The five things that can go wrong with a computer system

Some of the consequences of non-life-critical systems failing

Examples of critical systems

Some consequences of critical systems failure

Malicious intent with a critical system

Types of backing-up data

Backup Procedure

Disaster Recovery Definition

Disaster Recovery Procedure

Redundancy Definition

Three main types of redundancy

Parallel Setup

Fault-tolerant Design

Failing Gracefully

Defensive Programming

Measuring Reliability

Alpha Testing

Beta Testing

End-users