Sawan Mein Lag Gayi Aag Ke Dil Mera Haaye - Mika Singh, Neha Kakkar, Badshah | Lyrics | Mp3 Download

Title Name  - Sawan Mein Lag Gayi Aag  Movie - Ginny Weds Sunny Cast/Starring - Yami, Vikrant Singer Name - Mika Singh, Neha Kakk...

Data flow diagram, Data dictionary | Advantages and Disadvantages

Data flow diagram [DFD]

  • with the data flow diagram user are able to viewable  how the system will be implemented what the system will accomplish.
  • dfo is used to provide  to users with physical idea.
  • input output of data  and  effect on the structure  of mis .

Data dictionary

Data dictionary acts as a automated manual or active or passive data dictionary it has ability to store data data dictionary are also information about the data.
  • the name of the data item .
  • sources of data .
  • name of the data items. 
  • search the data item for description.

Advantages of data dictionary

  • it gives full information about data base 
  •  it is very easy to understand 
  • helps the users by providing all details 
  • it is very easy to find any fault in data base

Disadvantages of data dictionary

  •  it is very difficult to make new  data dictionary.
  • it is too expensive. 
  •  the cost of dd is very high.
  • it should be well design because  if it  is not  attractive it creates a problems.

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