You have this book? pages 17+ look at the issues arising from maintaining confidentiality and needing to disclose information, and page 180 helps you analyse as it states recommended practices. Use the index to search for partnership working.
http://www.silkysteps.com/forum/showthread.php?t=12542
Please see if your tutor has a copy of the
Early Years Educator handbook you can use so that your research reflects your course requirements.
Unit 2.5 the complexity of working in partnership is included on page 153
EYE level 3 handbook and involves you understanding how partnership working happens and why. You're looking to include parental consent, systems of keeping information, changes of professionals, coordinating all the support and services. Maintaining confidentiality is then explained on page 15