cdf infopack 2015
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1CDF Info Pack 2015| Slide 1 ESA UNCLASSIFIED Releasable to Public
The ESA Concurrent Design FacilityConcurrent Engineering Applied to
space mission assessments
CDFESA/ESTECNoordwijk - NL
CDF Info Pack 2015| Slide 2 ESA UNCLASSIFIED Releasable to Public
CDF: what is it?
The ESTEC Concurrent Design Facility is an Integrated Design Environment (IDE) available to all ESA programmes for interdisciplinary and inter-directorate applications, based on Concurrent Engineering methodology
The implementation started in Nov.1998, on an experimental basis with initiative (and support) of the General Studies Programme (GSP)
Initially conceived for the assessment and the conceptual design of future space missions, i.e. internal pre-phase A / feasibility studies
Featuring: Team orientated concurrent engineering Integration of tools, project data, mission and system models Simultaneous participation of all mission domains, incl.
Programmatics/AIV, Operations, Cost Engineering, Risk Analysis, CAD, Simulation
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2CDF Info Pack 2015| Slide 3 ESA UNCLASSIFIED Releasable to Public
ContractualPackage
SystemRequirements
Update SRDUpdate SRD
ESA Project life cycleESA-CDF record
Sta
keho
lder
s(e
g. S
cien
ceCom
mun
ity)
INDUSTRY
A B1 B2 C/D
Industrial Study / Activity
or
Design work Design work Design work Design work
PRR SRR PDR
= CDF application / quantity
Generation ofMission Idea
CDR
IndustrialStudy
CDFStudy
Phase0
190+
3229
7
2
3
2
CDF Info Pack 2015| Slide 4 ESA UNCLASSIFIED Releasable to Public
So, What is Concurrent Engineering
Concurrent Engineering is a systematic approach to integrated product development that emphasises the response to customer expectations. It embodies team values of cooperation, trust and sharing, in such a
manner that decision making is by consensus,involving all perspectives in parallel, from the
beginning of the product life-cycle.
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Teamwork
1. SequentialWhy do we need concurrent engineering?
!
CDF Info Pack 2015| Slide 6 ESA UNCLASSIFIED Releasable to Public
Teamwork
2. Centralised
System Architect
To overcome the communication gaps between the designers (who produce design information) and the users (who utilise the design information)
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4CDF Info Pack 2015| Slide 7 ESA UNCLASSIFIED Releasable to Public
Teamwork
3. Concurrent
Team LeaderSystem Engineer
All of the people, all of the time, all in the same place
CDF Info Pack 2015| Slide 8 ESA UNCLASSIFIED Releasable to Public
Teamwork - Comparison
Sequential ConcurrentCentralized
Simple Natural Efficiency increase Speed increase Increased system
awareness Better Communication
Efficiency increase Speed increase All aware of the
system
Slow speed Easy divergence from
requirement Not fail safe Poor communication
Control Needs guidance
Relies on 1 central person
Not fail safe
Global Increase of output quality and speed
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5CDF Info Pack 2015| Slide 9 ESA UNCLASSIFIED Releasable to Public
Benefits
Performances (typical pre-Phase A study):
Study duration (Design phase): 3-6 weeks (cp. 6-9 months!)
Factor 4 reduction in time
Factor 2 reduction in cost(for the Customer)
Increased nr of studiesper year, compatibly with max 2 parallel studies
Quality improvement, providing quick, consistent and complete mission design, incl. technical feasibility, programmatics, risk, cost
Technical report becomes part of the specs for industrial activity,
(Cost report remains the ESA independent reference)
Capitalisation of corporate knowledge for further reusability
CDF: an essential tool for the ESA Decision Making & Risk Management processes
CDF Info Pack 2015| Slide 10 ESA UNCLASSIFIED Releasable to Public
CDF: the team
1. Team of ESA specialists (senior and junior!)2. Technical disciplines (CDF positions) selected for
Phase 0 studies (according to ESA organisation):
Systems PowerInstruments Command and Data HandlingMission analysis CommunicationsPropulsion Ground Systems & OperationsAttitude and Orbit Control SimulationStructures/Configuration ProgrammaticsMechanisms/Pyros Risk AssessmentThermal Cost Analysis
Note: Instrument design activities have specialised teams with disciplines such as Receiver, Optics etc.
