===== 5.3 Ownership =====

An ****export**** file is owned by the entity that owns the package it represents. The owner of a package defines the API of that package, and may or may not provide all implementations of that package. All implementations, however, must conform to the definition provided in the ****export**** file provided by the owner. 

A particular example of ****export**** file ownership is the Java Card API packages. Sun Microsystems, Inc. defines these packages. Sun Microsystems, Inc. also provides the ****export**** files for these packages. All implementations of the Java Card API packages must conform to the definitions provided by Sun Microsystems, Inc., and comply with the token assignments provided in these ****export**** files.