According to the following: 1. Implementation and unit testing 2. Integration and system testing 3. Requirements analysis and definition 4. System and software design 5. Operation and maintenance The waterfall model phases are like: Which one of the following is not among the advantages of Incremental development model: Select one: The cost of accommodating changing customer requirements is reduced. It is easier to get customer feedback on the development work that has been done. System structure tends to degrade as new increments are added. More rapid delivery and deployment of useful software to the customer is possible