1. A method of operating a user-interest driven launching pad of a mobile application, the method comprising: inputting metadata of a first data element and a second data element relating to a mobile device, wherein the first data element is a type of data used by a first application and the second data element is a type of data used by a second application, wherein the metadata is used to quickly search for data; forming a set of the first and second data elements having at least a common part of metadata; marking the set of the first and second data elements with a user-interest tag indicating the common metadata, the user-interest tag corresponding to the first and second data elements being determined by analyzing a history of applications of the first and second data elements; displaying the set of the first and second data elements by reference to the user-interest tag in response to a first user input selection of the user-interest tag; and executing the first application in response to a second user input selection of the first data element out of the displayed set and the second application in response to the second user input selection of the second data element out of the displayed set.