The story is two missing parts in the update HEAT feature The scenario: User uploaded HEAT, worked on questionnaire, uploaded a new HEAT. Original requirement - To keep data for any Component that was not changed - working fine To delete data of any component no longer exists - partially working. What is missing is to clean component dependency - so any dependency that includes a removed component should be deleted. For example A depends on B - if either A or B were removed, the dependency must be removed as well To keep all data of VSP level - not working well we should not delete this data at all and not delete and then add it as probably currently done - although the outcome is the same, it is important in collaboration environment to keep the behaviour correct except to network which is coming from HEAT