TVM draws on the experience of financial reporting. TVM reporting aims to be clear and relevant, and does this by reporting in a modular manner around issues that are material for the community.
The first level of TVM reporting is the comparative balance sheet. This shows changes in key matters for the community period to period, that is year to year, or month to month, or at even more frequent intervals.
Most good, stable communities change rather slowly, and there is little that is material to report. Poor communities, on the other hand may have a lot that is material because, for example, small changes in crop production can easily magnify malnutrition in children and mortality.