Visio Services lets users share and view Visio Web drawings and when used with SharePoint 2010, Access Services allows users to create new databases with forms and reports that run in the browser. Access and Visio services have a strong appeal to many developers as they are able to offer a hosted browser-based version of their app. This could be particularly helpful in developing in-house applications as well commercial ones. Read complete article -
http://www.sharepointbriefing.com/spservices/access-visio-services-in-sharepoint-2010.html
http://www.sharepointbriefing.com/spservices/access-visio-services-in-sharepoint-2010.html