Invisible to the eye

In programming, assertions are statements that should always evaluate to true , being invariant assumptions in respect to the input data of ...

Saturday is becoming the 'questions day of week', since it is not the first time that after a week of work some readers email me t...

When we talk about degradability, usually the discussion is about javascript widgets. Degradability is the property of a web application to...

Agile Estimating and Planning by Mike Cohn is a masterpiece on Agile management techniques, especially in dealing with schedules and appl...

This is the temporary cover of my upcoming ebook, Practical Php Testing . It is a parody of the famous illustration from the book The Litt...

I have been inspired by a post by Soon Hui to write about my mistakes. I have evolved much on the programming side during these years, but ...

As a developer I have made an habit of using the keyboard for the majority of tasks. Vim for example is my favorite text editor, which does...