NGAO System Design Phase System & Functional Requirements Documents NGAO Meeting #6 Peter Wizinowich April 25, 2007 System Requirements Document • Living document (4 versions during System Design phase) – Intended to guide design – Avoids specific design or implementation solutions • Science requirements – Science Performance requirements • Includes assumptions about seeing & telescope environment – Science Instrument requirements – Shows flowdown from Science Case Requirements Document • Observatory requirements • Requirements by discipline – Optical, mechanical, electronics/electrical, safety, software, interface, reliability, spares, service & maintenance, documentation – Should show flowdown from Science & Observatory requirements • Separate “Instrumentation Baseline Document” – More generic set of requirements applicable to all Keck instruments – These are not repeated in the SRD 2 Functional Requirements Document • Living document (4 versions during System Design phase) – Intended to guide design – Provides source for compliance matrix against which design & delivered systems will be tested – Makes assumptions about specific design or implementation choices • Divided up by major subsystems – Requirements for all subsystems section – Major subsystems: AO system, laser facility, science operations, telescope facility, deployable IFU, imager/spectrograph, IFU – Same breakdown as for SRD under each subsystem • Optical, mechanical, electronics, etc. • Flow down from SRD to subsystems (& major components) should be shown 3 System Requirements Replan 4 Functional Requirements Replan 5 Replan Milestones (changes in bold) MILESTONE DATE DESCRIPTION SD SEMP Approved 10/9/06 Approval of this plan by the Directors. Initial SEMP version released to Directors for comment on 9/12 & final version on 9/29/06. SD phase contracts in place 10/27/06 Contracts issued to Caltech & UCSC for the system design phase. Science Requirements Summary v1.0 Release 10/27/06 Initial Release of the Science Requirements as input to trade studies and performance budgeting System Requirements Document (SRD) v1.0 Release 12/8/06 Initial release of System Requirements with emphasis on the science requirements Performance Budgets Summary v1.0 Release 6/15/07 First round of all performance budgets complete & documented SRD v2.0 Release 5/22/07 Second release of System Requirements Doc Trade Studies Complete 6/8/07 All trade studies complete & documented (as a series of Keck Adaptive Optics Notes) SRD v3.0 Release 8/6/07 Third release of System Requirements System Design Manual (SDM) v1.0 Release 9/6/07 First release of System Design Manual Technical Risk Analysis v1.0 Release 9/21/07 First round of project risk analysis complete & documented Cost Review Complete 11/30/07 Project cost estimates complete, documented & internally reviewed SDM v2.0 Release 2/21/08 Second release of System Design Manual System Design Review Package Distributed 3/4/08 SDR documents sent to reviewers System Design Review 3/31/08 SDR meeting SDR Report & Project Planning Presentation at SSC meeting 4/14/08 Final SD phase report including results of SDR & project plans 6 Replan Month System Design Phase Mgmt (WBS1) May/07 Requirements (WBS2 & 3.1.3.3) SCRD v2 SRD v2 FRD v0 & Sci Instrum FRD v1 Prog Rep #3 Jun/07 SCRD & SRD v3 Jul/07 Laser Fac FRD v1 Sci Ops FRD v1 System Eng (WBS3.1) Perf budgets Trade studies Define candidate subsystems Perf budget summary v1 Eval candidate subsystems Org candidate subsystems Define candidate architectures Eval candidate architectures Aug/07 Prog Rep #4 AO Sys FRD v1 KSM Select candidate architectures Technical risk analysis v1 Sep/07 Perf budget summary v2 Oct/07 Prog Rep #5 Nov/07 Dec/07 Prog Rep #6 Jan/08 Feb/08 SDR Mar/08 Apr/08 Proj Rep #7 SDR Report response FRD v2 Design (WBS3.2 to 3.6) System Eng Mgmt Plan (WBS4) Science Ops Laser Facility Science Ops Laser Facility & Science Ops SDM v1 AO System Laser Facility & Science Ops d-IFU report v1 AO System, Laser Facility & Science Ops Imager/Spect v1 AO System Laser Facility & Science Ops AO System Laser Facility Science Ops Science Ops IFU Report v1 SDM v2 IFU Report v2 d-IFU report v2 Imager/Spect v2 SEMP + Cost review SEMP Cost review SEMP SEMP SEMP 7 Next Steps • Complete the following items in May: – SCRD & SRD v2 – FRD v0 & Science Instruments FRD v1 8