Difference between Action & Function, Analog Recording & Low level Recording,Mandatory & Assistive properties in QTP

Difference between Action and Function

Functions give only one output value 

Action gives more output values but functions are very consistency than actions

Difference between Analog Recording and Low level Recording

Analog recording is done when context recording is failed (when recording includes diagrams, or signature which are non-standard objects).In case of low-level recording we can it can record both standard and non-standard objects

Analog recording is done when we have to capture the Exact movement of mouse or it is required to test a page with respect to the full screen low level recording is usually carried out when qtp does notrecognise the object

Difference between Mandatorily properties and Assistive properties

Mandatory properties identify the objects in at a time same like working in assistive properties one main difference is mandatory properties is stored the data in object repository with showing the property list and values, but assistive property stored the data in secret place.