BAE SYSTEMS & ALENIA MARCONI SYSTEMS.ppt

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1. BAE SYSTEMS
Overview of
Systems Engineering
at
BAE SYSTEMS & ALENIA MARCONI SYSTEMS
09/14/24/MS115-01
By
Leigh Watton
Friday 27th July 2001

2. BAE SYSTEMS
WOOLLY BIT
The Total Engineering
Process Currently
Includes :
Project
Manager
Customer
With Money
And
Perceived Need
Customer
With
Expectation
Product
ManufactureDetail Design
The Woolly Bit

3. BAE SYSTEMS
The total complexity of
the system exceeds
one person’s ‘Brainful’
Complexity
Scale
Width

4. BAE SYSTEMS
The Concept of Left Shift

5. BAE SYSTEMS
£
Cost
of
Changes
Production Stage
specifications
drawings
interface specs
test specs
schedule
procurement specs
purchase orders
packaging
test equipment
tooling
reviewing
design proving tests
operational trials
EMC tests
environmental trials
cost estimates
simulation and modelling
component selection
reliability assessment
safety assessment
design certificates
pink wire mods
configuration management
TimeDesign Stage
concept design
plans/strategies
estimates
requirements
analysis/modelling
Late Changes => Bigger Impact

6. BAE SYSTEMS
Systems Engineering Generic Activity Sequence (SEGAS)
RBD FBD SBD PD DD
Customer
Acceptance
TRRSRR FDR SDR PDR CDR
Imp T&I A&C
FCA
PCA
3A 3B 4 5,6,7
Typical Phase Review correspondence
for a development programme

7. BAE SYSTEMS
System / Sub-System Interaction
SYSTEM
REQUIREMENTS
RBD FBD SBD PD DD P
INTEG
OF
SUB-
SYS T&I A&C
FCA
PCA
FULL
TRR
PRELIM
TRR
SUB-SYSTEM
REQUIREMENTS
PDR CDR
HIGHER LEVEL CONTAINING SYSTEM
DELIVER
SYSTEM
SYSTEM
Imp
M
SUB-SYSTEM
COMPONENTS
SRR FDR SDR PDR CDR
RBD FBD SBD PD DD P T&I
FCA
PCASRR SDR PDR CDR
SUB/
SYST
TRR
A&C
DELIVER
SUB-SYSTEM
Imp
FDR
M

8. BAE SYSTEMS
The Basic RFS Loop
System Analysis
& Control
(Balance)
Requirements Loop
Design Loop
Verification
Requirements
Analysis
Functional Analysis
and Allocation
Design Synthesis
Process Input
- Requirements
Process Output
- System Architecture
- Specs and Baseline
System
Analysis and
Control

9. BAE SYSTEMS
The Core Design Process - 1
R F
S
S = C + D
Customer
Requirements
System Requirements
Specification
System Requirements
Specification
System Functional
Structure
System Response
Specification
Sub System
Requirements
Specifications
System
Acceptance
Specification
Integration and
Test Specifications

10. BAE SYSTEMS
The Core Design Process - 2
R F
Cust Req
Sys Req Spec
Sys Req Spec
Sys Fun Struc
Sys Resp Spec
Sub Sys Req Specs
Sys Acc Spec
Int & Test Specs
Sys Req Spec
C D
Sys Fun Struc
Chosen Sol

11. BAE SYSTEMS
The Core Design Process - 3
R F
Cust Req
Sys Req Spec
Sys Req Spec
Sys Fun Struc
Sys Resp Spec
Sub Sys Req Specs
Sys Acc Spec
Int & Test Specs
Sys Req Spec
C D
Sys Fun Struc
Chosen Sol
Sol Concs
Sys Fun Struc
Concerns
Sol Concs

12. BAE SYSTEMS
• Concurrency reduces the risk all round
Bid
System Engineer/Design
Procure,
Manufacture
and Test
Deliver
Contract
Supra System
Engineer
Research
Maintain
Operate
Train
Accept
Procure
System(s)
In Service Use
(User)
Procure
(Customer)
Develop System
(Contractor)
Applied
Research
Risk
Mitigation
Feedback
Support
Replace or Upgrade
The Product Lifecycle

13. BAE SYSTEMS
Design and
Specification
Manufacture Parts
Integrate and Test
TIME
L
E
V
E
L
The ‘V’ Diagram

14. BAE SYSTEMS
The ‘V’ Diagram - cont
Tested and
Partially-Proven
System
Accept
Validated System
and Sub Systems
Customer Equipment and
Operational Environment
Customer's
Development
Activities
System
Engineering
Activities
Trials
Integrate with
Customer's
Equipment
Integrate
and Test
System
Response
Specification
and Drawings
System Reqts Spec
Sub System Reqts Spec
Response
Specification
and Drawings
TIME
L
E
V
E
L
Customer Equipment and
Operational Environment

