A data flow diagram is a graphical representation of the data movement in a system or process. It consists of four main elements: entities, processes, data stores, and data flows. Entities are ...

A data flow diagram (DFD) is a visual representation of how data flows through a system or organization. It’s a powerful tool for identifying key components, understanding the relationships between ...

However, previous definitions of the data flow diagram have not provided a comprehensive way to represent the interaction between the timing and control aspects of a system and its data transformation ...

But, it is semi formal which means it lacks representation of semantics. Also, it doesn 't consider security features of the system. In, this paper, we describe our new proposed methodology called ...