What does 5.6.6 require?

Those doing the system engineering controls all the technical budgets defined to the technical budget DRD and sets a margin policy that suits how mature the product is.

ECSS-E-ST-10C System Engineering General Requirements...

Other controls in Clause 5.6: System engineering integration and control – ECSS-E-ST-10C System Engineering General Requirements (2009 edition)

5.6.1 Define, plan and manage the integrated technical effort
5.6.2 Keep the system engineering plan aligned with the project schedule
5.6.3 Define the engineering data repository and electronic exchange interfaces
5.6.4 Control external and internal interfaces through specifications and interface control documents
5.6.5 Define the coordinate systems and the units system
5.6.7 Identify, assess and plan candidate technologies
5.6.8 Contribute engineering data and controls to risk management
5.6.9 Assess every change proposal and nonconformance technically and control agreed actions

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpoint All ECSS-E-ST-10C System Engineering General Requirements (2009 edition) controls