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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 …

Hierarchial database model

Hierarchical Database Model

Hierarchical database model The hierarchical data model organizes data in a tree structure. There is a hierarchy of parent and child data …

Relational Database Model

Relational Database Model

Relational database model The relational model is today the primary data model for commercial data processing applications. It has attained its primary …

Database Management System (DBMS)

What is Database Management System?   A   database   management   system   (DBMS)   consists   of   a collection of interrelated data and a set of …

Database – Data and Information

What is Database?   A Database is a repository for collection of related data or facts stored so that it is available …

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 …