The nature of software Untrained people can hack something together Quality problems are hard to notice Software is easy to modify People make changes without fully understanding it Software does not wear out It deteriorates by having its design changed -erroneously, or -in ways that were not anticipated, thus making it complex www.oseng.com O Lethbridge/Laganiere 2001 Chapter 1: Software and Software Engineering© Lethbridge/Laganière 2001 Chapter 1: Software and Software Engineering 3 The Nature of Software ... Untrained people can hack something together • Quality problems are hard to notice Software is easy to modify • People make changes without fully understanding it Software does not ‘wear out’ • It deteriorates by having its design changed: —erroneously, or —in ways that were not anticipated, thus making it complex