WebIn a data flow diagram (DFD), an external entity symbol portrays a source or a destination of data outside the system. ANS: T PTS: 1 ANS : T 18. A context diagram is a top-level diagram of a system that depicts the system and all its activities as a single bubble. ANS: T PTS: 1 ANS : T 19. A customer is an example of an internal entity. WebAlso known as DFD, Data flow diagrams are used to graphically represent the flow of data in a business information system. DFD describes the processes that are involved in a …
AIS10e Ch 04 - Chapter 4Documenting Information Systems...
WebData Flow Diagrams show information transfers and process steps of a system. The general concept is an approach of a depicting how occurs input in a system, further processes … WebIn a DFD, the Gane and Sarson symbol for a data store is a ____. flat rectangle that is open on the right side and closed on the left side In a DFD, the Gane and Sarson symbol for an entity is a ____. rectangle, which may be shaded to make it look three-dimensional phillip obit
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WebA data flow symbol represents a pathway for data and a data store symbol represents a place where data are stored ii. An external entity symbol portrays a source or a … WebIn a data flow diagram (DFD), a bubble symbol shown below depicts an entity or a process within which incoming data flows are transformed into outgoing data flows. True An information processing activity could be any of the following except: sending or receiving data between entities document preparation data entry Verification WebThe basic symbols of DFD are, External entity An object outside the system, which the system communicates is known as an external entity. An external entity represents the terminator, source, organization, and people (actor). An external entity is the source and destination of the system which receives/sends data from/to their system. phillip ochoa