What Is Function Point (FP)?

You're a software developer, right? You're not just writing code—you're building things. You're creating products that change how people see the world, and you want to deliver those products in the most efficient way possible but how do you know what features to include in your product before writing a single line of code? How can you know exactly how much time it will take for your team of developers to build it? That's where function points come in. Function point (FP) approximate the development cost early in the process by defining the required functions and their complexity in a piece of software. Doing this allows us to estimate how much effort will go into building each feature, so we can then determine which features should be included in our final product. If you're like Software Developer, you've been wondering for years: how do you figure out how many lines of code a piece of software has? Well, —it's not as easy as it sounds. Some people think that the number of lines of code is directly related to the size of a piece of software. Wrong! Other factors determine the size of your piece of software, including its many functions and how complex those functions are. Function points measure the complexity of functions in terms of business users rather than lines of code or other factors. Function points can be derived from requirements and estimated early in the development process before actual lines of code are written. The number of function points depends on function complexity; the more complex a function is, the more function points it will have. Before beginning to write any code, function point analysis can help establish your application's business functionality and the cost impact it will have on your business operations.