But the origin of Flow actually may go back even a bit further. In March 2015, Microsoft unveiled Azure App Service, its service for developers interested in building all kinds of cloud-connected apps. One of the pieces of Azure App Service was Logic Apps.
Logic Apps allow technical users or developers to automate business-process execution and enterprise-integration via a visual designer.
I asked Microsoft if Flow originated from Logic Apps. A spokesperson responded:
"Microsoft Flow is a stand-alone SaaS Service that is designed for broad usage, including business users that want to automate day-to-day tasks. Logic Apps is an Azure service available through the Azure Portal. It is targeted at developers that need to tackle more complex integration problems, it includes the great features available in Microsoft Flow, plus additional capability like integration with Azure Resource Manager and the Azure Portal, PowerShell and the Azure Command-Line Interface (Azure CLI), Visual Studio, more advanced connectors."
Siciliano joined the Azure team to work on monitoring, management and automation experiences for Azure customers, especially around Azure Autoscale and Alerts. More recently, his team developed Logic Apps. Then Siciliano moved to the position of GPM of Logic Flows on PowerApps.