What are the rules for making DFD, Software Engineering

Assignment Help:

What are the Rules for making DFD  

The below factors must be considered when making DFDs: 

1.   Keep a note of all processes and external entities. Give unique names to them.

Identify the manner in which they interact with one another.

2.   Do numbering of processes.

3.   Avoid complex DFDs (if possible). 

4.   The DFD must be internally consistent. 

5.   Each process must have minimum of one input and one output. 

Data store must contain all the data elements which flow as output and input. 

 


Related Discussions:- What are the rules for making DFD

Give the procedure of the delphi method, Give the procedure of the Delphi m...

Give the procedure of the Delphi method. 1. The co-ordinator shows a specification and estimation form to each expert. 2. Co-ordinator calls a group meeting in which the exp

Ball game, I need the code for creating a simple ball game on net beans/Ope...

I need the code for creating a simple ball game on net beans/Open gl

Use case realization, Develop a domain model for the Case Study. Express yo...

Develop a domain model for the Case Study. Express your model with a class diagram, showing any inheritance and compositional relationships. For each of the two selected most es

Explain productivity and difficulty, Productivity and difficulty Produ...

Productivity and difficulty Productivity refers to metrics and measures of output from production processes, per unit of input. Productivity P may be conceived of as a metric

Draw an entity relationship diagram, Problem: (a) Draw an Entity Relat...

Problem: (a) Draw an Entity Relationship Diagram for the given case study. Show entities and relationships on the diagram (attributes should not be shown). Cardinality and op

What is stepwise refinement, What is stepwise refinement? Stepwise Ref...

What is stepwise refinement? Stepwise Refinement:- Stepwise Refinement is a top-down design method originally proposed by Niklaus Wirth. A program is developed by successively

What is fault tree analysis, What is Fault Tree Analysis? Ans) A form of...

What is Fault Tree Analysis? Ans) A form of safety examines that assesses hardware safety to give failure statistics and sensitivity analyses that point to the possible effect o

What is peer reviews, What is Peer Reviews? Ans) A methodical examinatio...

What is Peer Reviews? Ans) A methodical examination of software work products by the producer's peers to recognize defects and areas where changes are required.

Data dictionary , data dictionary of online banking system

data dictionary of online banking system

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd