What Is System Integration Testing (SIT)?

Do you know when you get home after a long day at work and want to kick back and watch some Netflix? But then you realize that your TV isn't hooked up to the internet, so you have to go through that whole rigamarole of unplugging it, plugging in your laptop, logging into Netflix, signing up for an account, and then… wait. You forgot to plug in your computer! That's kind of what system integration testing (SIT) is like. It's the process of ensuring that all the different parts of a system are working together correctly, and it's essential. SIT is the most critical part of testing because it provides that all your systems work together as expected. Without SIT, anything could be from minor bugs to significant data loss issues. SIT, and testing can be done manually or using specialized tools. The automated SIT testing approach, which is more common, executes hundreds of thousands of test cases to complete a full regression test of the sub-components. The main idea behind SIT is to test all possible system scenarios by simulating real-world conditions. As a result, SIT is better prepared to deal with unforeseen challenges that are likely to occur in the field than in unit testing. When we talk about system integration, it's not just connecting components. It's about connecting them in a way that makes sense and is easy to maintain. System integration testing (SIT) is the process of ensuring that all systems work together seamlessly. SIT provides that your automation works with other components and databases in a way that makes sense and is easy to maintain. You often hear "automation" as a synonym for "robots," but that's not the case! Your automation could be anything from an Excel spreadsheet to a complex set of scripts created by an expert developer. SIT testing ensures that all these things work together in a way that makes sense and checks whether your automation will be able to do what you need it to do.