15. BAE SYSTEMS
The ‘V’ Diagram - cont
Tested and
Partially-Proven
Sub System
Tested and
Partially-Proven
System
Accept
Validated System
and Sub Systems
Customer Equipment and
Operational Environment
Customer's
Development
Activities
System
Engineering
Activities
Sub System
Engineering
Activities
Trials
Integrate with
Customer's
Equipment
Integrate
and Test
System
Integrate
and Test
Sub Systems
Response
Specification
and Drawings
Response
Specification
and Drawings
Building Block Reqts Spec
System Reqts Spec
Sub System Reqts Spec
Response
Specification
and Drawings
TIME
L
E
V
E
L
Customer Equipment and
Operational Environment

16. BAE SYSTEMS
The ‘V’ Diagram - cont
Detail Drawings and Plans
Tested and
Partially-Proven
Building Blocks
Tested and
Partially-Proven
Sub System
Tested and
Partially-Proven
System
Accept
Validated System
and Sub Systems
Customer Equipment and
Operational Environment
Customer's
Development
Activities
System
Engineering
Activities
Sub System
Engineering
Activities
Design
Building
Blocks Test
Building
Blocks
Trials
Integrate with
Customer's
Equipment
Integrate
and Test
System
Integrate
and Test
Sub Systems
Response
Specification
and Drawings
Response
Specification
and Drawings
Building Block Reqts Spec
Response
Specification
and Drawings
System Reqts Spec
Sub System Reqts Spec
Response
Specification
and Drawings
TIME
L
E
V
E
L
Customer Equipment and
Operational Environment

17. BAE SYSTEMS
The ‘V’ Diagram - cont
Detail Drawings and Plans
Building
Blocks
Tested and
Partially-Proven
Building Blocks
Tested and
Partially-Proven
Sub System
Tested and
Partially-Proven
System
Accept
Validated System
and Sub Systems
Customer Equipment and
Operational Environment
Customer's
Development
Activities
System
Engineering
Activities
Sub System
Engineering
Activities
Design
Building
Blocks
Produce
Building
Blocks
Test
Building
Blocks
Trials
Integrate with
Customer's
Equipment
Integrate
and Test
System
Integrate
and Test
Sub Systems
Response
Specification
and Drawings
Response
Specification
and Drawings
Building Block Reqts Spec
Response
Specification
and Drawings
System Reqts Spec
Sub System Reqts Spec
Response
Specification
and Drawings
TIME
L
E
V
E
L

18. BAE SYSTEMS
The smallest System shown is at 'Building Block' level (e.g. a circuit board),
made up from 'Components'
Sub Systems
System
Sub Systems
Units
Building Blocks
Components
System Hierarchy

19. BAE SYSTEMS
Concurrency
Highly serial, very little concurrency
Highly concurrent
•The steepness of the “V”
represents the level of
concurrency

20. BAE SYSTEMS
Refined Drawings
and Test
Equipment
The ‘W’ Diagram - cont System Specification and Manufacture
Detail Drawings and Plans
Accept
Validated System
Customer Equipment and
Operational Environment
Customer's
Development
Activities
System
Engineering
Activities
Sub System
Engineering
Activities
Design
Building
Blocks
Trials
Integrate with
Customer's
Equipment
Response
Specification
and Drawings
Response
Building Block Reqts Spec
System Reqts Spec
Sub System Reqts Spec
Produce
Building
Blocks
Test
Building
Blocks
Integrate
and Test
System
Integrate
and Test
Sub Systems
Specification
and Drawings
Response
Specification
and Drawings
Response
Specification
and Drawings
TIME
L
E
V
E
L
Produce
Building
Blocks
Test
Building
Blocks
Integrate
and Test
System
Integrate
and Test
Sub Systems
Specification
and Drawings
D
E
V
E
L
O
P
M
E
N
T
P
R
O
T
O
T
Y
P
E
S
P
R
O
D
U
C
T
IO
N
Refined
Drawings
and Test
Equipment
Refined
Drawings
and Test
Equipment
Refined Detail
Drawings and Plans
Production
Acceptance
Deliver
Systems

21. BAE SYSTEMS
ProductionProduction
DevelopmentDevelopment
Concept
Demonstrator
Concept
Demonstrator
In order to ‘gain hindsight’ early, a concept demonstrator is built
before main development, shown as a narrow V
The VW Diagram

22. BAE SYSTEMS
The Process Model and the ‘V’ Diagram
System Engineering
Process Model
Waterfall ‘V’ Diagram
Product
Hierarchy
Time
(process, product, time)

