1. A database system comprising: at least one database storing a plurality of data objects; and at least one server operable to cause: providing user interface data to a client machine, the user interface data capable of being processed by the client machine to display on a display device of the client machine a user interface providing at least one call center service, the user interface capable of presenting a plurality of session tabs and a plurality of application tabs, a first one of the session tabs having a parent-child relationship with at least one first application tab presentable within the first session tab; retrieving, from a database, customer data associated with a customer, the customer data comprising at least: account data of an account data object maintained for the customer in the database, and child data maintained in the database; providing the retrieved customer data to the client machine, the customer data capable of being processed by the client machine to display in the user interface the account data in association with the first session tab and to display in the user interface the child data in association with a first application tab; receiving, from the client machine, edited data indicating at least one modification to the child data; and designating, responsive to receiving the edited data, the first application tab as unsaved.