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Why Instructional System Design and ADDIE?

Instructional System Design (ISD) is often referred to as ADDIE, which is the acronym for the five phases of ISD:

  1. Analysis
  2. Design
  3. Development
  4. Implementation
  5. Evaluation.

ISD or ADDIE may be defined as the systematic and iterative method for creating learning experience that develop and enhance skills and knowledge.

In the past, ISD or ADDIE was often referred to as a Systems Approach to Training (SAT), (U.S. Department of Defense, 1975; Department of the Army, 2011).

ISD can be thought of as a roadmap that helps to ensure the learners and their organization achieve their learning and performance goals through formal, nonformal, and informal environments.

Finding a mentorFinding a mentor

ISD helps to guide the Instructional Designer in the human performance puzzle

Related Models

Besides ADDIE or ISD, there are other systematic approaches to training such as the Dick and Carey Model and Bela Banathy's Instructional System. These approaches have some common elements:

While ISD can handle a variety of performance and learning needs, some problems might require a different approach. Other models that may fit the problem better can be found at Design Methodologies: ISD, Design Thinking, Agile Design, System Design, or X Problem?

ISD verses ID

Instructional System Design models differ from Instructional Design (ID) models in that ISD models have a broad scope and typically divide the instruction design process into roughly five phases (van Merriƫnboer, 1997, pp 2-3):

On the other hand, Instructional Design (ID) models normally only focus on the design and somewhat on the analysis parts, thus they are able to address a particular need in a learning process.

Thus, ADDIE is used to guide the entire process of creating the learning platform, while various ID models are plugged into it to fill in the blank spots (van Merriënboer, 1997), such as shown in this example:

ID models are used in conjunction with ISD

For more information, see the ADDIE Timeline and Instruction Design.

Why ADDIE?

Why use ADDIE or ISD? Simply stated, it provides a means for sound decision making in order to determine the who, what, when, where, why, and how of a learning program.

The concept of a system approach is based on obtaining an overall view of the learning process. It is characterized by an orderly process for gathering and analyzing collective and individual performance requirements, and the ability to respond to identified learning and training needs. The application of a systems approach insures that learning programs and the required support materials are continually developed in an effective and efficient manner to match the variety of needs in a rapidly changing environment. (Branson, 1975)

The Learning or Training System

When some people see or hear the word “system”, they often think of mega-methodologies that require several bookcases and intense training to use. ISD is not that difficult or complicated. The ISD model was designed to solve human performance problems related to learning or training (U.S. Department of Defense, 1975). The figure shown below is a flowchart of the ISD model. It was first created by Florida State University in conjunction with the Department of Defense, but can now be found in almost any type of organization (Watson, 1981). It grew out of the “systems analysis” concepts that became popular after World War II and is probably the most extensively used instructional design model in use today. In addition, it has evolved over the years to keep up with new technologies and ideas.

The Five Steps of ADDIE

The flowchart model shown above lists the five phases along with their basic steps (Berkowitz, O'Neil, 1979). While it does a good job of showing the phases and steps, it does not really show the dynamics of the ISD process. In addition, it only shows a selected number of steps under each phase that may or may not be needed for a particular learning process and omits steps that may be needed for other learning processes. A better diagram is achieved using the following model:

ISD Evaluation Analysis Design Development Implement

While the ISD model is often listed in linear order (as shown in the first model), the above model illustrates how it is actually performed — in an iterative and cyclic fashion (Merriënboer, 1997; Department of the Army, 2011). Thus, ADDIE is NOT a waterfall method (static and linear) as some believe. The model also highlights the importance of evaluation and feedback throughout the entire life-cycle and shows the importance of gathering and distributing information between the five phases.

Another version of the ADDIE model is the U.S. Army's non-linear model (Department of the Army, 2011). Note the use of two evaluations in the model — the inner circle is for formative evaluations, while the outer one is for summative evaluations.

ADDIE by the U.S. Army

The five phases are ongoing activities that continue throughout the life-cycle of a learning process. After building the learning process, the other phases do not end once the learning process (Implementation) has began, but are continually repeated to improve the learning process and meet new challenges as they are encountered.

The ADDIE model is a tool for solving many types of performance problems. But, designers must step back to see where they are going, otherwise the tool will become a process model that controls them, instead of them controlling the tool. - Donald Clark

Next Steps

Next section: Systems and Processes

Related pages: History of ISD and ADDIE Timeline Model

Return to the Table of Contents

References

Berkowitz, M., O'Neil, H.F. (1979). An Annotated Bibliography For Instructional System Development. U.S. Army Research Institute for the Behavioral and Social Sciences, Technical Report 426.

Branson, R.K. (1975). Interservice procedures for instructional systems development: Executive summary and model. Tallahassee, FL: Center for Educational Technology, Florida State University. (National Technical Information Service). Document Nos. AD-A019 486 to AD-A019490).

U.S. Army Field Artillery School (1984). A System Approach To Training (Course Student textbook). ST-5K061FD92.

U.S. Department of Defense (1975). Interservice Procedures for Instructional Systems Development Model. TRDOC Pamphlet 350-30. August, 1975.

Department of the Army (2011). Army Learning Policy and Systems. TRADOC Regulation 350-70.

van Merriënboer, J.J.G. (1997). Training Complex Cognitive Skills: A Four-Component Instructional Design Model for Technical Training. Englewood Cliffs, NJ: Educational Technology Publications.

Watson, Russell (1981). Instructional System Development. International Congress for Individualized Instruction. EDRS publication ED 209 239.