<prompt> STEPS is the WHO recommended tool for -Surveillance of non-communicable disease and their risk factorsSurveillance of communicable diseases and their risk factorsSurveillance of socio-economic status of the communityChanges of trends of moality in non-communicable diseases  <response>: Parks textbook of preventive and social medicine 23rd edition The STEPS - the non communicable disease risk factors survey to help countries establish CMS surveillance system. It describes 3 steps: questionnaire, physical measurements and biochemical measurements. . 