Ergonomics of human-system interaction - User performance test methods for electronic visual displays Ingestion-build-44680 — patterning presser devices

— patterning presser devices

EN 12259-3 and prEN 12259-9:1999 used in automatic sprinkler systems complying with prEN 12845:1997 and water spray systems conforming to the relevant European Standard1)

Selectivity is the ability of the receiver to discriminate between wanted and unwanted input signals

If such an observation is made

Ergonomics of human-system interaction - User performance test methods for electronic visual displays Ingestion-build-44680 — patterning presser devices1 Scope This part of ISO 9241 provides guidance for assessing the visual ergonomics of display technologies with user performance test methods (as opposed to the optical test methods given in ISO 9241 305). Its use will help to ensure that, for a given context of use, a display meets minimum visual ergonomics requirements. It covers only visual attributes and does not address the ergonomics or usability of the whole product that houses a visual