What model is described as a popular Instructional Systems Design (ISD) model with five phases?

The model described as a popular Instructional Systems Design (ISD) model with five phases is ADDIE. This model comprises five key stages: Analysis, Design, Development, Implementation, and Evaluation. Each phase plays a critical role in creating effective instructional materials and experiences.

During the Analysis phase, needs assessments are conducted to identify gaps in knowledge or skills, which informs the overall goals of the instructional project. The Design phase focuses on outlining the learning objectives and planning the instructional strategy. In the Development phase, the actual materials and activities are created based on the design specifications. The Implementation phase involves delivering the instructional solution to learners, ensuring that everything runs smoothly in practice. Finally, the Evaluation phase assesses the effectiveness of the instruction both during and after the implementation to ensure continuous improvement.

This structured approach ensures that instructional designers can create focused, measurable, and effective educational programs tailored to the learners' needs. The ADDIE model is widely used and recognized for its systematic, iterative nature, which allows for ongoing revisions and enhancements based on feedback and evaluation results.