​​​According to the Instructional Design Central​ website, instructional design is the systematic process or processes in which instructional materials are designed, developed, and delivered. ​​

More about the course design process:

​Analyze
In the analysis phase of the ADDIE Model the instructional problem is identified. The instructional goals, success metrics, and overall objectives are also established. Information regarding the learner such as the learning environment, preferences, demographics, and existing knowledge and skills are also identified during this phase.​

​Design
The design phase of the ADDIE Model nails down learning objectives, instructional methods and activities, storyboards, content, subject matter knowledge, lesson outlines, and media assets.​

Develop
The development phase of the ADDIE Model is where instructional designers develop the content and learning interactions outlined in the design phase. During this phase, content is written and graphics, audio, and photography are also produced and assembled.​​

Implement​​​
During the implementation part of the ADDIE Model, the instructional designer delivers the content and materials to Learning Management Systems (LMS) or directly to the trainer for live training events. The instructional designer also provides training needed to trainers, facilitators, SME's or instructors. 

Evaluate
During the evaluation phase of the ADDIE Model, the instructional designer  determines what success will look like and how it will be measured. Often times, the evaluation consists of two phases: formative and summative. Formative evaluation is iterative and is done throughout the design and development processes. This occurs all throughout the ADDIE process. Summative evaluation consists of tests that are done after the training materials are delivered. The results from these test help to inform the instructional designer and stake holders on whether or not the training accomplished its original goals outlined in the analysis phase. ​

​Source: https://www.instructionaldesigncentral.com/