1.1.1 INCOSE Model
Fundamentals of any systems approach Basic steps in the systems process
INCOSE (International Council on Systems Engineering) defines systems engineering as an interdisciplinary approach and means to enable the realization of successful systems. It focuses on defining customer needs and required functionality early in the development cycle, documenting requirements, then proceeding with design synthesis and system validation while considering the complete problem:

Cost & Schedule
Training and support

Systems Engineering integrates all the disciplines and specialty groups into a team effort forming a structured development process that proceeds from concept to production to operation. Systems Engineering considers both the business and the technical needs of all customers with the goal of providing a quality product that meets the user needs
INCOSE provides several frameworks for system engineering models.
  • Fundamental components on any good systems engineering model
  • The basis steps in any good systems engineering process
Fundamentals of any systems approach
Any systems engineering approach has several fundamental approaches, including:
Technical management
  • Planning
  • Assessment
  • Control
Acquisition and supply
System design
  • Requirements definition
  • Solution definition
Product relaxation
  • Implementation
  • Transition
Technical evaluation
  • Systems analysis
  • Requirements validation
  • Systems verification
  • End products validation
Basic steps in the systems process
The INCOSE model contains several basic steps. These steps are not phases but rather are processes performed concurrently.
Define the systems objectives
Establish the functionality
Establish the performance requirements
Select a baseline
Evolve the design and operational concepts
Verify that the baseline meets the requirements
Iterate the process through lower level trades