Add Papers Marked0
Paper checked off!

Marked works

Viewed0

Viewed works

Shopping Cart0
Paper added to shopping cart!

Shopping Cart

Register Now

internet library
Atlants.lv library
FAQ
3,99 € Add to cart
Add to Wish List
Want cheaper?
ID number:305773
 
Evaluation:
Published: 03.08.2003.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

(DFDs)
1. Introduction
When system analysts attempt to understand the information requirements of users, they must be able to conceptualize how data moves through the organization, the processes or transformations that the data undergoes, and what the outputs are. Through a structured analysis technique called data flow diagrams (DFDs), the systems analyst can put together a graphical representation of data processes throughout the organization. The data flow approach emphasizes the logic underlying the system. By using combinations of only four symbols, the systems analyst can create a pictorial depiction of processes that will eventually provide solid system documentation.
The data flow approach has four chief advantages over narrative explanations of the way data moves through the system (Kendall, 2002).
·Freedom from committing to the technical implementation of the system too early.
·Further understanding of the interrelatedness of systems and subsystems.
·Communicating current system knowledge to user through data flow diagrams.

Author's comment
Load more similar papers

Atlants

Choose Authorization Method

Email & Password

Email & Password

Wrong e-mail adress or password!
Log In

Forgot your password?

Draugiem.pase
Facebook

Not registered yet?

Register and redeem free papers!

To receive free papers from Atlants.com it is necessary to register. It's quick and will only take a few seconds.

If you have already registered, simply to access the free content.

Cancel Register