Biographical Information
            
                
                
                    David Feldman is principal consultant for InterfaceThis, a software and user interface design firm.
                 
             
            
        
            Articles by David Feldman
    
        
            Understanding open source Part 2
        
        
            
                
                    27 Mar 2006
        
        
            Open source usability and the arc of innovation
Open source software (OSS) is consistently gaining strength as a movement and a viable software development paradigm. If you've heard of it but don't quite know what it is, you may want to read Part 1 of this article, which appeared in the February issue of KMWorld.
    
        
            Understanding open source Part 1
        
        
            
                
                    01 Feb 2006
        
        
            Actual opinions vary on exactly what open source means, and how broad a category it defines. At its most basic, the definition is simple: It's software for which the source code is publicly available, free of charge.