Sharepoint 2010 Managed Metadata Services

Sharepoint 2010 has a new service called the Managed Metadata Service . It was not available in the previous versions of Sharepoint.

In the SSP's what the problem was we dint have the option to pick and choose services . All services that were within the SSP had to be utilized , but now with the new service architecture in 2010 we adopt the
Service "al a carte " Model which allows us to pick and choose services across the farm.

Now in SP 2010 whenever we create a new web application we have the option of choosing from a list of services we want to use within our web-appilication .

Now with managed metadata service what option we have is we can now use the content type and the metadata available in one site collection across all site collections
1. In managed metadata service application we can add the "HUB" - one site collection name
    and many other site collections can act as a subscriber.
2. Suppose we create a content type within the HUB site collection we can use it across all site collections in 
    the farm , which was not possible in SP 2007. If we had to use the existing content type of one site
    collection it had to be exported and the imported back to site collection. But now with managed metadata
    services we can do that easily.

1. When we create a new Managed Metadata Service we get two links according to name given.
   Suppose you name it "GlobalManagedMetadata" . Then it creates two links
   i GlobalManagedMetadata
   ii GlobalManagedMetadata Connections

Global Managed metadata takes us to the term store Management tool where we can create new groups, termsets and terms.
Structure is groups> can have termsets> terms are within termset
This can be used as site columns for ur content type.

In connection settings you need to check pick the content from the HUB site.

Another important thing is you need to do is after creating content type you need to  publish the content type and then restart the timer job services for you to use the content types across the site collection. (Its available in monitoring section of central admin)

To view  a demo on Managed metadata Service Click Here