What can scattered facts reveal when they are collected and combined? Data aggregation rolls information into a consolidated view, helping organizations understand immediate needs, long-term behavior, and broader patterns. section 2.4.8 section 7.2.2
Fresh data can support immediate personalization, targeting, and messaging. Aggregated data becomes more valuable over time because it reveals trajectories and preferences that no single event can show. section 2.4.8
Aggregation commonly works in several ways:
- Roll data upward through hierarchies, such as census block to ZIP code, county, state, and country. section 7.2.2
- Combine dimensions such as geography, product, price, promotions, gender, customers, or patients. section 7.2.2
- Integrate multiple sources, such as traffic, demographics, employment, competition, and pricing, to evaluate facility locations. section 6.1
- Support reporting, budget planning, promotions analysis, and other applications whose summarized data has traceable origins. section 7.2.2
Recognizing students at risk
A college combined attendance, assessment results, and engagement with faculty and administrators to identify first-generation students at risk of dropping out. Tailored messages and actions helped reduce dropout rates. section 2.4.8
Aggregation also raises choices about control and value. Data intermediaries can let people place all or part of their data into selected pools, change participation terms, block access, or leave a group. section 6.7
