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. 11. The system of claim 8 , wherein the step of performing the second iteration includes the step of determining, for each of the one or more origin classifications in the set of origin classification over which the second iteration iterates, whether the origin classification has a set of classification markings that, according to the translation map, can be translated to a set of classification markings based on the classification scheme used by the second database.