includes posts related to engineering
Returning a book to library – Data Flow Diagram – Example After issuing a book from library, it is arbitrary to return the book in time. In this example we will discuss about the model of returning a book to library. Explanation: This system need to accept student information as …
Hierarchical database model The hierarchical data model organizes data in a tree structure. There is a hierarchy of parent and child data segments. This structure implies that a record can have repeating information, generally in the child data segments. Data is in a series of records, which has a set …
Relational database model The relational model is today the primary data model for commercial data processing applications. It has attained its primary position because of its simplicity, which eases the job of the programmer, as compared to earlier data models such as the network model or the hierarchical model. A …
What is Database Management System? A database management system (DBMS) consists of a collection of interrelated data and a set of …
What is Database? A Database is a repository for collection of related data or facts stored so that it is available …
Issuing Item from Departmental Store Explanation: This system is a sub system of Departmental Store Management System. It can work as a …
Write an assembly language program to check the number in memory location C000H is even or odd, if the number is even, …
Issuing out a book from a library Explanation: This system need to accept student information as input. Student information may contain student …
Advantages of the Data Flow Diagram System analyst in some extent, argue Data Flow Diagrams as this procedure takes long time of …
Difference between Logical DFD and Physical DFD So far we considered data flow diagrams as logical models. They specify the logical process …
How do we begin to construct Data Flow Diagrams (DFDs)? Hope you have read our previous articles on Concept of Data Flow …