Change CLM-WAS to CLM-Tomcat
One answer
This is covered in the product documentation: http://www-01.ibm.com/support/knowledgecenter/SSCP65_5.0.0/com.ibm.jazz.install.doc/topics/t_migrate_tohmcat_was.html the approach is the same for all applications.
While you can upgrade and migrate in one go, I would suggest to do one step at a time and test it worked successfully.
While you can upgrade and migrate in one go, I would suggest to do one step at a time and test it worked successfully.