10 Mistakes to Avoid When Outsourcing Software Development
It’s true that every business process takes time to learn, execute, and grasp—but they are essential steps, nonetheless, and thus should be meticulously done to keep the company going. However, it’s also true that all businesses aim to be the best in their industry and to achieve that, they need to focus more time and effort in the activities in which they intend to be experts. When you become…
How to set up a Node.js development environment
Context: Here at IntelligentBee we wanted to establish a few ground rules that all of our developers should follow when developing an app in Node.js. In that way all of us would be familiar with a particular set of tools, something that would make us deliver better software, fast. Here is how we set up a Node.js development environment for a particular project: Installing NPM and Node.js To get…
How to save a file in Vim after forgetting to use sudo
Many of you probably experienced this. You edit a file in Linux with Vim or Nano or whatever else text editor you might be using and when you try to save, you realise you forgot to launch the editor with sudo privileges, and file can't be written. Exiting without saving and editing again with sudo privileges is not always an option, especially if you lose a lot of work. Solutions There are some…
Why Should Your Online Business Offer API
There are several ways to extend a business model but API is a hot topic right now as the online world is expanding very fast. If you’re a developer or at least interacted with APIs before, you probably know why public APIs are so important, but there’s a big chance you didn’t hear or care about them before and now you’re wondering why everyone talks about them. What is an API In computer…
Start writing tests in Ruby: useful gems
Being a QA engineer is a continuous struggle in finding the right resources in order to get the job done easier and more efficiently. If you are planning to write automated tests in RSpec (Ruby's testing framework), then you should take a look over these gems. Please notice that I am most of the time automating backend tests only, so the libraries I am using are for this purpose mainly. 1.…
Building a Face Detection Web API in Node.js
Introduction As a follow-up to my previous article on how to use your webcam for face detection with OpenCV, I’d like to show you how you can create your own web API for that. There are a few Node.js modules out there that do just that. A few of them even provide bindings for OpenCV so you can use it directly from Javascript. The catch is that most of these modules either rely directly on…
How To Mock Endpoints in Automated Acceptance Tests
The purpose of acceptance testing is to reproduce production environment as much as possible in order to evaluate the software in a 'real-world' situation similar to what the customers will experience and this includes using real endpoints. But using real endpoints has some disadvantages. In automated acceptance tests, the endpoint will be stressed out and this is not performance testing. Also,…
What Is the Difference between QA and QC/Software Testing
If you work in IT or, at least, had any experience in this area, you definitely know that there are multiple terms to define the testing world. The biggest competitors here are QA (Quality Assurance) and QC (Quality Control) which is basically the same as Software Testing. Let's see how these are defined: Quality Assurance (QA) is a part of quality management focused on providing confidence that…
Usability Rules and Principles for Websites
We all now that nowadays there are some well known standards when creating a new web application: it must support a big number of users, no errors on loading, it must be responsive and clear. Beside those, every website must have a user-centered design and to have that, here are some rules and principles for usability. 1. 7+-2 Principle – there must be 7+-2 elements in a navigation bar 2.…
How to Build an Android Login Screen
Many applications require users to login in order to access all the available features. In this tutorial we will secure an Android activity by requiring users to enter their username and password. We will start by creating a new blank activity with fragment, LoginActivity. We will use the following layout for the login fragment (2 edit texts for username & password, 1 button to submit the…
