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Most people in the software industry know what a project manager is, but not so many know what a product manager is, and yet this is one of the most critical figure when building a successul software. These two roles are not equivalent at all and require completely different skills. Let’s review them. A project manager main responsability is to […]

A good metaphor of application design is to think about each piece of your software like a physical tool. You may have just one tool for the current job, or a set of very few tools, in which case it makes sense to keep them all in the same box. But as you add more tools, it becomes more and […]

Just finished reading the book Refactoring JavaScript by Evan Burchard and I am extremely happy about it.

Authentication and authorizazion Many applications need an authorization system that allows different users to do different things. There are many ways to implement such system; in this post we’ll describe our preferred strategy. Let’s start by distinguishing authentication and authorization. Authentication is the part that identify users, e.g. checks username and password to make sure the user is valid. Authorization […]

A while ago we wrote about iterative coding, which is a way to develop your project in short cycles, each one producing a working and usable artifact. This approach can be used in a fractal fashion and applied each time you develop a new feature on an existing and working project. First thing we do, we identify all supporting changes: […]

Sooner or later you’ll get a request to create an import/export system between your application and one or more other applications. This is good: applications that are able to easily interact with the outside world will stand out and have more chance to be successful in the long run. So, you should happily grab the opportunity to make your application […]

There is a sad story I will tell you now, a story which – I guess – most developers have been through at some point in their career. A sad story We are in the middle of developing a project. There was a time, some months ago, when the deadline looked so far away that we coded happily and without […]

What is iterative coding? In the context of coding, an iteration is a development phase that produces a working artifact. In other words, at the end of each iteration we have a working piece of software, which can be used and tested, even if it has not all project features yet. The whole point of it is, customers should be […]

You may have heard of DDD and, yet again, you may not have. Let us give you a short introduction so that we all know what it is and future articles may build on this knowledge. DDD (Domain-Driven Design) is a different way of thinking about your software; in fact it is probably the right way to think about it. […]