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The HUBzero Platform continues to grow. The latest release supports data management through the "projects" component, database publication through the DataStore component, publications with digital object identifiers, a learning management system for online education, a Pinterest-style mechanism for sharing scientific "collections", and much more. HUBzero is the basis of more than 40 science gateways throughout the world. All together, these sites have served more than 1,000,000 visitors during the past year alone. A growing community of developers, including Purdue University, Indiana University, Penn State, and Knowinnovation Inc., are working together within the HUBzero Foundation. The road ahead looks even brighter. New developments, including volunteer computing via BOINC and methods for uncertainty quantification, promise to quicken the pace of scientific progress in years to come.


Michael McLennan is a senior research scientist at Purdue University's Rosen Center for Advanced Computing, where he is Director of the HUBzero Platform for Scientific Collaboration. He received a Ph.D. in 1990 from Purdue University, supported as an SRC Graduate Fellow, for his dissertation on dissipative quantum mechanical electron transport in semiconductor heterostructure devices. He spent 14 years working in industry at Bell Labs and Cadence Design Systems, developing software for computer-aided design of integrated circuits. He created [incr Tcl], an object-oriented extension of the Tcl scripting language, which has been used by thousands of developers worldwide on projects ranging from the TiVo digital video recorder to the Mars Pathfinder. He coauthored two books, Effective Tcl/Tk Programming (Addison-Wesley, 1997) and Tcl/Tk Tools (O'Reilly Media, 1997). His latest project is the Rappture Toolkit, which accelerates the process of creating scientific tools for simulation and modeling.

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Researchers should cite this work as follows:

  • Michael McLennan (2013), "State of the Hub: 2013,"

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Nikki Huang

Purdue University


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