# System design review

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A **system design review** (**SDR**) is a scheduled review of many government-contractor relations, which ensures continuous involvement throughout a program. The SDR was originally defined in the Air Force's MIL-STD-1521.[1]

The SDR is a technical review conducted to evaluate the manner in which a project's system requirements have been allocated to [configuration items](/source/Configuration_item), [manufacturing](/source/Manufacturing) considerations, next phase planning, [production](/source/Manufacturing) plans, and the engineering process that produced the allocation. This review is conducted when the system definition is at a point where system characteristics and configuration items are defined. A successful SDR establishes a *functional [baseline](/source/Baseline_(configuration_management)).*

The MIL-STD-1521 was cancelled in 1995 without replacement for the SDR material.[2] Since that time, the DoD 5000 system has been created which uses technical reviews as described in chapter 4 of the [Defense Acquisition Guide](/source/Defense_Acquisition_Guide) discussions on their role [3] or shown in the diagram of the integrated defense acquisition, technology and kogistics life cycle management framework [4] wallchart.[5][6] There is no identical replacement for the previous SDR, but the system functional review (SFR) is similar.

## See also

- [Design review (U.S. government)](/source/Design_review_(U.S._government))
- [Functional requirement](/source/Functional_requirement)

## References

1. ["MIL-STD-1521B"](http://www.everyspec.com/MIL-STD/MIL-STD-1500-1599/MIL_STD_1521B_1503/) (PDF). USAF. 1996.

1. ["MIL-STD-1521B cancellation"](http://www.everyspec.com/MIL-STD/MIL-STD-1500-1599/MIL-STD-1521B_NOTICE-3_23483/)

1. ["DAU Test & Evaluation Management Guide\]"](http://www.dau.mil/pubs/gdbks/T&E_MgmtGuide.pdf)

1. ["Integrated Defense Acquisition, Technology and Logistics Life Cycle Management Framework"](http://akss.dau.mil/ifc)

1. ["IDF chart (front)"](http://www.dau.mil/pubs/IDA/chart%20front.pdf)

1. ["IDF chart (back)"](http://www.dau.mil/pubs/IDA/chart%20back.pdf)

## External links

- DoD Integrated Framework Chart IFC ([front](https://spacese.spacegrant.org/uploads/Project%20Life%20Cycle/DAU_wallChart.pdf), [back](https://www.dau.edu/cop/space/DAU%20Sponsored%20Documents/Ver%205.4.14%20Space%20back%2025%20Jul%202012%20Final.pdf))

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