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Shearing layers
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<p>Shearing layers is a concept coined by architect <a href="/facts/Frank_Duffy_(architect)/ReQscvVI">Frank Duffy</a>, which was later elaborated by <a href="/facts/Stewart_Brand/BCSscDzA">Stewart Brand</a> in his book, <i><a href="/facts/How_Buildings_Learn/06d4r7lT">How Buildings Learn: What Happens After They're Built</a></i> (Brand, 1994), and refers to buildings as composed of several layers of change. The concept has been adopted by a number of technology vendors to also describe the different layers of systems within an organisation. </p>