There are two main models in the skills approach,Katz's three skill approach and Mumford et al.'s skills model.Compare these two models by describing two similarities and two differences between these models.

Similarities include the competencies in Mumford's model and the three skills in Katz's model.Knowledge is similar to technical skill,social judgment is similar to human skill,and problem solving is similar to conceptual skill.Both models are focused on identifying skills of leaders; however,Mumford's model attempted to assess leadership outcomes whereas Katz's model did not have an assessment component.Additional differences include the addition of individual attributes,career experiences,and environmental influences in Mumford's model.