Discuss in details about functional modeling, Software Engineering

Assignment Help:

Discuss in details about Functional Modeling.

This model describes the computations that take part within a system.
This model is helpful when the conversion from the inputs to outputs is complex.
The functional model of a system can be shown by a data Flow Diagram (DFD).

Data Flow Diagrams/Data Flow Graph/Bubble chart

A DFD is a graphical diagram that depicts the information flow and the change that are applied when the data shift from input to output.
Level 0 DFD also known as fundamental system model or context model which describes the total software act as a single bubble with input and output data indicated by incoming and outgoing arrows.
Level 1 DFD contains 5 or 6 bubbles. Every bubble can be refined at Layers to depict more details.

Extensions to Real Time Systems

Ward and Meller extensions
Hatley and Pirbhai extension.

Related Discussions:- Discuss in details about functional modeling

Define data objects and relationship, Define Data objects, attributes & rel...

Define Data objects, attributes & relationship. Data object: Representation of any collective information that must be understood by software. It can be any external entity.

Extract Caracthers froplat recognition, how to extract the characters from ...

how to extract the characters from the car plate image to the car plate recognition. matlab code

Define data dictionary, Define Data Dictionary. The data dictionary is ...

Define Data Dictionary. The data dictionary is defined as an organized collection of all the data elements of the system with accurate and rigorous definitions so that user and

Discuss the system quality attributes, Question 1 What are the advantages ...

Question 1 What are the advantages and disadvantages of layered systems? Question 2 Discuss the system quality attributes Question 3 Discuss the six components of

Define the prototyping model, Define the Prototyping Model In this mod...

Define the Prototyping Model In this model, a working model of actual software is developed originally. Prototype is just like a sample software having low reliability and les

Determine the technique - parallel, Determine the technique - Parallel ...

Determine the technique - Parallel With this approach, old and new systems are run together for a time - If new system goes down for any reason, you still have old system

Process models, Ask question what is abstraction ?#Minimum 100 words accept...

Ask question what is abstraction ?#Minimum 100 words accepted#

Explain in detail about the real time systems, Explain in detail about the ...

Explain in detail about the real time systems. Hard and soft real time systems. Real time and high performance. Real-Time control. Real time software design

What are the various categories of software, What are the various categorie...

What are the various categories of software? Application software System software Engineering/Scientific software Web Applications Embedded software Artificial I

Waterfall model is more advantageous than adhoc methods, Explain why waterf...

Explain why waterfall model is more advantageous than adhoc methods. Ad-hoc Process Models- "Process capability is unpredictable due to the software process is constantly

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages