Electrical networks are formed to produce an approximation of at least one desired performance characteristic, based on the recognition that fabrication variations introduce slight differences in electronic sub-networks which were intended to be identical. The infrastructure includes a backend phenomenon layer that provides high level abstractions to applications such that they can express their data and information needs in a declarative fashion and coordinate the data collection and processing activities for all applications. Word is represented by arrays am, am in {0, 1,. A second embodiment incorporates a flexible straw arrangement through a top of the tower portion. When a synchronization packet is sent, the first control logic forwards a first timestamp sample to the first processor. In this embodiment, a local check-in event is received when the user is within the user’s geographical local area and the cached check-in entries are posted so that they are now visible by the other users of the software application.