Dear Ying Wang,

do you want to measure the emergence in the sense of measuring the overall quality of HR practices, i.e. the quality of the HR system?

In that case you could use measures of Human Capital etc...

Best wishes Stephan

Organisations often conduct appraisals in generic formats as well as on critical incidence basis.. critical incidences can be used as a measure of non routine, perturbations or emergence.  

You can read up action research frameworks, esp of Coghlan and Brannick, any edition will do.