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The Evolution of the DARWIN SystemDARWIN is a web-based system for presenting the results of wind-tunnel testing and computational model analyses to aerospace designers. DARWIN captures the data, maintains the information, and manages derived knowledge (e.g. visualizations, etc.) of large quantities of aerospace data. In addition, it provides tools and an environment for distributed collaborative engineering. We are currently constructing the third version of the DARWIN software system. DARWN's development history has, in some sense, tracked the development of web applications. The 1995 DARWIN reflected the latest web technologies--CGI scripts, Java applets and a three-layer architecture--available at that time. The 1997 version of DARWIN expanded on this base, making extensive use of a plethora of web technologies, including Java/JavaScript and Dynamic HTML. While more powerful, this multiplicity has proven to be a maintenance and development headache. The year 2000 version of DARWIN will provide a more stable and uniform foundation environment, composed primarily of Java mechanisms. In this paper, we discuss this evolution, comparing the strengths and weaknesses of the various architectural approaches and describing the lessons learned about building complex web applications.
Document ID
20000092055
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Walton, Joan D. (NASA Ames Research Center Moffett Field, CA United States)
Filman, Robert E. (NASA Ames Research Center Moffett Field, CA United States)
Korsmeyer, David J. (NASA Ames Research Center Moffett Field, CA United States)
Norvig, Peter
Date Acquired
September 7, 2013
Publication Date
January 1, 1999
Subject Category
Aerodynamics
Meeting Information
Meeting: Applied Computing
Location: Como
Country: Italy
Start Date: March 19, 2000
End Date: March 21, 2000
Sponsors: Association for Computing Machinery
Funding Number(s)
PROJECT: RTOP 519-10-12
CONTRACT_GRANT: NAS2-14217
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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