Once the source is reachable, select the fact table and the related tables that describe its records. Map amounts or quantities as measures, categories as dimensions, and an appropriate date field as time.
For an activity log, first decide what one record represents. Avoid treating an identifier as a quantity to sum. If totals are the goal, define the appropriate measure and verify it against a known result.
SQLite data may need preparation before modeling. Check that numeric fields contain usable numbers and that dates have a consistent representation. Convert or normalize values in an appropriate reporting query or dataset and validate the resulting column mappings.
Use the visual model designer guide for the design workflow and visual semantic modeling for modeling concepts.