Black: sub-system levelBlue: system levelRed: based on hi-end tools
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6CDF Info Pack 2015| Slide 11 ESA UNCLASSIFIED Releasable to Public
Process elements
1. Conducted in sessionsa. Plenary meeting where representatives of all space
engineering domains participate from early phases (requirement analysis) to end of design (costing)
b. 6 to 10 sessions / study 4 hours / sessionbi-weekly frequency
c. Team leader co-ordinationd. Customer participation
2. Model driven3. On-line design 4. Highly co-operative & interactive5. Iterations6. Design options comparison and trade-offs
CDF Info Pack 2015| Slide 12 ESA UNCLASSIFIED Releasable to Public
Design process
Environment
Lifetime
Payload
Reliability
Schedule
Mission requirements &
constraints
Products
Study Level
Planning
Study requirements
Studyresults
Conceptual model of mission & spacecraft design process
Resources
Objectives
Technology
Budget
Configuration
Cost
S/C Design
Risk
Simulation
Programmatics
Options
Launcher
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7CDF Info Pack 2015| Slide 13 ESA UNCLASSIFIED Releasable to Public
1. Model each domain (e.g. s/s) design2. Share data between domain models3. Interface with domain specific tools4. Provide user visibility
Use spreadsheets (MS Excel)
CDF: Integrated Design Model (*)
Replaced by OCDT (Open Concurrent Design Tool) in the course of 2014
CDF Info Pack 2015| Slide 14 ESA UNCLASSIFIED Releasable to Public
CE: iterative processThe Spiral Model
Sub-system Design
Design Verification
Risk Assessment
Cost Analysis
Mission RequirementAnalysis
Mission Analysis
Key parameter X
Key parameter Z
Key parameter Y
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Exchanging Data
Process:1. Specialist k performs
an estimate and shares data in CR
2. Data is available to other specialists
System
Cost
Discipline i
Discipline j
Discipline k Central Repository (CR)
Data
CDF Info Pack 2015| Slide 16 ESA UNCLASSIFIED Releasable to Public
Exchanging Data
Process:1. Specialist k performs
an estimate and shares data in CR
2. Data is available to other specialists
3. Each specialist can use this data to perform calculations and share the results
System
Cost
Discipline i
Discipline j
Discipline k Central Repository (CR)
Data
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Exchanging Data
Process:1. Specialist k performs
an estimate and shares data in CR
2. Data is available to other specialists
3. Each specialist can use this data to perform calculations and share the results
x. System makes budgets
System
Cost
Discipline i
Discipline j
Discipline k Central Repository (CR)
Data
CDF Info Pack 2015| Slide 18 ESA UNCLASSIFIED Releasable to Public
Exchanging Data
Process:1. Specialist k performs
an estimate and shares data in CR
2. Data is available to other specialists
3. Each specialist can use this data to perform calculations and share the results
x. System makes budgetsy. Overall process iteratesz. Final design done, all information available in CR
System
Cost
Discipline i
Discipline j
Discipline k Central Repository (CR)
Data
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Exchanging Datavs. later phases
Concurrent early phases (0, A) Later Phases (B, C, D, E)
time
baseline
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ESA-CDF previous solution:Integrated Design Model
Inputs Sheet
Outputs Sheet
Calculation Sheets
Presentation Sheets
Data Parking (matrices)
Domain Specific Tools &
DBs
Data Exchange
(scalars)
Subsystem-1
Subsystem-n
Cost
System
Risk
Programmatics
Large Data Structures
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PostgreSQLProtocol
over TCP/IP
Web Services Processor(nodejs on Google V8)
Persistent Data Store(PostgreSQL RDBMS) Firewall
(optional)
http(s) REST protocol(on standard ports 80 or 443)
JSON content
ConCORDEConCORDE
ConCORDEConCORDE
ConCORDEConCORDE
ConCORDEConCORDE
DST(Domain Specific Tool)
OCDT Server OCDT Clients
Domain 1
Domain 2
Domain 3
Domain N
ESA-CDF NEW current solution:Open Concurrent Design Tool (OCDT)
CDF Info Pack 2015| Slide 22 ESA UNCLASSIFIED Releasable to Public
Database
ECSS-E-TM-10-23&25 Approach:Standards and Tool Implementations
Semantic Data Model Standard
Semantic Data ModelMaster Definition of Concepts
addresses what not how
Derived Logical and Physical Data Models
Reference Data Libraries (RDLs) Runtime loadable predefined objects,
including QUDV and Categories
Software Implementations
ToolTool
Tool
DatabaseDatabase
Automated transformations
Interoperable tools and databases
(including adapters around existing tools)
Generated
Runtime use
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CDF Info Pack 2015| Slide 23 ESA UNCLASSIFIED Releasable to Public
OCDT and IDM Differences (1/2)
IDM OCDT
