An iterative process that emphasizes rapid prototyping and continuous feedback.
Allen, M., & Sites, R. (2012). Leaving ADDIE for SAM: An agile model for developing the best learning experiences (1st ed.). Association for Talent Development (ATD).
Sites, R., & Green, A. (2014). Leaving ADDIE for SAM field guide : Guidelines and templates for developing the best learning experiences (1st ed.). Association for Talent Development.