Model-Based Systems Engineering Symposium Managing Complexity (Risk) using Model Based Engineering Approaches on the SEA 4000 AWD Program

Transcription

1 Model-Based Systems Engineering Symposium 2014 Canberra, Australia Managing Complexity (Risk) using Model Based Engineering Approaches on the SEA 4000 AWD Program October 2014 Steve Saunders FIEAust CPEng

2 Agenda Introduction Dichotomy Between MBCD and MBSE Complexity 101 SEA4000 Air Warfare Destroyer Prelude SEA 4000 Lessons Dynamic Tension: Enterprise vs Engineering Needs SEA 4000 Strategy Using MBCD Using MBSE Risk Viewpoint Integration Conclusions Questions Page 2

3 Prelude Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. - Perlis Complexity Cognition Risk Reduction Page 3

4 Introduction Most Modern Systems Developments in Domain are Massively Complex Complexity as such that the Human Mind cannot analyse Must employ techniques to manage complexity Model Based approaches must enable this SEA 4000 Air Warfare Destroyer Program used as a case study But before we start, what is MBE, MBCD, MBSE?? Page 4

5 Dichotomy Between MBCD and MBSE Concept Definition Enterprise Viewpoints Enterprise and Business Understanding in abstracted views Program Committed Costs driven by few Key Parameters & Relationships Technical Viewpoints Engineering Profession Trained in facts/laws - Details Systems Engineering Page 5

6 Complexity 101 SEI/NDIA Report CMU/SEI-2012-SR-009 Complexity Proportional to Challenge and Risk of Requirements Error Page 6

7 Complexity 101 Defense Acquisition University 1993 Total Ownership Cost Errors in Requirements Total Ownership Cost highly Sensitive to Errors in Requirements Page 7

8 SEA4000 Air Warfare Destroyer Prelude Delivering one of the world s most capable multipurpose warships The AWD Alliance, responsible for delivering three world-class warships to the RAN. The Hobart Class destroyers will be the most capable surface combatants ever operated by the RAN, able to assume a leading command and control role with ADF and coalition forces. As Mission Systems Integrator Raytheon Australia is: Developing the Hobart class combat system architecture; Developing the Hobart class combat system design; Developing the integrated support systems; Integrating non-aegis elements of the combat system; and Providing project management and systems engineering services. Page 8

9 SEA 4000 LESSONS Photos Courtesy AWD Alliance 9

10 Dynamic Tension: Enterprise Level vs Engineering Level Key Stakeholders need big picture concepts Use of appropriate viewpoints of the data Considerations of required visualisations Considerations for current (Build phase) and through-life (Support phase) Think from the Stakeholder s point of view, not the modeler's Engineers trained to capture accurate data Accurate data compounds complexity problem Use of appropriate MBE tools to ensure consistency and accuracy of the data set MBE tools encourage capture of detail How can we Meet Stakeholder Needs but Preserve Data Accuracy? Page 10

11 Dynamic Tension: Enterprise Level vs Engineering Level Compliance Viewpoint Present Data for Intended Audience Many, Many Views Required Model Representation of AWD System Page 11

12 Dynamic Tension: Enterprise Level vs Engineering Level MBSE Model Accurate, Consistent, Engineering Notations Visualisation Layers Adapted for Enterprise Stakeholders Page 12

13 AWSS 10 VSR IFF HSR SSRS EO/IRST AWS 20 C&D ADS WCS ACTS ORTS SPYCP CSSE LSE ACI AWWS 30 VLS GWS SSMS FCS VSRD 40 VSRAD VSRSD FP Not Used USW 50 USWC HMS VDS AWSS 10 VSR IFF HSR SSRS EO/IRST AWS 20 Interface Level C&D To Be Defined - Waiting on Product Selection ADS Human In The Loop - Procedural WCS Existing Interface (No Changes) ACTS Simple Gateway Conversion Between OTS Components ORTS Minor Change to either/both ends to Interafce SPYCP Complex Gateway Conversion Between OTS Components CSSE New Interface to FMS or Complex Product Interface Change LSE Future Integration ACI AWWS 30 VLS GWS SSMS FCS VSRD 40 VSRAD VSRSD FP Not Used USW 50 USWC HMS VDS OTST TDS DDS UCS MOAS EWS 60 EWC MW ES SMW ES CML MW EA NULKA ASMWD CIS 70 RF INTCOM CIS MGMT CEC DLINK AVS 80 HOP HLA NAV 90 IBS INS NAVSEN SMM A0 SMMS A SMMC A OBTS B0 OBT CONT B OBT SIM B0-02 OBT STIM B0-03 ATI C0 ATIFW C ASWCS C EWSCS C EXT XX-XX OTST TDS DDS UCS MOAS EWS 60 EWC MW ES SMW ES CML MW EA NULKA ASMWD CIS 70 RF INTCOM CIS MGMT CEC DLINK AVS 80 HOP HLA NAV 90 IBS INS NAVSEN SMM A0 SMMS A0-01 SMMC A0-02 OBTS B0 OBT CONT B0-01 OBT SIM B0-02 OBT STIM B0-03 ATI C0 ATIFW C0-01 ASWCS C0-02 EWSCS C0-03 EXT XX-XX Integration of Visualisations 1. Direct Viewpoints into the Model e.g OV-5b 2. Model data directly populates Visualisation (VISIO and EXCEL) e.g. SV-3 3. No Tool Integration; Architect abstracts concepts e.g. OV-1 Page 13

