The invention concerns a method for automatically adapting a computer program product to an environment, the computer program product comprising executable parts and data parts, the method comprising the steps of configuring the computer program product for the environment and executing the software in the environment. Furthermore the method comprises the steps of observing effects of the execution, i.e. metering the behavior, of the executable parts, analyzing the inter-relation of the observed effects with the software, and modifying executable parts based on rules in order to reduce undesirable observed effects like in-efficiency or failure. The present invention relates also to the automatically adapting computer program product, and a method for manufacturing the automatically adapting computer program product.