This document discusses the concepts of careers and career development. It defines a career as all the jobs and occupations a person holds over their lifetime. It then discusses different types of career systems, including career management, career planning, and open vs closed career paths. The document outlines theories of career development and the career development process. It also discusses tools and requirements for effective career development in organizations. Finally, it examines emerging trends in public management and challenges for civil service competitiveness in the 21st century.