IEEE 21839-2019
System of systems (SoS) considerations in life cycle stages of a system
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About This Item
21839-2019 is a technical standard focused on system of systems (SoS) considerations across the life cycle stages of a system. It is relevant to computing and processing, as well as components, circuits, devices, and systems, where multiple interconnected elements must be planned, developed, operated, and maintained with attention to their combined behavior. This standard helps clarify how SoS thinking supports more consistent engineering decisions and reduces integration issues.
About 21839-2019
This standard addresses the life cycle view of a system of systems, where individual systems interact and contribute to a larger capability. 21839-2019 is useful for teams that need a structured way to consider coordination, interfaces, dependencies, and evolving requirements from early concept through deployment and support. In technical environments, that can improve alignment between design activities and operational realities, especially when several independently managed systems must work together reliably.
Where is 21839-2019 used?
21839-2019 is typically used in projects involving interconnected computing platforms, embedded systems, control environments, and engineered systems that depend on multiple components or subsystems. It may be applied during architecture planning, integration work, verification, and life cycle management when system interactions affect overall performance. The standard is especially relevant where one system’s changes can influence others, making interface discipline and coordination important throughout development and operation.
Importance in practice
In practice, this standard supports clearer control of complex system relationships and helps reduce risk when multiple systems must operate as one capability. It can assist with compliance planning, procurement language, design reviews, and testing strategies by giving stakeholders a common framework for SoS considerations. For organizations managing long-lived or evolving systems, 21839-2019 can also help improve consistency in decision-making and support more predictable integration outcomes.
- System of systems life cycle focus
- Interface and dependency considerations
- Integration and coordination across systems
- Applicable to computing and engineered systems
- Supports consistent technical review and planning
- Publication Date: 2019
- Standard Status: Active
- Publisher: IEEE
- Subject: Computing and Processing; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
- This Version: 21839 (2019)
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