Abstract: A thread management system for implementation within a computer system having a database disposed to be accessed through queries provided by a system user is disclosed herein. In this environment the thread management system provides a mechanism for subsequent replication of a sequence of one or more of such queries made by the system user. In a preferred implementation, a first thread step object is generated upon a first of the queries being provided to the database. The thread step object is formed so as to include information relating to a first state of the database. A representation of the first thread step object is then presented to the system user via a display of the computer system. Upon the system user selecting the representation of the first thread step object, the first of the queries to the database is replicated. A second thread step object may be generated upon provision of a second of the queries to the database.