"PeopleTools" is the underlying technology the PeopleSoft applications are written in. The PeopleTools are supplied with the application, giving the ability to customise and add new functionality to the delivered PeopleSoft application.
PeopleTools run a variety of platforms - operating systems (including both Windows and major Linux flavours are supported) and database systems (for example, Oracle and SQL Server).
Amongst the two tier PeopleTools are:
PeopleTools supplied within the Web application:
Data Migration Workbench
Miscellaneous Fixes and Solutions
Clearing the PeopleSoft Cache
PeopleSoft Regular Expressions
Detecting PeopleTools Changes
PeopleTools Wish List