There are a number of different product development methodologies out there, but one of the most popular and effective is agile methodology. So what is agile methodology? In a nutshell, agile methodology is all about creating and delivering products in a rapid, iterative manner. This means that instead of spending months or even years developing a product and then releasing it all at once, you break the development process down into smaller chunks and release new versions of the product on a regular basis.
There are a number of benefits to using agile methodology in product development. First of all, it allows you to get feedback from users on an ongoing basis, which means you can make changes and improvements to the product based on that feedback. Secondly, it helps to reduce risk, because you're not putting all your eggs in one basket and releasing a product that may not be successful. Finally, it's simply a more efficient way of working, because you're constantly moving forward and making progress, instead of being stuck in development limbo for months on end.
If you're interested in learning more about agile methodology and how it can benefit your product development process, there are a number of resources available online. Here are just a few:
https://www.agilealliance.org/agile101/
https://www.scrumalliance.org/agile-glossary/agile-project-management
https://www.atlassian.com/agile