An LOB (line of business) is a general term that describes the products or services offered by a business or manufacturer.
An LOB (line-of-business) application is one of the set of critical computer applications that are vital to running an enterprise, such as accounting, supply chain management, and resource planning applications.
Scenario and deployment approaches - Connect
Deploying Apps to Mac's using Microsoft Intune, by Scott Duffey, Learning Microsoft Intune
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Understand line-of-business apps for your managed environment
Deploy Private LOB Apps To Android Devices Using Intune HTMD Blog
Deploy Private LOB Apps To Android Devices Using Intune HTMD Blog
Line of Business Limitations
Line of Business Limitations
What is a line of business?