Abstract: A system and method for extracting process sequences from application data is provided. The method includes extracting process sequences from one or more applications' historical data in a non-intrusive manner. Firstly, data events in application data sources are read and then mapped to business activities. While reading the data events, a correlation identifier is identified which is later used to correlate business activities to create the process instance sequences. The system and method may be used to extract process sequences of multiple processes simultaneously. Process sequences may further be used for the purpose of mining processes from legacy systems for compliance checking solutions and for identifying how individual process instances are executed.