Methods, systems and computer program products are provided for providing transactional quality of service providing transaction service level information from an application requesting a data transmission transaction to a communication process executing on a data processing system. The compound V can be directly N-alkylated at the 8a-position using an aldehyde without being isolated from the reduction mixture. The resolver can provide high detection accuracy and be low in cost. This self refinement process of discriminative feature identification and cluster label voting is iteratively applied until the convergence of document clusters. Once a clock count limit is reached, the software disables the hardware in one or more prescribed ways, such as a reset of one or more registers, a global tri-state of the hardware 10, or a random failure of some type. Lockingunlocking of the center tappet and each side tappet is performed in a position which is in a vertical plane including a center axis of each side tappet and intersecting perpendicularly to an axial direction of a camshaft and is offset from the center axis of the side tappet.