SYSTEMS ENGINEERING Flashcards

1
Q

Successful organizations, large and small, need to think both

A

operationally and strategically

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Operational thinking relates to ___________________ operations

A

“business as usual”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Strategic thinking relates more to (lti, o, d)

A

longer term imperatives,
opportunities, and direction.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Gaps in organizational capability may be a problem because

A

Gaps prevent achieving strategic objectives
Gaps prevent exploiting opportunities
Gaps open potential threats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Examples of organizations and their capability gaps
(ICGM)

A
  1. Individuals with personal capability gaps
  2. Commercial businesses with business-related gaps
  3. Government organization with a gap in government services
  4. Military organization with a gap relating to military capability shortfalls
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Conceptual Design Steps
(D-Dst-Dsy-Csl-Csd)

A

C1. Define business needs and requirements/BNR

C2. Define stakeholder needs and requirements/SNR

C3. Define system requirements.

C4. Conduct system-level synthesis.

C5. Conduct System Design Review (SDR)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

C1. Define business needs and requirements (IESEF)

A

Identify stakeholders
Elicit needs
Scope system
Extract requirements
Finalize requirements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

T or F: Stakeholders involved in the early stages of conceptual design are generally limited to those who have a right to affect the system

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Stakeholders may include: MEMLUC

A

Management
Engineering/technical
Maintenance
Logistics
Users
Clients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Types of Constraints (BPED)

A

○ Business constraints
○ Project constraints
○ External constraints
○ Design Constraints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In eliciting business needs, (Dmgo-Ds-Dvc-Dlc)

A

Define mission, goals, objectives (MGO)
Develop scenario on system usage
Develop validation criteria
Define lifecycle concepts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It is important for business stakeholders to explain expectations on how the system will be (OADSD)

A

Operated
Acquired
Deployed
Supported
Disposed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When finalizing on business requirements

A

Update and record the Business Needs and Requirements (BNR)

○ Preliminary Lifecycle Concept Document (PLCD)
○ Business Requirements Specifications (BRS)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

C2. Define stakeholder needs and requirements. (DDF)

A

▪ Define stakeholder needs
▪ Define stakeholder requirements
▪ Finalize stakeholder needs and requirements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

C3. Define system requirements. (Erf-Praa-Dsy-Csr)

A

▪ Establish a requirements framework
▪ Perform requirements analysis and allocation
▪ Draft the System Requirements Specification (SyRS)
▪ Conduct System Requirements Review (SRR)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What question is asked to Determine functional/non-functional requirements

A

What does the system need to be able to
do?

16
Q

What question is asked to Define performance requirements?

A

○ What other characteristics are required

○ What other systems are involved

17
Q

What question is asked to Define verification requirements?

A

○ Have we built the system right?
○ Have we built the right system?

18
Q

C4. Conduct system-level synthesis. (DPCP)

A

▪ Draft System Requirements Specification
▪ Potential solutions are proposed against the SyRS
▪ Compliance level, options, and other information considered
▪ Preferred solution selected

19
Q

C5. Conduct System Design Review/SDR (RRTP)

A

▪ Review the proposed solution.

▪ Review the refined SyRS,

▪ the traceability back to the Stakeholder requirements Specification (StRS), and

▪ the planning that has been put in place to execute and manage the technical program

20
Q

Preliminary Design

A

Define the system elements

Perform requirement analysis and allocate requirements to the elements

21
Q

What are the sub-system options in preliminary design?

A

▫ Off-the-shelf (OTS)
▫ Modified off-the-shelf (MOTS)
▫ Developmental

22
Q

Advantages of OTS

A

Known function
Known performance
Availability
Known costs

23
Q

Disadvantages of OTS (TO)

A

Technical documentation
Obsolescence

24
Advantages of MOTS
Known function Known performance Availability Known costs
25
Disadvantages of MOTS (WSEDTC)
Warranty Support agreements Effort Detailed design data Time Cost
26
Advantage of Developmental option
Theoretically offers a perfect match to requirements
27
Disadvantages of Developmental option (LTTC)
Lifecycle Issues Through-life support Time Cost
28
Steps in Preliminary Design
▪ Iterate to make optimal use of any design space in sub-system design ▪ Finalize the preliminary design ▪ Conduct a design review establishing the subsystem level design requirements
29
In detailed design, there will probably be elements of our solution that need to go through detailed design activities:
▫ Developmental elements of the design ▫ OTS items that need to be modified ▫ Elements of the design that need to be integrated together ▫ Development of the fabrication process and materials
30
The aim of detailed design is to:
finalize design so that the solution is ready for construction and production
31
When we think about what needs to be achieved during detailed design
▫ Design the items so that meet their relevant specification ▫ Ensure items can integrate to next higher level of assembly