Need computer science help with a V-model, waterfall and iterative models/frameworks

Need  an short essay / critical thinking Describe the characteristics of each software development model:  V-model, waterfall and iterative models/frameworks and the key development stages or phases of each.Identify the key test levels with each model and the main goal(s) of each level. Incorporate details from section 2.2 into your analysis.Identify the pros and cons of each model.Identify how testing responsibilities and the role of the tester changes across the various development stages or phases.Provide an overview of how each model compares and contrasts to the other software development models.Make an overall recommendation of which model you believe would be more effective in a typical software development project. Provide justification for your recommendation.Note :Essay should be at least 450, but not more than 600 words.no plagarism and need original content with apa format and citations .Need it as soon as possible in atleast 2 hours please .. it is urjunt .