Systems Engineering Chapter 1

Systems Engineering

The function of guiding the engineering and development of complex systems.

System

A set of interrelated components working together toward a common objective.

Complex System

An engineered system with diverse, intricately related elements requiring systems engineering.

Concept Development

The formative stage of new system development, leading to functional design.

Interfaces

Boundaries where system components connect physically and functionally; managed by systems engineers.

Interactions

The functional relationships between system components across interfaces.

Functional Allocation

Dividing a system into modular building blocks with assigned functions.

Agile Systems Engineering

Designing systems and processes to be adaptable, resilient, and scalable in uncertain environments.

Model-Based Systems Engineering (MBSE)

Use of modeling languages and tools to represent, analyze, and manage system information instead of relying on documents.

Document-Intensive Systems Engineering (DISE)

Traditional approach relying on text-based documents rather than integrated models.

Systems Engineering Viewpoint

Focus on the total system and its mission, balancing performance, cost, schedule, and risk.

Trade-offs

Balancing competing system attributes (e.g., performance vs. cost, schedule vs. risk).

System of Systems

A collection of independent systems that interact to create a more complex capability.

Life Cycle Development

The full process of system creation, from concept to disposal, guided by systems engineering.

Risk Management

Identifying, assessing, and mitigating risks, particularly when applying new technologies.

Verification and Validation (V&V)

Ensuring the system is built correctly (verification) and meets user needs (validation).

Concept of Operations (CONOPS)

A document describing how a system will be used to meet stakeholder needs.

Traceability

The ability to link requirements through design, development, and testing to ensure completeness.

Opportunity Assessment

Early evaluation of potential system solutions in relation to needs and environment.

INCOSE (International Council on Systems Engineering)

Professional society for systems engineers that provides standards, guidance, and vision.

“V” Model

A systems engineering process model that shows relationships between requirements definition and verification/validation.

Spiral Model

A systems engineering life cycle model emphasizing iterative development and risk management.

Waterfall Model

A linear life cycle model with sequential phases of system development.

System Effectiveness

A measure of how well a system meets operational goals, including reliability, maintainability, and usability.

T-Model for Career Development

A career growth framework for systems engineers combining broad technical knowledge with deep expertise in at least one domain.