Saturday, 27 June 2015

Introduction of Software Engineering

                  What is Software?
                     The product that software professionals build and then support over the                        long term.


                 Software encompasses: (1) instructions (computer programs) that when                          executed provide desired features, function, and performance;  (2) data                        structures that enable the programs to adequately store and manipulate                        information and (3) documentation that describes the operation and use of                    the programs.
             Software products
Generic products
Stand-alone systems that are marketed and sold to any customer who wishes to buy
them. Examples – PC software such as editing, graphics programs, project management tools;
CAD software; software for specific markets such as appointments systems for dentists.
Customized products                                                                                            
Software that is commissioned by a specific customer to meet their own needs.
Examples – embedded control systems, air traffic control software, traffic monitoring systems.
Why Software is Important?
The economies of ALL developed nations are dependent on software.
More and more systems are software controlled ( transportation, medical, telecommunications,        
military, industrial, entertainment,)
Software engineering is concerned with theories, methods and tools for professional software
development.



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