Global distribution of maternal causes of. death. A maternal death is defined as the death of a. woman while pregnant or within 42 days of. termination of pregnancy, regardless of the. site or duration of pregnancy, from any cause. related to or aggravated by the pregnancy or. its management.
There are two types of control systems namely: 1  Open loop control systems (non-feedback control systems) 2  Closed loop control systems (feedback control systems)
The most common types of systems access controls Access control requires unique user identification, emergency access procedure, automatic log-off, and encryption and decryption of data. In order to maintain confidentiality, integrity and availability of data, it is important to control access to the information system.