week 10

3.10 Data models

3.10.1 Know the types of data models and understand how they organise data

into structures:

• hierarchical

• network

• relational.

 

3.10.2 Know and understand the factors that impact the selection of data model

for organising data:

• efficiency of accessing individual items of data

• efficiency of data storage

• level of complexity in implementation.

 

 

3.10.3 Understand the benefits and drawbacks of different data models and

make judgements about the suitability of data models based on efficiency

and complexity.

 

3.10.4 Be able to draw and represent data models:

• hierarchical models with blocks, arrows and labels

• network models with blocks, arrows and labels

• relational models with tables, rows, columns and labels.

Last Updated
2025-07-07 15:37:14