MIL-DTL-5015 of multi-contact circular connectors that were used by virtually every aircraft builder in the United States. Cannon's Type "AN" (Army-Navy) series set the standard for modern circular connectors procured under MIL-C-5015—now MIL-DTL-5015—military specifications. The military specification MIL-DTL-5015 was superseded by SAE-AS50151 in December 2009 pursuant to the general United States Department of Defense goal to reduce the number of military standards in favor of industry technical standards supported by Standards Developing Organizations (SDO) such as the ISO 9000 series for quality assurance and the SAE for technical specifications. MIL-DTL-5015 circular connectors are used primarily for their ease of engagement and
ISO 21500 re-designation of ANSI/PMI 99-001-2004): 11/20/2008. ISO plans for this standard (21500) to be the first in a family of project management standards. ISO also designed this standard to align with other, related standards such as ISO 10005:2005 Quality management systems − Guidelines for quality plans, ISO 10006:2003 Quality management systems − Guidelines for quality management in projects, ISO 10007:2003 Quality management systems − Guidelines for configuration management, ISO 31000:2009 Risk management – Principles and guidelines. The process approach to project management developed in the 1980s, largely in Europe. The main focus of this approach is the use of structured processes