What term describes the rules for distributing values in time rollups?

The term that describes the rules for distributing values in time rollups is known as breakback. Breakback is a process often used in financial modeling and planning applications to propagate values from lower levels of detail to higher levels, particularly in time-based scenarios. This means that when a value is updated or changed at a detailed level (such as within a specific month), the breakback mechanism allows this change to be reflected in higher-level time periods, like quarters or years, based on predefined distribution rules.

This capability is crucial in maintaining consistency within financial data and ensuring that updates at a granular level synchronize correctly with aggregated financial forecasts. It allows planners to make adjustments easily while ensuring that the overall financial picture remains accurate and coherent, enabling better insights and decision-making.

Other options refer to different concepts. Data validation involves ensuring data integrity and accuracy, dimension mapping relates to the relationships between various dimensions in a model, and sheet security deals with permissions and access controls for data sheets. While each of these plays an important role in data management and planning, they do not pertain to the specific rules governing time rollups for value distribution in the context of financial planning.