InfoPath Dev

The Parent List is a custom list created in SharePoint 2010. Yes, I am using a SharePoint List form in InfoPath  I am not familiar with OData service, nor do I see that option listed on my data connection wizard.

I have a troubling issue. Scenario: Parent List: Holds all data for project Child List: Each Parent Project (data connected) contains multiple action tasks, each with start and stop times. Each listed as a separate item  I have build a calculated column for my child list in SharePoint ...