DFD Guidelines (cont,)
{"Image DocumentName": "DFD Guidelines (cont,)", "Image ImageDescription": "11. A data flow should go to an operations entity square when only operations functions (that is, work-related functions such as storing goods, picking goods from shelves, etc.) are to performed by that entity. A data flow should enter an entity bubble if the operations entity is to perform an information processing activity. 12. On a physical DFD, reading computer data stores & writing to computer data stores must go through a computer bubble. 13. On a logical DFD, data flows cannot go from higher- to lower-numbered bubbles.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}