Transaction data is accessed that describes a plurality of transactions and includes a plurality of frames, with each frame describing a respective portion of a corresponding one of the plurality of transactions. A user-defined stitching definition is accessed that is related to a particular one of the plurality of transactions. Correlations between respective transaction portions described in the plurality of transaction frames are determined with a particular correlation between first and second transaction portions determined based on the user-defined stitching definition. A transaction path of the particular transaction is determined based at least in part on the particular correlation determined between the first and second transaction portions. The particular transaction includes the first and second transaction portions and the first transaction portion is determined to immediately precede the second transaction portion in the transaction path of the particular transaction based on the determined particular correlation.