Organisations having used different bug tracking tools have a requirement of migration of their existing data to jira. This is one important aspect of jira implementation and happens in many business cases.
Almost always, the tool being used is not known to jira and even if it has an integration, data migration needs to be provided as a service. Equest has many years of experience of data migration. Over years we have migrated from different defect bug tracking tools to jira successfully. JIRA defect tracking or jira bug tracking benefits are enhanced once the data is included.
This is a service that requires analysis of parent schema and cycle and defining test conditions and then writing plugins for the same. All migrations go through multiple levels of testing and analysis