A framework is a real or conceptual structure intended to serve as a support or guide for the building of something that expands the structure into something useful. In fact, ISO27001 only provides a structure for requirements and does not explain how an organization should implement, operate, monitor, review, maintain and/or improve. The closest the information security profession has towards a framework is the NIST series of Special Publications that continues to grow and be refined and the overall ISO body of work that covers many different topics.”]
Source: https://www.csoonline.com/article/2136372/a-standard–a-framework-or-a-standard-framework-.html