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Data flow diagrams

Description of Online Appointment System

Understanding Online Appointment System – Data Flow Diagram – Tutorials

What is an Online Appointment system? An Online Appointment System is an information system generally based on web from where a client can make an appointment with the person of his interest. In a simple sense it is the information system you use to make an appointment to any organization …

Train Ticket Reservation System; Context Diagram

Tutorial on How to draw Data Flow Diagram – Train and Air Ticket Reservation System – Example

Train and Air Ticket Reservation System – Data Flow Diagram – Example Train Ticket reservation system is a very complicated system. It is complicated because it consists of more number of entities and processes. Data in this system should be collected from more number of entities and need to be …

Mark-sheet Withdrawing System; Context Diagram

Tutorial on How to draw Data Flow Diagrams – Withdraw Mark-sheet from University – Example

Withdraw mark-sheet from University – Data Flow Diagram – Example System for withdrawing mark-sheet from the University is a very simple system. When it comes to design model of this system by using Symbols of DFD then we might have to work with our mind. Here, I have posted an …

Returning a book to library; Context Diagram

Returning a book to library – Data Flow Diagram – Example

Returning a book to library – Data Flow Diagram – Example After issuing a book from library, it is arbitrary to return …

Issuing items form Departmental Store DFD

Issuing Item from Department Store – Data Flow Diagram – Example

Issuing Item from Departmental Store Explanation: This system is a sub system of Departmental Store Management System. It can work as a …

Issuing out a book from a library-Context Diagram DFD

Issuing out a book from a library – Data Flow Diagram – Example

 Issuing out a book from a library Explanation: This system need to accept student information as input. Student information may contain student …

Leveled DFD for Record and Pay Invoices process

Advantages and Disadvantages of the DFD

Advantages of the Data Flow Diagram System analyst in some extent, argue Data Flow Diagrams as this procedure takes long time of …

Physical Data Flow Diagram for cashing cheque

Difference between Physical and Logical Data Flow Diagrams

Difference between Logical DFD and Physical DFD So far we considered data flow diagrams as logical models. They specify the logical process …

Leveled DFD for Record and Pay Invoices process

How do we begin to construct Data Flow Diagrams (DFDs)?

How do we begin to construct Data Flow Diagrams (DFDs)? Hope you have read our previous articles on Concept of Data Flow …

Process are denoted by circles in DFDs

Symbols used in Data Flow Diagrams (DFDs)

Symbols used in Data Flow Diagrams (DFDs) In previous article, we discussed about the concept of Data Flow Diagrams, now it’s time …

DFD - The interfaces required to design and build a system

Concept of Data Flow Diagrams (DFD)

Data Flow Diagrams Concept of Data Flow Diagrams (abbreviated as DFDs) was introduced by De-Marco in 1978 and also by Gane and …