A software product possesses the characteristic security to the extent that it is able to protect data against unauthorized access and to withstand malicious interference with its operations. Besides presence of appropriate security mechanisms such as authentication, access control and encryption, security also implies reliability in the face of malicious, intelligent and adaptive attackers. 58. Acceptance Testing In engineering and its various subdisciplines, acceptance testing is black-box testing performed on a system (e.g. software, lots of manufactured mechanical parts, or batches of chemical products) prior to its delivery. In some engineering subdisciplines, it is known as functional testing, black-box testing, release acceptance, QA testing, application testing, confidence testing, final testing, validation testing, usability testing, or factory acceptance testing.
[people]." Ultimately, it may be the knowledge of the good that is most threatened by all of our other advances. All things considered, it is possible that we are becoming more ignorant of the things we must know to live well and sustainably on the Earth. A fourth myth of higher education is that we can adequately restore that which we have dismantled. In the modern curriculum we have fragmented the world into bits and pieces called disciplines and subdisciplines. As a result, after 12 or 16 or 20 years of education, most students graduate without any broad integrated sense of the unity of things. The consequences for their personhood and for the planet are large. For example, we routinely produce economists who lack the most rudimentary knowledge of ecology. This explains why our national accounting systems do not subtract the costs of biotic impoverishment, soil erosion, poisons in the air or water, and resource depletion from gross national product
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