Section 18 of 83
17. Human Interfaces
Stable section ID: S05-CON-005-SECTION-18 · 24 content blocks
Human Interfaces govern interactions between System05 components and occupants, installers, inspectors, maintainers, engineers, emergency responders, and other authorized persons.
The design shall distinguish among user groups because each group has different knowledge, authority, risk exposure, and information requirements.
Human Interfaces may include:
handles and access points;
installation guides;
physical controls;
displays;
labels and markings;
audible and visual alarms;
maintenance panels;
inspection windows;
manual releases;
emergency controls;
digital applications;
augmented-reality instructions;
accessible machine-readable records.
Every control shall communicate its function, current state, permitted action, and consequence where ambiguity could create risk.
Critical status shall not rely exclusively upon color. Shape, position, text, symbols, sound, tactile indication, or digital confirmation shall be added as appropriate.
Access shall be controlled according to role. Occupants shall not be able to operate maintenance or engineering controls merely because those controls are physically reachable. Conversely, emergency responders shall be able to locate essential isolation and emergency information without unnecessary delay.
Manual operations shall define required force, range of motion, reach, visibility, clearance, posture, tool use, and protective equipment. Interfaces intended for public or occupant use shall consider applicable accessibility requirements.
Installation interfaces shall provide error-resistant guidance. Part orientation, engagement direction, locking state, and incompatibility shall be understandable without relying entirely upon lengthy external manuals.
Warnings shall not be used as substitutes for preventable design hazards. Physical keying, guarded access, interlocks, isolation, and safe-state behavior shall take priority where practicable.
Human actions affecting the verified engineering state shall be recorded. Examples include manual overrides, isolation, release of a structural lock, replacement of a Cartridge, alarm acknowledgment, and modification of configuration data.
Standard symbols, label hierarchy, accessibility profiles, maximum operating forces, and emergency-identification conventions remain TBD.