Mumbai University > Computer Engineering > Sem 7 > Software Archgitecture.

Marks: 5 M

Year: May 14

Dependability is a collection of system properties that allows one to rely on a system functioning as required The different dimensions of dependability are:

• Reliability is the probability that a system will perform its intended functionality under specified design limits, without failure, over a given time period
• Availability is the probability that a system is operational at a particular time
• Robustness is a system’s ability to respond adequately to unanticipated runtime conditions
• Fault-tolerant is a system’s ability to respond gracefully to failures at runtime
• Survivability is a system’s ability to resist, recognize, recover from, and adapt to mission-compromising threats
• Safety denotes the ability of a software system to avoid failures that will result in

1. Loss of life
2. Injury
3. Significant damage to property
4. Destruction of property