DIT5 · Organisation 1 / Organisation 2 Processing data with spreadsheets mind map
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Organisation 1
Grouping and subtotals: Outline detail; summarise correct groups
Linked worksheets: Link sheets; avoid stale retyped totals
Views and display: Freeze context; hiding is not protection
Organisation 2
Macros: Automate repeatable steps; test changing data
Testing a workbook: Test boundaries, links, ranges and updates