Software development life cycle

Software development life cycle

1. A model is different from a methodology, the first says what to do while the second describes how do what

   • Software that provides backend, usually a service and other applications
     • Software que proporciona backend, normalmente, un servicio y otras aplicaciones
     • Software that provides a service to a user end, normally, encapsulates, formats or logic understandable to the end user
       • waterfall model
         • This model assumes that everything is carried out and takes place as planned in the previous phase, and it is not necessary to think about past issues that could arise in the next phase.
           • has 3 stages
             • Definition of the problem, which includes both the specification of requirements and the analysis of the system.
             • Development, which covers the design, implementation and testing of the system.
             • Maintenance, that is, the installation and maintenance of the system.
         • requires 6 types of documents to be produced
           • requirements document
           • preliminary design specification
           • interface design specification
           • final design specification
           • test plan during design stage
           • operating manual or instructions
     • Software that provides a visual interface for the user.

Images and files in the map