The document discusses the value chains in microTCA and ATCA standards. It outlines that value chains capture the added value at each stage from components to complete solutions. It then draws lessons from the PC industry value chain shift from proprietary to open systems. This led to a shift in value from system vendors to component vendors and declining system vendor margins. The document suggests microTCA and ATCA may see similar trends, which could displace some ATCA applications with more cost effective microTCA solutions.