A system for handling a transaction for a client service center comprising only one interface configured to communicate with a plurality of data stores to access data, interact with a user via a single screen device, and display one at a time on the single screen device a plurality of subsequent and dependent screen views to enable the user to view the data and implement a sequence of steps selected by the user to complete a transaction, wherein the interface does not display and does not notify the user of access to data on the different data stores, and wherein the screen views are displayed in a determined order based on the transaction and the steps selected by the user to reveal the data and the steps in a hierarchical manner from more general data and steps to more detailed and dependent data and steps.