Design detection is the science of how to recognize patterns arranged by an intelligent cause for a purpose. It is used in a number of scientific fields, including anthropology, archeology, forensic sciences, cryptanalysis and the search for extraterrestrial intelligence. An inference that certain cosmological and biological features of the natural world may be the product of an intelligent cause can be tested or evaluated in the same manner as scientists daily test for design in other sciences.
Advances in engineering design and similar concepts have resulted in design detection methods advancing such that many microbiologists and biochemists now feel that the detection of design in nature is evidence within itself to disprove evolution.
For example, Stephen C. Meyer, Senior Fellow of the Center for Science and Culture at the Discovery Institute, notes at idthefuture.com  the problem with limiting explanations to only "natural" causes: "Archaeologists routinely distinguish manufactured objects (e.g., arrowheads, potsherds) from natural ones (e.g., stones), even when the differences between them are very subtle. These manufactured objects then become important clues in reconstructing past ways of life. But if we arbitrarily assert that science explains solely by reference to natural laws, if archaeologists are prohibited from invoking an intelligent manufacturer, the whole archaeological enterprise comes to a grinding halt."