The list of industrial sectors and technical knowledge is a long one, and technical strategies for innovation must be conceived in technical detail. Technical opportunities occur at a level of much detail and complication in different sectors of different industries, and in different aspects of technologies in industrial sectors. We will now look what kinds of technologies are relevant to the different sectors. Technology improvement in a given sector depends on the kind of research performed in an industry. Such research effort is now called industrial research and development R&D