You have asked a brief query on development of "others". However, you have not mentioned the context of your query. We need information like who are those "others", what is their designation, on what skills or competencies they need to be developed, how will you assess the development and after what span of time and so on. There are innumerable questions associated with your post.
Have you done Google search for your query? Why you expect members of this forum to do Google search on your behalf?
Are you external training/HR consultant or in-house HR professional? Who has given you this assignment? Your very concise query raises question on your self-awareness. Before developing "others", what steps you have taken to develop yourself, ask this question to yourself. Else the assignment could become unwieldy and it could put you on the mat!
16th September 2017 From India, Bangalore