1. A system for providing a graphical interface to a user, comprising: a server platform and an operating system and application software running thereon; wherein the server platform and the application software are configured to allow a client device capable of running a standard web browser that accesses the software application on the server platform to display information to the user in a display area on the client device, without requiring additional software to be installed or downloaded or run on the client device and without requiring a scripting language to be enabled in the web browser on the client device; wherein the application software is configured to (i) facilitate manipulation by the user of unstructured data in the display area for detailed inspection, wherein the unstructured data includes image data, wherein the manipulation includes at least one or more of panning, zooming, and rotating, of the unstructured data in the display area; and, (ii) facilitate the user selectively causing to display annotations within the display area, wherein the application software is configured to cause an action to occur in either this system or an external system upon the user selectively causing to display annotations within the display area, wherein the action comprises one or more operations selected from: applying a context-dependent indicator to the image data; initiating a business transaction relating to the unstructured data; approving a business transaction relating to the unstructured data; rejecting a business transaction relating to the unstructured data; initiating a payment for a business transaction relating to the unstructured data: canceling a business transaction relating to the unstructured data; communicating transaction information to the external system; receiving transaction information from the external system; and displaying a next work item to the user in the display area on the client device.