Content Migration Manager > User's Guide (CMM 1899 Series, Jan 2020) > Part II: General migration process > 7. Best practices
What to migrate
Do not assume that all models need to be migrated with all features. Migrate parts with features if they need to be modified in NX. Migrate parts as a B-Rep if they either will not be modified in NX, or if Synchronous Modeling commands can be used to make changes. Part features do not need to be migrated in order to maintain associativity for drawings, assembly constraints, etc. These entities are associated to part edges and faces; not to features. Parts to be migrated with features should be tested to make sure they replay cleanly in the source CAD system.
Best practices
Source: CMM 1921 download (Support Center PL20201112075217794, CMM1921.7z), NXMigration/Documentation/cmm_1921.pdf, page 69 · retrieved 2026-10-02