Systems Engineering Glossary
Term | Definition |
---|---|
Data Item Description (DID) | A formal definition of the structure and content of technical data (requirements specifications, design documents, management data-plans and metrics reports) to be provided to the acquirer of the system by the contractor. |
Data Management | A process to plan for, acquire, access, manage, protect, and use technical data over the entire life cycle of a system. |
Database | An organized collection of data with a means of identification and retrieval. |
Decision Analysis Process | A structured methodology that decomposes a decision to its constituent elements and evaluates them as the basis for making a choice among available alternatives. |
Decision Authority | The individual or group responsible for authorizing the transition (at a key decision point) to the next life cycle phase for a program/ project. |
Decision Gate | A project review point for review and approval of progress and plans based on entry and exit criteria as the basis for continuation. |
Decomposition | The partitioning of a system into components. |
Defect | An unintended condition that causes a system to not meet requirements. |
Deficiency Report | Identifies problems requiring documentation, coding, or program changes for fielded systems. |
Demonstration | A verification technique to assess whether an entity performs its functions in accordance with specified requirements at the same level of decomposition. |
Dependency | A cross relationship between requirements at the same level of decomposition. |
Deployment | The transfer of ownership of a completed system to the user. |
Derived Requirements | Requirements (refined from higher level requirements), such as interfaces, that result from the decomposition of a system design or characteristics. |
Design | A process to develop and document a solution to a problem utilizing technology, tools, and experts. |
Design Constraints | |
Detailed Design | |
Discrepancy Report | Documentation of errant conditions that require corrective action. |