Despite being one of the exposure controls in photography, the f/stop (or aperture, the terms are interchangeable) remains a source of confusion and mystery to many photographers, even to some who use it all the time.
RACI Matrices. A RACI chart is a matrix of all project activities associated with the responsible people or roles. âAll project activitiesâ includes everything from the day you begin, such as planning, test, design, support, etc.
1 Documents the Status Quo: the output from RACI is a simple yet effective method of documenting the roles and responsibilities in an organisation.  By identifying the functions and processes within the organisation or department and describing the key activities taking place.