Modifiers matching subsystem:

• societal,
• functional,
• several,
• relevant,
• auxiliary,
• single,
• autonomous,
• stock,
• individual,
• electrical,
• supporting,
• electronic,
• major,
• complex,
• cognitive,
• accessible,
• active,
• structural,
• organisational,
• mechanical,
• common,

Simple categories matching autonomous:

• system,
• subsystem,
• code,
• elements,
• agent,
• object,
• machine,
• explorer,
• task,
• action,
• entity,
• network,
• sector,
• vehicle,
• discipline,
• space,
• administration,
• organization,
• region,
• institution,
• program,
• unit,
• group,
• body,
• association,
• automobile,
• school,
• organisation,
• domain,
• software,
• equipment,