1. A method comprising: migrating a Cartesian coordinate-based view to a tag field-based view, wherein the Cartesian coordinate-based view and the tag field-based view are user interfaces for presenting the same information, and said migrating comprises selecting a tag field-based view, wherein the selected tag field-based view comprises one or more applets, and the selected tag field-based view is configured to serve as a model for converting the Cartesian coordinate-based view into the tag-field based view, identifying a first applet of the one or more applets, wherein the first applet comprises one or more controls, associating the first applet with a tag field-based template for the first applet, wherein the tag field-based template for the first applet comprises one or more characteristics of each of the one or more controls, and the tag field-based template for the first applet is configured to serve as a model for converting a Cartesian view applet in the Cartesian coordinate-based view to a corresponding tag-field based applet, associating the tag field-based template for the first applet to a corresponding first Cartesian view applet in the Cartesian coordinate-based view, wherein the first Cartesian view applet comprises a Cartesian view control, converting the Cartesian view control to produce a corresponding tag field-based view control, wherein said converting matches the Cartesian view control with characteristics of the one or more controls in the tag field-based template for the first applet, mapping the corresponding tag field-based view control to the selected tag field-based view.