Dispersed information

In one's lifetime,a person gathers knowledge from several information sources and documents including books, school courses, cheat sheets, brochures, professional literature, technical articles, video training, projects from the past, ... Very often the human visual working memory relies on a limited key documents that are used throughout one's carreer. The same is true for digital information and one would expect this makes it easy to bundle this information. However, due to the rapid change of computer systems and applications you soon end up with dispersed and redundant information