An objective is a more restricted term in scope and finality. And in context of learning system, it is defined as the terminal behaviour or set of behaviours the instructional designer expects the learners to display as a result of training imparted to them. Statement of objectives must be regarded as a vital element in any instructional planning.

 A trainee enters the training situation with a certain set of behaviours - which may even be nil - towards certain stimuli. As a result of training, he comes out with a difference i.e. behavioural change and this constitutes the result of training.

 This difference is usually measured through pre - testing (given at the end of training activity). Thus the behavioural changes taken place is measured through - in terms of knowledge, attitude and psychomotor skills (muscular action).