What should be done with expressions to make them easier to understand?

Renaming expressions is a key practice in enhancing their clarity and understandability. When expressions are given more intuitive or descriptive names, it becomes easier for users to grasp their purpose and the relationships between them. This is particularly useful in complex models where multiple expressions may interact with one another. A well-named expression can convey its function, reducing cognitive load on the user and making it easier to track how the expression fits into the overall modeling process.

For instance, instead of using vague names like "expr1" or "value2", using descriptive terms such as "totalRevenue" or "discountRate" gives immediate context. This not only aids in immediate understanding but also assists anyone else who may work on the model in the future, creating a more collaborative and less error-prone environment.