The objective of this section is to offer on-line information as a "Structured list" for access by those responsible for developing and implementing Process Safety, for example, Health and Safety Managers, Safety Engineers, and other interested parties. Many terms typically associated with safety matters are include, and structured under seven main topics. Each topic is divided into categories, with each category having various components. Each component contains sub-components as necessary. The terms have been defined using bibliographic references and other reliable sources. A database of pertinent websites, evaluated by the members of the S2S project, has been linked to the terms which may be found by clicking on the term to be accessed. By clicking on each topic, the system will show the categories as "contains:". By clicking on each category, the system will show its topic as "belongs to:", and its components as "contains:" The complete structured list may be displayed by expanding the links within the list. See also: "Glossary"