What is the process of repeated interactions between two or more processes at a given level in the hierarchy called?

The process of repeated interactions between two or more processes at a given level in the hierarchy is known as iteration. Iteration involves performing a set of operations repeatedly, allowing for refinement and improvement of outcomes based on previous results. This is commonly seen in systems engineering and other fields where feedback loops are essential for evolving processes or outcomes.

In systems engineering, iteration allows teams to revisit and adjust models, designs, or processes based on testing and analysis, ensuring that they are responding effectively to evolving requirements and conditions. This cyclical approach enhances understanding and optimizes solutions over time.

While recursion refers to a process where a function calls itself in its definition, it is different from iteration, which focuses on repeating a series of operations multiple times. Verification and validation are distinct processes concerned with ensuring that a system meets specified requirements and fulfills its intended purpose, but they do not pertain to the concept of repeated interactions at a given level.