#### Style of Computing

### Online Transactional

#### Description

A style of computing in which the computer responds quickly to user requests. Each request is considered to be a transaction. Automatic teller machines for banks are an example of transaction processing.

#### Characteristics

- Driven by user input (Query/Response model)
- User waits for system to respond before next step
- Structured and constrained transactions: user can't step out of the environment
- Predictable scenarios
- Overload occurs gradually and can be predicted based on users and transaction rates
- Users are independent of each other
- Information is task-oriented
- Transactions and queries are predefined

#### Implementation Context (examples)

- Shopping web sites
- Claims processing
- Credit card processing
- Data entry
- Document management system
- Web content management system
- Record management system

#### Owner

Jeff Hicks

#### Related links

- Styles of computing presentation