SG 1 Develop Customer Requirements
SP 1.1 Elicit Needs
SP 1.2 Develop the Customer Requirements
SG 2 Develop Product Requirements
SP 2.1 Establish Product and Product Component Requirements
SP 2.2 Allocate Product Component Requirements
SP 2.3 Identify Interface Requirements
SG 3 Analyze and Validate Requirements
SP 3.1 Establish Operational Concepts and Scenarios
SP 3.2 Establish a Definition of Required Functionality
SP 3.3 Analyze Requirements
SP 3.4 Analyze Requirements to Achieve Balance
SP 3.5 Validate Requirements