[ Your Name ] would like to inform you about this article on Complexity Digest 2008.20 - 17 http://comdig.unam.mx/index.php?id_issue=2008.20#30151 15-May-2008 [ Your Message ] PDF files of our annual editions are available at http://www.comdig.de/AnnualEditions.html A letter from Gottfried Mayer to our readers and friends is at http://www.comdig.de/GMLetter.html Concept and Definition of Complexity, arXiv Abstract: The term complexity is used informally both as a quality and as a quantity. As a quality, complexity has something to do with our ability to understand a system or object -- we understand simple systems, but not complex ones. On another level, complexity is used as a quantity, when we talk about something being more complicated than another. In this chapter, we explore the formalisation of both meanings of complexity, which happened during the latter half of the twentieth century. Source: Concept and Definition of Complexity[ http://uk.arXiv.org/abs/0805.0685 ], Russell K. Standish, DOI: 0805.0685, arXiv, 2008/05/06 You can discuss this article on Articles Forum http://comdig.unam.mx/topic.php?id_article=30151