Source : Free On-Line Dictionary of Computing

Organic Mode
     
         A term used by {COCOMO} to describe a project
        that is developed in a familiar, stable environment.
     
        The product is similar to previously developed products.  Most
        people connected with the project have extensive experience in
        working with related systems and have a thorough understanding
        of the project.  The project contains a minimum of innovative
        data processing architectures or {algorithms}.  The product
        requires little innovation and is relatively small, rarely
        greater than 50,000 {DSI}s.
     
        (1996-05-29)