Hi, if you have access to a level 3 handbook you'll find it good support for this knowledge, look under unit cyp 3.6 - working together for the benefit of children and young people
available on amazon.co.uk.
Page 164 takes a description that the cwdc once promoted -
Multi-agency working information Multi-agency working is - 'Practitioners from different sectors and professions within the workforce that are brought together to provide integrated support to children and their families, for example a 'team around a child' TAC.
Please note that the cwdc's publications are available on education.gov.uk but any link that takes you to the url
cwdc.org.uk now results in a seeing a site under new ownership. The cwdc - children's workforce development council was decommissioned back in 2012 where the website was then purchased privately/commercially.
Best wishes