Rapid application development is when we make a computer program or software very quickly. Think of it like building a sandcastle at the beach. You want to build a big castle, but you don't want it to take all day. So, you use a bucket to make a bunch of sand bricks really fast. Then, you start stacking the bricks on top of each other to build your castle. This is like rapid application development.
People use rapid application development to make software really fast. They use special tools to help them build the software quickly. This is like having special tools to help you build your sandcastle quickly. The tools help you do things like write code, design the user interface, and test the software to make sure it works properly.
Rapid application development is useful when you need to make software quickly. It saves time and helps you deliver the software to people who need it faster. Just like building a sandcastle, rapid application development can be a lot of fun too!