14 SEA 4000 Phase 2 MBSE dd Page 14

15 SEA 4000 Phase 2 Using MBCD dd Page 15

16 SEA 4000 Phase 2 and MBSE dd Stakeholder Collaboration With Consideration for Full Life-Cycle / Evolution Paths Output is Balanced Requirements! Fit to COTS Systems Architecting Common Risk Focus (All Aspects) System Development From Best For Program Specification Page 16

17 Examples from AWD MBCD Operational Vignettes Risk Hybrid model SysML Notation SysML (for OV-5b, SV-5a, SV-4) augmented by VISIO, Excel, Powerpoint Visualisations Concept Visualisations Recognises Concept Stakeholders Needs Non-Integrated Views Managed by System Architect Page 17

18 Examples from AWD MBSE Majority within MBSE Environment SysML, though some Visualisations Remain Visualisations cover SysML Notation Interface Risk Profile, Technology Forecasts, Test Sequencing, Certification Boundary, Security Viewpoints etc. Non-Integrated Views Managed by System Architect Supporting Visualisations Page 18

19 Risk Viewpoint Integration Risk Minimisation is a Common Denominator Compliance Risk Technology Readiness Risk Regulatory Risk Integration Risk Sustainment Risk Security Risk Certification Risk Cost Risk Etc Focus Team on Risk Vector Mitigation as a Common Goal Page 19

20 Conclusions Modern Systems are COMPLEX Surpasses Human Cognitive Ability MBE must enable SIMPLIFICATION and Addition of DETAIL Simplification is HARD, the results are PROFOUND MBCD tools must support RAPID architectural EXPERIMENTS Engineers like DETAIL, keep a reign on them! Current MBE Tools Unable to provide all viewpoints needed Know what to model and what not Think of the Output not the Model Focus Team on Risk Vector Mitigation as a Common Goal It is all about a BALANCE, Appropriate Viewpoints on the Data Set and RISK VECTOR MITIGATION Page 20

21 Managing Complexity (Risk) using Model Based Engineering Approaches on the SEA 4000 AWD Program Questions? Steve Saunders Raytheon Australia Page 21

22 Acronyms ADF Australian Defence Force AWD Air Warfare Destroyer (SEA 4000) CDG Capability Development Group COTS Commercial Off-the-Shelf DoDAF Department of Defense Architecture Framework MBCD Model Based Concept Design MBE Model Based Engineering MBSE Model Based Systems Engineering OMG Object Management Group OV-5b DoDAF Operational Activity Model RAN Royal Australian Navy SV-4 DoDAF System Functionality Description SV-5a DoDAF Operational Activity to System Function Traceability Matrix SysML OMG Systems Modeling Language Page 22

23 About the Author Steve Saunders is an Engineering Fellow of Engineers Australia and for Raytheon Australia. He received his Bachelor of Electrical Engineering, from the University of Technology Sydney (UTS) with first class Honours in He has worked with Rockwell International, Boeing Australia and now Raytheon Australia on Australian Defence projects in various Systems Engineering Management, Requirements Development, Architecture, Design and Test roles. He is an OMG recognised Raytheon certified architect having completed the Raytheon Certified Architect Program in Steve has been involved in the Royal Australian Navy s Air Warfare Destroyer Program since 2005 as the Combat System Chief Architect working in phase 2 of the Program to establish the Combat System architecture. He is now the AWD Combat System Chief Engineer and Combat System design authority. Page 23