That's a good question

Nothing new would ever be invented in case new things would not be tried out all the time.

Your comment got me thinking...Thank you! Béatrice Marianne Ewalds-Kvist

I started out using ADDIE. Over the years I have found I jump around the model. Your own model is much more important was you grow into design. Start with the model you find most comfortable. Models are good for helping build a framework of understanding.

Thank you for your sharing your experience! Douglas Constant

Please go to this link :

https://www.threadless.com/designs/good-times-with-science-3

Designing a model might take decades of research and theory building. But what I have seen over the years is more like using "eclectic" models. This kind of model can include pieces from various ID models with or without a particular focus on an ID model. For example, UbD is a curriculum/instructional design model. It's not a pure design. It is based on Tyler's and other scholars' (mostly from Chicago) work. But it also has a theoretical framework. For IDs in the field who design courses, having an eclectic model would work. Designing a new one from scratch might need time and effort as well as consideration of "do we need another ID model."