Training and development involve improving the effectiveness of organizations and the individuals and teams within them. Training may be viewed as related to immediate changes in organizational effectiveness via organized instruction, while development is related to the progress of longer-term organizational and employee goals. While training and development technically have differing definitions, the two are oftentimes used interchangeably and/or together. Training and development have historically been topics within adult education and applied psychology but have within the last two decades become closely associated with human resources management, talent management, human resources development, instructional design, human factors, and knowledge management.