Many-to-many

{{about|the communications term|the data modelling concept|Many-to-many (data model)}}

Many-to-many communication occurs when information is shared between groups.{{cite book |chapter-url=https://books.google.com/books?id=sTlPLMq6ZdYC&pg=PA134 |pages=134–143

|chapter=Many-to-many communication: A new medium |first=Amy |last=Bruckman |title=Computer Science: Reflections on the Field, Reflections from the Field |year=2004 |publisher=National Academies Press |isbn=9780309165631}} Members of a group receive information from multiple senders.{{cite book |url=https://books.google.com/books?id=pspnGbHFGLcC&pg=PA330 |page=330 |title=Computer Networks, A Systems Approach |first1=Larry L. |last1=Peterson |first2=Bruce S. |last2=Davie |year=2007 |isbn=9780080476674 |publisher=Elsevier Science}}

Wikis are a type of many-to-many communication, where multiple editors collaborate to create content that is disseminated among a wide audience.{{cite book |url=https://books.google.com/books?id=5VXgXlU7g-YC&pg=PA14 |page=14 |title=Wikis For Dummies |first1=Dan |last1=Woods |first2=Peter |last2=Thoeny |year=2011 |isbn=9781118050668 |publisher=Wiley}} Video conferencing, online gaming, chat rooms, and internet forums are also types of many-to-many communication.{{cite book |url=https://books.google.com/books?id=B0e6BQAAQBAJ&pg=PA880 |page=880 |title=Quality, Reliability, Security and Robustness in Heterogeneous Networks |first=Karan |author=Singh |year=2013 |isbn=9783642379499 |publisher=Springer Berlin Heidelberg}}{{cite book |url=https://books.google.com/books?id=rfG1RfQKwdgC&pg=PA88 |page=88 |title=A Dictionary of Marketing |first=Charles |last=Doyle |year=2011 |publisher=OUP Oxford|isbn=978-0199590230 }}