1.1This practice covers a logical structure for the function analysis of a project, product, or process.
1.2This practice provides a system to identify, define, and clearly communicate the purpose of a project, product, or process and the associated elements of the project, product, or process.
1.3This practice covers the relationship between the functions that must be satisfied and the resources for a project, product, or process to accomplish those functions.
1.4The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.