Human Resource Management, training and development is the field which is concerned with organizational activity aimed at bettering the performance of individuals and groups in organizational settings. It has been known by several names, including human resource development, and learning and development.[1] […] Training and development (T&D) encompasses three main activities: training, education, and development. Garavan, Costine, and Heraty, of the Irish Institute of Training and Development, note that these ideas are often considered to be synonymous. However, to practitioners, they encompass three separate, although interrelated, activities:[1][2][3]
Training: This activity is both focused upon, and evaluated against, the job that an individual currently holds.[3]Education: This activity focuses upon the jobs that an individual may potentially hold in the future, and is evaluated against those jobs. [3]Development: This activity focuses upon the activities that the organization employing the individual, or that the individual is part of, may partake in the future, and is almost impossible to evaluate.[3]

Source: https://en.wikipedia.org/wiki/Training_and_development