The main purpose of ID models is to serve as tools for analyzing, designing, creating and evaluation guided learning.Evidently, there are numerous types of ID models that we can apply in developing our websites. These ID models are created because the need to test and evaluate learner behaviours are emerging. Also, many researchers believe that it is important to know how well the learners can perform in a particular educational activity.There are a few types of ID Models, which are:

• Dick,Carey and Carey Model(2001)
• Morrison, Ross and Kemp Model(2001)
• Nieveen Model (1997)
• Instructional Project Management Model(1994)
• Spiral Model(Boehm, 1998)
• Rapid Prototyping Model(Dorsey, Goodrum,Schwen 1997)

All these ID Models can be utilised in order to test and evaluate learners behaviours and understanding. Other than that, a web-developer can also utilise ID models such as ADDIE and ASSURE.