In your domain Agile as now known might work quite well, but in someone else’s domain there may be more need to think deeper.

Mike Bushong09/09/14
5411 views
2 replies

On building teams: experience or talent?

Obviously when you hire, you want to find a good mix of experience and talent. But a perfectly balanced straddle between the two is impossible. So when forced to choose between them, which do you choose: experience or talent?

Chris Odell09/09/14
5073 views
0 replies

SOHO Agile: Is agile relevant to the SOHO developer?

Agile is often seen as a team process, and certainly agile lends itself to team activities. So can you apply agile to the Sole Home Office developer?

Mateusz Haligowski09/08/14
33966 views
16 replies

Programmer, know thy tools!

On the importance on non-programming skills in the job of a programmer.

Lucas Saldanha09/05/14
7020 views
4 replies

Pitfalls of Agile Software Development

In this post I discuss three pitfalls of agile software development faced by developers when trying to make changes in the development process at "non-agile" companies.

Pierre-yves Saumont09/05/14
9561 views
4 replies

Do it in Java 8: recursive and corecursive Fibonacci

Calculating the Fibonacci suite is one of the ubiquitous examples we can find on the Internet. Java 8 offers us new possibility to solve this problem using recursion or corecursion.

Maarten Ectors09/05/14
4558 views
0 replies

Instant Big Data Stream Processing = Instant Storm

Every 6 months at Canonical, the company behind Ubuntu, I work on something technical to test our tools first hand and to show others new ideas. This time around I created an Instant Big Data solution, more concretely “Instant Storm”.

Paul Underwood09/04/14
3615 views
0 replies

Getting Started With Composer In PHP

In this tutorial we are going to learn about composer and how we can use it to develop our PHP applications.

Michael Mccandless09/04/14
4186 views
0 replies

Scoring tennis using finite-state automata

For some reason, the scoring system for tennis is very strange. Fortunately, the convoluted logic is easy to express as a finite-state automaton (FSA). If you build this Automaton in Lucene and minimize it, you'll discover that there are some wasted states! This means 20 states is overkill when deciding who won the game.

Mark Needham09/04/14
6583 views
0 replies

R: dplyr - group_by dynamic or programmatic field

In my last blog post I showed how to group timestamp based data by week, month and quarter. I wanted to pull this code out into a function. It turns out if we want to do this then we actually want the regroup function rather than group_by:

Trevor Parsons09/04/14
4117 views
0 replies

What is Syslog?

Syslog has been around for a number of decades and provides a protocol used for transporting event messages between computer systems and software applications. The protocol utilizes a layered architecture, which allows the use of any number of transport protocols for transmission of syslog messages.

Mark Needham09/04/14
3302 views
0 replies

R: ggplot - Cumulative frequency graphs

The first step was to transform the data so that I had a data frame where a row represented a day where a member joined the group. To turn that into a chart we can plug it into ggplot and use the cumsum function to generate a line showing the cumulative total:

Alec Noller09/03/14
9222 views
0 replies

Dev of the Week: Hébert Coelho de Oliveira

Every week here and in our newsletter, we feature a new developer/blogger from the DZone community to catch up and find out what he or she is working on now and what's coming next. This week we're talking to Hebert Coelho De Oliveira, Senior Developer at M4U.

Gil Zilberfeld09/03/14
7443 views
1 replies

Metrics: Good vs. Evil

In our ever going search for simplicity, metrics help us minimize a whole uncertain world into a number. We like that. But metrics are over-simplification. We should use them like that.