| 主权项 |
1. A method, comprising:
receiving a plurality of data sets, each data set including a customer identifier field, the customer identifier field specifying a unique customer identifier associated with each entry in each data set, the plurality of data sets including a first group of data sets and a second group of data sets, each data set associable with each other data set based on the customer identifier; storing the plurality of data sets; generating a key map including the customer identifier field and an anonymous identifier field, the customer identifier field for the key map including unique customer identifiers of the first group of data sets of the plurality of data sets, the anonymous identifier field including unique anonymous identifiers, each anonymous identifier corresponding to a customer identifier of the key map, each anonymous identifier different from its corresponding customer identifier; storing the key map; rendering each data set of the second group of data sets as unassociable with each data set of the first group of data sets by replacing, based on the key map, each unique customer identifier in the second group of data sets with the corresponding anonymous identifier, further including rendering each data set of the second group of data sets associable with each other data set of the second group of data sets based on the anonymous identifier; and deleting the key map. |
