Tag: E-Business

In a distributed database, there are a number of databases that may be geographically distributed all over the world. A distributed DBMS manages the distributed …

The strategies can be broadly divided into replication and fragmentation. However, in most cases, a combination of the two is used. Data Replication Data replication …

Each real-time design concern for software must be applied in the context of system performance. In most cases, the performance of a real-time system is measured as …

State-transition diagrams describe all of the states that an object can have, the events under which an object changes state (transitions), the conditions that must …

Data Dictionary A data dictionary contains metadata i.e data about the database. The data dictionary is very important as it contains information such as what …

Decision trees are a method for defining complex relationships by describing decisions and avoiding the problems in communication. A decision tree is a diagram that …

A proper database design cannot be thrown together quickly by novices. What is required is a practiced and formal approach to gathering data requirements and …

Data flow diagram is graphical representation of flow of data in an information system. It is capable of depicting incoming data flow, outgoing data flow …

Both forms and reports are the product of input and output design and are business document consisting of specified data. The main difference is that …

Structure chart is a chart derived from Data Flow Diagram. It represents the system in more detail than DFD. It breaks down the entire system …