How to decide implementation way for share point site ?

Question

Hi,
I am developing new share point site where i want to manage more hierarchical data with its own business requirements and flows.
lets assume following scenario 
there are multiple companies at very top level
Every company contains multiple departments
and every department have multiple groups (group of working people)
 I want to manage communication between each group within each company, and no two group from two diff companies should interact with each other.
For this implement what will be the better approach for site design ?  and how can i implement such a hierarchical structure ?
As i am new to share point , any help will be appreciable.
Thanks,
C Mahone

Answer 1

Create a separate site collection for each company.  For every department you can have a sub site. You can create groups within the sub site.
Once you separate the each company details in a separate site collection you will have more control over the security.
Check the below link for site planning  in SharePoint
http://technet.microsoft.com/en-us/library/ee476994%28v=office.15%29.aspx
My Blog- http://www.sharepoint-journey.com|
If a post answers your question, please click Mark As Answer on that post and Vote as Helpful