Header File: A file containing the declarations that are to be used in one or more source files. A header file is normally included in a source file with an #include directive. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostGlobal Variables Next PostHeap