This means that creativity is an ongoing process of continual change and reaction. Expectations of continual process improvement and tracking customer satisfaction were made explicit. This approach closely resembles other total quality management or continual improvement process methodologies. Continual or heightened exposure can increase sensitivity. Permanent channels do not exist, due to lack of continual water flow. They all note the availability of mission records which allows for continual research and understanding. The ouroboros is a symbol of eternity and continual renewal of life. State exams are subject to continual improvement. This was part of their policy of the continual development and modernization of their output. Metals under continual cyclic loading can suffer from metal fatigue. Only the wealthy are able to acquire replacement bodies on a continual basis. Through continual reinvention, his influence broadened and extended. The Deluge, a 20-year period of almost continual warfare, marked the turning point in attitudes. All Marine Raiders are required to undergo continual language training. Despite royal prohibitions, relations remained strained from continual colonialist interference.