What term refers to a value in code that can be stored and changed?

A variable is a fundamental concept in programming that represents a storage location in memory, which has a specific data type and can hold a value. This stored value can be modified throughout the execution of the program, making variables essential for dynamic data manipulation. By using variables, programmers can create more flexible and powerful code, as they allow for the storage and retrieval of data that can change as the program runs.

The other terms provided, while relevant in their respective contexts, do not convey the same meaning as a variable. A subroutine refers to a block of code designed to perform a particular task, which can be called upon as needed, but it does not represent a changeable value. Means-End Analysis is a problem-solving technique used in artificial intelligence and decision making, focusing on finding paths to achieve a goal, rather than storing data. Iterative refers to a process that repeats a set of instructions for a number of cycles or until a certain condition is met, rather than describing a storage element for data. This distinction solidifies the role of variables as changeable and storable values in programming.