8. A computer system comprising: one or more first computing devices operatively coupled to a first database; one or more second computing devices operatively coupled to a second database; one or more first non-transitory computer-readable media storing instructions which, when executed by the one or more first computing devices, cause the one or more first computing devices to perform the steps of: obtaining a classification to be exported from the first database; wherein the classification has a set of one or more classification markings and a set of one or more origin classifications; generating a new origin classification; wherein the new origin classification includes the set of one or more classification markings; adding the new origin classification to the set of one or more origin classifications to produce a new set of a plurality of origin classifications; wherein the new set of origin classifications includes the new origin classification; exporting the classification as export data; wherein the export data includes the new set of origin classifications; and one or more second non-transitory computer-readable media storing instructions which, when executed by the one or more second computing devices, cause the one or more second computing devices to perform the steps of: obtaining the export data; wherein the export data is obtained as part of other export data that represents an update to an access control list in the first database; obtaining, from the second database, first version information representing a version of the access control list in the second database after an update to the access control list in the second database; obtaining, from the other export data, second version information representing a version of the access control list in the first database after the update to the access control list in the first database; determining that the update to the access control list in the first database happened after the update to the access control list in the second database based on a comparison between the first version information and the second version information; performing a first iteration over the new set of origin classifications; completing the first iteration; in response to completing the first iteration, performing a second iteration over one or more origin classifications in the new set of origin classifications; completing the second iteration upon identifying a first origin classification, in the new set of origin classifications, having a first set of one or more classification markings that, according to a translation map, can be translated to a second set of classification markings based on a classification scheme used by the second database; and importing a classification into the second database, the classification imported into the second database having the second set of classification markings.
8. A computer system comprising: one or more first computing devices operatively coupled to a first database; one or more second computing devices operatively coupled to a second database; one or more first non-transitory computer-readable media storing instructions which, when executed by the one or more first computing devices, cause the one or more first computing devices to perform the steps of: obtaining a classification to be exported from the first database; wherein the classification has a set of one or more classification markings and a set of one or more origin classifications; generating a new origin classification; wherein the new origin classification includes the set of one or more classification markings; adding the new origin classification to the set of one or more origin classifications to produce a new set of a plurality of origin classifications; wherein the new set of origin classifications includes the new origin classification; exporting the classification as export data; wherein the export data includes the new set of origin classifications; and one or more second non-transitory computer-readable media storing instructions which, when executed by the one or more second computing devices, cause the one or more second computing devices to perform the steps of: obtaining the export data; wherein the export data is obtained as part of other export data that represents an update to an access control list in the first database; obtaining, from the second database, first version information representing a version of the access control list in the second database after an update to the access control list in the second database; obtaining, from the other export data, second version information representing a version of the access control list in the first database after the update to the access control list in the first database; determining that the update to the access control list in the first database happened after the update to the access control list in the second database based on a comparison between the first version information and the second version information; performing a first iteration over the new set of origin classifications; completing the first iteration; in response to completing the first iteration, performing a second iteration over one or more origin classifications in the new set of origin classifications; completing the second iteration upon identifying a first origin classification, in the new set of origin classifications, having a first set of one or more classification markings that, according to a translation map, can be translated to a second set of classification markings based on a classification scheme used by the second database; and importing a classification into the second database, the classification imported into the second database having the second set of classification markings. 9. The system of claim 8 , wherein the step of completing the first iteration includes the step of determining that none of the origin classifications, in the set of one or more origin classifications, has a classification scheme identifier matching a classification scheme identifier of the classification scheme used by the second database.