There are disclosed a system, a test module and a method for testing a network device. A rotating gantry rotates the detector heads around the subject collecting less than 360\xb0 of data, e. The community identifiers are also associated with keys to authenticate members of the community and to protect the privacy and anonymity of information exchanged between the members. The partially completed integrated circuit device also includes an etch stop layer overlying the surface region. A method of piecing the blocks to form the quilt top uses the pattern indicia to keep track of the position of each block in the decorative pattern, so that the pattern layout may be disassembled to facilitate sewing the blocks together.