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Tuesday, January 22, 2013

Effort Estimation in Agile Software Development - Applying the Pert Weighted Average formula - Part 2

Back in May 2010, I posted an article entitled Effort Estimation in Agile Software Development - Applying the Pert Weighted Average formula, which has been one of the most popular articles on this blog.

Amongst the feedback received there were many requests asking me to provide more details on how to devise the numbers to apply on the formula. This article expands on the topic by explaining my way of coming up with the numbers for the optimistic, pessimistic and realistic components of the Pert Weighted Average formula.

As explained here, the I use the following formula to estimate the duration to develop each user story that make up an iteration: (Optimistic + (4 * Realistic) + Pessimistic) / 6 .

How to apply the formula


Tuesday, January 15, 2013

What makes a good software developer?


Today at work I started to do some performance reviews. As I prepared the review papers  I started thinking about what makes me rate one developer higher than another.


So the question really is, what makes a good software developer? There are certainly many answers to this question and viewpoints will vary greatly. I don't think there is a definitive answer as the definition of "good" will change depending o what you are trying to achieve.

The following sections provide a high level summary of my thoughts on this very interesting topic.

Technical Skills

Technical skills are definitely very important, however I think that it is overrated. Attitude is far more important than technical skills. More on that later.

Possessing well developed technical skills enables developers to complete their tasks faster and therefore it has the potential to make them more efficient. In the past 2 or 3 years I have introduced new technologies in my current organization. Those projects didn't come without challenges, there were some rough days and times of low productivity. The developers with more advanced technical skills were able to understand those technologies and become more productive faster than the others. The real good developers became mentors to the other ones, without making them feel bad.