Gi Ch. 37 Data Sources And Data Structures

Front 1

Responsibilities of the Actuary regarding usage of data:

Back 1

 Quote the entire General-Data Quality Issues.

Front 2

Uses Of External Data & Uses Of Internal Data

Back 2

 Quote the entire General-Data Sources: Internal vs. External Data

Front 3

Actuarial Information Systems (AIS’s)

Back 3

 facilitate reporting rather than processing
 allow hands-on manipulation
 Used for:
 reserves
 trend analysis
 experience monitoring
 ratesetting
 provider/network analysis (utilization, costs)

Front 4

Data Storage Methods

Back 4

 On-line – immediately available. Efficient.
 Near line – compressed, but immediately-available. A compromise.
 Off-line – removable disk. Cheapest, but slowest access.

Front 5

Types of Data Structures

Back 5

 Sequential File – cheapest but slowest
 Indexed Sequential File – sortable / searchable
 Relational Database – indexed tables. most efficient but most expensive
 Dimensional Database

Front 6

Considerations in Choosing Data Storage Method and Data Structure

Back 6

 Desired manipulation of data
 available storage space
 Volume of Data
 frequency of use
 Retrieval Time
 Trade-Off: Ease of Programming vs. Accessibility.
Done.