๐ Data Flow Diagram
Also know as DFD
A DFD charts the path of data as it flows outside the boundaries of a system.
Pros:โ
- Beneficial for communicating existing system knowledge to the users.
 - A straightforward graphical technique which is easy to recognise
 - DFD's can provide a detailed experience representation of system components
 - Provides detailed information about the system flow
 
Cons:โ
- Takes a long time to create
 - Physical considerations are left out
 
- External data source or data destination source  
 - Processes  
 - Data Stores  
 - Data flows  
 
Example:โ
