1. An information processing system comprising: a memory area storing computer-executable instructions for generating a common data repository including a plurality of documents that include transcripts from customer service calls; and a processor configured to execute the computer-executable instructions to: identify a plurality of topics including customer service issues by analyzing the plurality of documents; based on the plurality of identified topics, classify the plurality of documents into a plurality of sets, a first set of the plurality of sets associated with a first topic of the plurality of topics; identify via inter-set comparisons, one or more correlations between a first document classified into the first set and another document of the plurality of documents classified into a second set of the plurality of sets, the second set being associated with a second topic of the plurality of topics; based on the one or more identified correlations, generate a taxonomy tree; convert at least the first topic and the second topic of the plurality of topics into a structured knowledge article having a predetermined format of patterns based on the generated taxonomy tree; and generate one or more tools including an interaction script associated with at least the first topic of the plurality of topics based on identification of one or more of the patterns from at least the first document and the other document to improve a transactional efficiency of a user interaction.