Spiral SDLC Model is a software model that helps you to identify the key deliverables and to measure their success. By using this model, you can easily identify the areas where you need to focus your efforts, and then move on to your next deliverable. This is a framework for identifying and prioritizing the different areas of work in an organization. It aids decision-making about what should be done first, which tasks should be given more time, and how much time should be allocated for each task.