Various embodiments for protecting keyboard data inputted by a user in a computer having a keyboard hardware are disclosed. Digital images of at least some of the components specified by the input information are obtained and an image of the document is generated by combining the digital images of at least some of the components in a manner so as to simulate an appearance of the document were the document to be physically assembled according to the input information. Investment choices of a second set of the investment choices are within the particular asset class and have a performance factor value that may or may not be constrained by the performance factor value range of the first set, but may have a separate and distinct filter structure. They can be used in shaped articles. A method of installing a duct cover on a duct is further included.