E - NASA Headquarters

SCHEDULELkOUTPUTS
Completed Incremental Design
Review (IDR)
Performed Stage Integration
Reviews (SIR)
A series of incremental, cumulative reviews throughout the design phase to assure that system
level requirements are properly implemented in the design, have traceability, and that hardware
and software can be integrated to support staged assembly and operation. IDR # 1 performed
these functions for flights 1A/R through 6A. Subsequently, IDR #2 assessed design progress for
flights 1A/R through 7A. IDR#2B assessed the entire Space Station assembly sequence.
IDRs have been replaced by Stage Integration Reviews (SIR), a more classical critical design
review approach on a stage-by-stage basis which review groupings of flights with assembly
hardware and functionality/performance linkages across the stage.
Performed SIR 1 for flights through 2A (4th Qtr FY 1997)
Performed SIR 2 for flights through 4A (1st Qtr FY 1998)
Performed SIR 3 for flights through 6A (2nd Qtr FY 1998)
Performed SIR 4 for flights through 4R (1" Qtr FY 1999)
Performed SIR 5 for flights through UF-2 (1"' Qtr FY 2000)
Perform SIR 6 for flights through 9A. 1 (2'Id Qtr FY 2000)
Perform SIR 7 for flights through 13A (4" Qtr FY 2000)
Perform SIR 8 for flights through 1OA. 1 (2"d Qtr FY 2001)
Perform SIR 9 for flights through UF3 (3rd Qtr FY 2001)
Prime Development Activity NOTE: All activities listed are planning milestones, and are not contractual.
Flight lA/R: Self-powered, active vehicle: provides attitude control through early assembly stages: provides
Zarya (FGB Energy Block) fuel storage capability after the service module is attached: provides rendezvous and docking
(First Element Launch) capability.
(Proton Launch Vehicle)
Planned (Rev B): Nov. 1997 Completed factory ground testing of first flight unit (slip from 3rd Qtr FY 1997 to 2nd Qtr FY
Revised (Rev D Mod): Nov. 1998 1998)
Completed November 1998 Completed flight software (slip from 3rd Qtr FY 1997 to 1st Qtr FY1998)
0 Delivered FGB flight article to Baikanour (slip from 3rd Qtr FY 1997 to 2'ld Qtr FY 1998)
Installed solar arrays in FGB flight article (slip from 1"' Qtr FY 1998 to 3rd Qtr FY 1998)
Removed Zarya from storage and complete deconservation (1"' Qtr FY 1999)
Mated FGB to Launch Vehicle (slip from 1"' Qtr FY 1998 to 1st Qtr FY 1999)
On-Orbit checkout, Service Module docking, fuel transfer (slip from 1"' Qtr FY 1998 to 1"' Qtr
FY 1999)
0 Launch of the Zarya (1"' Qtr FY 1999)
HSF 1-8