23. BAE SYSTEMS
System Engineering Process Models
‘V’ Diagram
It Applies at Each Level in the System Hierarchy
The Process Model is Recursive

24. BAE SYSTEMS
Prototype System
and Support Equipment
Plans
Other Engineering
Functions
(Project
Management,
Production,
Sub Systems etc.)
Stated
Requirements,
Acceptance
Agreement
Support,
Resources
Sub
System
Suppliers
Management Data,
Agreed Requirements and
acceptance criteria,
Plans,
Sub System Designs and
Material,
Design Proving Evidence,
Design Certificate
Test Equipment Requirements,
Plans
Test and
Support
Equipment
Suppliers
Customer
Company
Infrastructure
Sub System
Requirements,
Plans
Plans,
System Design
Procedures,
Support,
Management Data World
User
(Higher Level
Tests/Trials)
Constraints
Compliance
Evidence
Management Data,
Agreed Requirements and
acceptance criteria,
Plans,
System Design,
Design Proving Evidence,
Design Certificate
Facilities
Test
Records
Perform
System
Engineering
Project

Management Data,
Agreed Requirements and
acceptance criteria,, Plans,
Test and Support Equipment Designs
and Material, Design Proving
Evidence, Design Certificate
Notes
1. The diagram is schematic
only a few of the inputs
and outputs are shown.
2. Sub system suppliers may
be internal or external to
own company.
3. The interface to sub
system suppliers mirrors
that with the customer and
user when shown in detail.
Records
Support
System Engineering Context Diagram

25. BAE SYSTEMS
ACSECURE
ACCEPTANCE
AND
CERTIFICATION
SUB SYSTEM
ENGINEERING
AND
IMPLEMENTATION
TSUPPORT
HIGHER LEVEL
TESTS (TRIALS)
SYSTEM
TEST EQUIPMENT
PROVIDE
IN
SERVICE
SUPPORT
ISS
E
ACCEPTANCE
PROVIDE SPECIALIST DESIGN SUPPORTSS
PERFORM SYSTEM ANALYSISA
HARMONISE SUB SYSTEM
IMPLEMENTATIONS
H
START
FMANAGE SYSTEM ENGINEERINGM
DESIGN REVIEWS
CREATE CANDIDATE
SOLUTION CONCEPTS
C
A
PERFORM
FUNCTIONAL
ANALYSIS
F
IINTEGRATE
AND TEST
SYSTEM
DDESIGN SYSTEM
AND SPECIFY
SUB SYSTEMS
R
DETERMINE
REQUIREMENTS
SS
M
H
SE Process Model (Level 2)

26. BAE SYSTEMS
Perform
Functional
Analysis
F
Perform
System
Analysis
A
Determine
Requirements
R
M
Manage
System
Engineering
Create
Candidate
Solution
Concepts
Provide
Specialist
Design
Support
Integrate and
Test System
Perform System Engineering
Harmonise
Sub Systems
Implementations
Support
Higher Level
Tests(Trials)
C SS I AC
Design System
and Specify
Sub Systems
D H T
Secure
Acceptance
and
Certification
LEVEL 1
LEVEL 2
Provide
In Service
Support
ISS
Level 3
Level 4

27. BAE SYSTEMS
R
Specify and
Agree System
Requirements
Specify and
Agree System
Acceptance
Criteria
Determine Requirements
Prepare
for R
Capture
Requirements
R1 R2 R3 R4 R5
Identify required skills
and personnel
Select methods
and tools to manage
requirements
Produce plan, work
breakdown, and
programme
Produce cost
estimates
Establish points
of contact with
customer/user
organisation
1.1
1.2
1.3
1.4
1.5
Define Supra System
and interfaces
Define required functions
(see F2)
Determine
required performance
Determine constraints
on the system
Determine support
requirements
Determine cost,
numbers and timescale
Determine customer’s
selection criteria
Determine customer’s
requirements for
Design Proving
Determine non customer
requirements
Collect and collate
requirement data
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
Analyse requirements
data for completeness
Analyse functional
requirements
(see F2, F3)
Use modeling and
simulation to analyse
requirements
(see A)
Develop understanding
of requirements
Explore impact of
non-compliance
Refine requirements
Highlight risks
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Determine requirement
specification format
Produce requirement
specification
Demonstrate traceability
from higher level
specifications
Review, agree and
control requirement
specification
4.1
4.2
4.3
4.4
Determine conditions
for acceptance
Identify customer
supplied items
Produce system
acceptance specification
Review and agree
system acceptance
specification
5.1
5.2
5.3
5.4
Analyse
Requirements