Please enable JavaScript.

Coggle requires JavaScript to display documents.

System Development life cycle: Design, Implementation, Testing (Design…

- - - - Also known as the big bang method, involves the immediate switch over to a new system with all devices at the same time.
        
        Advantages
        
        No incompatibility problems with older systems
        
        No need to maintain older system
        
        Immediate access to new functions
        
        Disadvantages
        
        Staff may not understand the new system.
        
        If there is a major problem there is now no backup.