Data Exchange Save & Close Workbook Data Exchange pulls new values in New values available to all participants
Publications Domain owner submits values to Server Team Leader / SE publishes new Publication Values in new Publication available to all participants History of Iterations is kept
(model state at end of each Iteration is stored)
Owned Parameters in Outputs sheet Input Parameters in Inputs sheet
Parameters and ParameterSubscriptionsin Definitions view & worksheet
Fixed, numbered naming convention for architectural items and parameters
Any object has name and short name Any architectural item or parameter can be uniquely referenced by
short name path, e.g.:MySC.sm.str2.P_max\Cruise.On
short name path used as Excel cell-name for calculation sheets
CDF Info Pack 2015| Slide 24 ESA UNCLASSIFIED Releasable to Public
OCDT and IDM Differences (2/2)
IDM OCDT
Fixed naming and structure of decomposition levels System, Element, Equipment,
Instrument,
Configurable Categories and Rules in RDL, adaptable for family of applications Space missions Launchers Instruments System of systems
Support for options Option-specific architecture built by copy-
paste One workbook per Option
Support for options All Options defined in Definitions view Single-source modular definition of re-usable building
blocks Only configure differences per Option Automatically generate fully expanded architecture
worksheet for each Option in Domain workbook One worksheet per Option
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CDF Info Pack 2015| Slide 25 ESA UNCLASSIFIED Releasable to Public
Deorbit strategies
Future Telecomms
Payload &P/L accommodation
ROSITA instrument on Columbus External Platform
ISS Internal Payload Science Requirements Definition
IMPACT facility inside an ISS rack
Socrates
Hea
vy L
ift
Laun
ch V
ehic
le
Advanced launchers Clean Space and Future Programmes
Telescopes and Technology
FIRI
WiFLY
Diverse range of space missions
Sentinel
ExoMars
Laplace
CDF Info Pack 2015| Slide 26 ESA UNCLASSIFIED Releasable to Public
System of Systems architecture
System of Systems (SoS) studies involve different participants and tools but are still carried out in a concurrent environment.SoS should be distinguished from large but monolithic systems by the independence of their elements, their evolutionary nature, emergent behaviours, and a geographic extent that limits the interaction of their elements to information exchange.
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System of Systems Architecture Activities Evaluated set of architectures (based on customer preferences/priorities) Identification of potential additional service(s)
CDF Info Pack 2015| Slide 28 ESA UNCLASSIFIED Releasable to Public
CDF layout
Meeting RoomAnnex Design Room
Lobby
Design Room B
Printer RoomCoffee Room
Archive Room
Server Room
Design Room A
Projection Room
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ESA-CDF FacilityRoom A
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ESA-CDF FacilityRoom A
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17 Concurrent Design Centres inEuropean Space Sector
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legendAgencyIndustryUniversity
The Netherlands CDF at ESA/ESTEC, Noordwijk
United Kingdom CDF at Univ. of Strathclyde, Glasgow SDO at EADS/Astrium, Stevenage CDF at Univ. of Southampton, Southampton CDF at Harwell Institute, Oxford Germany
CEF at DLR, Bremen SDO at EADS/Astrium, Friedrichshafen
Italy COSE at Thales Alenia Space, Torino ISDEC at Thales Alenia Space, Roma CDF at La Sapienza Univ., Roma CEF at ASI, Roma
Portugal CDF at Univ. Tcnica de Lisboa, Lisbon
Switzerland CDF at EPFL, Lausanne
France CDF at ISU, Strasbourg PASO at CNES, Toulouse SDO at EADS/Astrium, Toulouse CDF at Thales Alenia Space, Cannes
CDF Info Pack 2015| Slide 32 ESA UNCLASSIFIED Releasable to Public
Agencies (Europe)
CNES CIC Inauguration Nov. 2005
DLR (Bremen) CEFInauguration 8 Dec. 2008
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CDF Info Pack 2015| Slide 33 ESA UNCLASSIFIED Releasable to Public
Agencies (Europe)
ASI CEFopening 13 July 2008
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Agencies (USA)
NASA-JPL PDC Team X
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Industry (Europe)
EADS ASTRIUM (D) - SDO (Satellite Design Office)
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Industry (Europe)
TAS-I & F (Turin, Rome, Cannes) - CDF
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Academia
MelbourneAustralia
Victorian Space Science Education Centre
(VSSEC)
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Academia
ISU CDF
EPFL
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Further information
Provided on the CDF Web site:http://www.esa.int/cdf
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