Softwareengineeringisthestudyandanapplicationof engineeringtothedesign,development,andmaintenance ofsoftware.[1][2][3]TheBureauofLaborStatistics’definitionis“Research,design,develop,andtestoperating systems-levelsoftware,compilers,andnetworkdistributionsoftwareformedical,industrial,military,communications,aerospace,business,scientific,andgeneralcomputingapplications.” Typicalformaldefinitionsofsoftwareengineeringare: •“theapplicationofasystematic,disciplined,quantifiableapproachtothedevelopment,operation,and maintenanceofsoftware";[4] •“anengineeringdisciplinethatisconcernedwithall aspectsofsoftwareproduction";[5] •and“theestablishmentanduseofsoundengineeringprinciplesinordertoeconomicallyobtainsoftwarethatisreliableandworksefficientlyonreal machines.