Week 3 dq 3- based on rajlich's (2006) article, do you think that the waterfall model is no longer useful in today's development environment? Discuss why or why not. According to rajlich (2006), "under the old paradigm, incremental change (ic) was supposed to happen only rarely, because all required functionalities and properties should have been identified in advance and implemented during the initial development." a major problem with the older paradigm of the waterfall model is inadequate requirements identification. The older paradigm followed predetermine specifications that can lead to insufficient system development. Newer development processes use an iterative approach that allows requirements to be added during various stages of system development. New research focuses on...