PaceMaker was conceived to solve the business problems experienced in the Financal Services industry: Silo systems each with its own unique key and data model of a transaction, with no single system having an holistic view of the business transaction as it progresses though the business.  

However, there is nothing inherently financial about the PaceMaker architecture, it has no dependency on the data it is monitoring (or the underlying data model) and so can track any business activity across any set of transaction systems. PaceMaker is particularly suitable for transaction flows that extend outside an organization, where external events must be matched and correlated to internal views of the same transaction.