Have a look at the picture below. Here we have Mr Blue and Mr Red. These guys need to have a discussion but Mr Blue only speaks Blue while Mr Red only speaks Red. So what to do? Well, it's simple really. We do what we have always
You may have wondered what these layers are and what they look like. In many ways, layers are conceptual, meaning they are ways of organizing your code so that your code stays manageable. The bigger the application, the more important the manageability of the code base becomes. You never want
Your typical Enterprise Information System has at least five architectural layers. Before we discuss these layers, let's look at a real-world use case that we are all familiar with; transferring money from one account to another using your mobile device. Use Case - Summary * The User opens the
In this short post, I want to mention the two major categories of Information Systems, namely Transactional Information Systems, and Analytical Information Systems. Sometimes, the boundaries between these types can be blurred. Transactional Information System Transactional systems are all about getting data into the database by capturing the transactions of
When you withdraw cash from the ATM, you use an Information System. When you scan your groceries at the local store, you are using an Information System. When you post on Facebook, Twitter, Snapchat, or a Blog, you are using an Information System. When you buy a book from Amazon,
We all know somebody who works in IT. But not everybody knows that IT is short for Information Technology. Okay, now everybody knows! In this article, we will look at the five components that make up IT: * Data * Hardware * Software * Networking * People. Information Technology We have been keeping records for
According to Google, an ecosystem is a community of living organisms interacting with their physical environment in a specific area. As The Becoming a Programmer Series is teaching you how to build Business Information Systems, I thought it wise to create a fictitious healthcare ecosystem we can use throughout the
Welcome to Becoming a Programmer - Getting Started, the first in the Becoming a Programmer Series. With the Becoming a Programmer Series, I want to teach you how to become a programmer. That said, I want to do it properly by doing things a bit different from most of the
In this short post, I want to share with you the most important piece of advice I ever received when I started out as a programmer. It was so simple and yet packed with power! When I started programming in the late 80's, there was no Internet and
So who will benefit from The Becoming a Programmer Series? I know it sounds like a cliché, but the idea was to build the courses I would have loved to learn from when starting out. Something that guides me one step at a time, leaving no gaps in the process.
In the previous post, we discussed the problems we will face when starting out on our journey to become a programmer. We identified four questions that we need answers to: 1. Where do I start? 2. What do I learn? 3. When do I know enough? 4. Where do I
In the previous post, we saw that the answer to the question, "How do I become a programmer?" is not a simple one. And here is the reason why... To become a programmer, you need to know a lot of things about a lot of things. But before