Adessowiki (http://www.adessowiki.org) is a collaborative environment for development, documentation, teaching and knowledge repository of scientific computing algorithms. The system is composed of a collection of collaborative web pages in the form of a wiki. The articles of this wiki can embed programming code that will be executed on the server when the page is rendered, incorporating the results as figures, texts and tables on the document. The execution of code at the server allows hardware and software centralization and access through a web browser. This combination of a collaborative wiki environment, central server and execution of code at rendering time enables a host of possible applications like, for example: a teaching environment, where students submit their reports and exercises on Adessowiki without needing to install special software; authoring of texts, papers and scientific computing books, where figures are generated in a reproducible way by programs written by the authors; comparison of solutions and benchmarking of algorithms given that all the programs are executed under the same configuration; creation of an encyclopedia of algorithms and executable source code. Adessowiki is an environment that carries simultaneously documentation, programming code and results of its execution without any software configuration such as compilers, libraries and special tools at the client side. Copyright © 2009 ACM. John Ernest FoundationKnuth, D.E., Literate Programming (1984) The Computer Journal, 27 (2), pp. 97-111Walsh, N., Literate Programming in XML, , http://nwalsh.com/docs/articles/xml2002, Oct. 2002J. B. Buckheit, D. L. Donoho. WaveLab and Reproducible Research. Dept. of Statistics, Stanford University, Tech. Rep. 474, 1995. http://wwwstat. stanford.edu/ donoho/Reports/1995/wavelab.pdfO'Reilly, T., What is Web 2.0 O'Reilly Media, , http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html, Sep. 2005Xiao, W., Chi, C.Y., Yan, M., On-line Collaborative Software Development via Wiki (2007) Proceedings of the 2007 International Symposium on Wikis, pp. 177-183. , ACM, San Diego, California, USAAguiar, A., David, G., WikiWiki Weaving Heterogeneous Software Artifacts (2005) Proceedings of the 2005 International Symposium on Wikis, pp. 67-74. , ACM, San Diego, California, USAMader, S., (2007) Wikipatterns, , Wiley, December 10Adrian Holovaty, Jacob Kaplan-Moss. The Definitive Guide to Django: Web Development Done Right. Apress. December 6, 2007Parker, K.R., Chao, J.T., Wiki as a Teaching Tool (2007) Interdisciplinary Journal of Knowledge and Learning Objects, 3, pp. 58-72Lotufo, R.A., Interactive DSP Course Development/Teaching Environment (1997) 1997/IEEE Intern. Conf. on Acoustics, Speech and Signal Processing, 1997, Munich. Proc. of 1997/IEEE Intern. Conf. on Acoustics, Speech and Signal Processing, 3, pp. 2249-2252R. A. Lotufo, Ramiro Jordan, John Rasure. Teaching Image Processing with Khoros. In: First IEEE International Conference on Image Processing, 1994, Austin, Texas. Proc. of First IEEE International Conference on Image Processing, 1994. v. S/N. p. 506-510Lotufo, R.A., Audigier, R., Saúde, A.V., Machado, R.C., Morphological Image Processing (2008) Microscope Image Processing, pp. 113-158. , Qiang WuFatima A. MerchantKenneth R. Castleman, Editors, 1 ed, Elsevier Academic PressR. C. Machado. \Adesso: Ambiente para Desenvolvimento de Software Científico. Dissertação de Mestrado, Faculdade de Engenharia Elétrica e Computação, UNICAMP, Brasil, Junho de 2002Machado, R.C., Lotufo, R.A., Silva, A.G., Saúde, A.V., Adesso: Scientific Software Development Environment (2003) Journal of Computer Science and Technology, , AprilA. G. Silva, R. A. Lotufo, R. C. Machado, A. V. Saúde. Toolbox of Image Processing Using the Python Language. In: ICIP 2003 - IEEE International Conference on Image Processing, 2003, Barcelona. IEEE Proceeding of ICIP 2003, p. 1049-1052Edward R. Dougherty, Roberto A. Lotufo. Hands-on Morphological Image Processing. SPIE Publications. July 24, 2003