Embodiments of the invention provide techniques for troubleshooting of computer systems using a fault tree analysis. While the leg portions for mounting and engagement portions are being inserted through, the mark is mounted in a recess portion of a pad cover. The selection of polyols permits cycle times to be reduced by allowing for faster demolding and shortened aging times before post-molding heat lamination steps can be performed. The mapping server is coupled to the arbiter server and to the socket servers for bidirectional communication with the arbiter server and each of the socket servers. Also, the receiver can model any geometric distortion undergone by the input signal between the embedder and the receiver. Thus, Joule heat is generated at the contact portion between the bottom of the outer case 16 of the unit cell 10a and the positive polarity terminal 18 of the unit cell 10b so that the contact portion melts.