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

What is internal interrupt, Internal Interrupt Cause because of illegal...

Internal Interrupt Cause because of illegal or erroneous use of an instruction or data. Internal interrupts are also known as traps. Internal interrupts are initiated because o

Define kpas level associated with maturity model, Define KPAs level associa...

Define KPAs level associated with maturity model KPAs are defined by SEI and associated with different maturity levels. These are described below: Level 1 KPAs : There is

JAVA PROGRAMMING, Write a test program that read an integer n and call a me...

Write a test program that read an integer n and call a method to display a pattern as follows: 1 2 1 3 2 1 4 3 2 1 ... n n-1 ... 3 2 1 The method header is

What are basic key process areas in cmm, Q. What are basic Key process area...

Q. What are basic Key process areas in CMM? Ans) Key Process Areas (KPAs) adds the areas an organization could focus to improve its software process to the next level. Except f

Define the level 1 of maturity model, Define the Level 1 of maturity model ...

Define the Level 1 of maturity model At this maturitylevel,software is developed an ad hoc basis and nonstrategic technique is used for its development. Success of developed s

Define about the software development life cycle, Define about the Software...

Define about the Software Development Life Cycle The different steps (known as phases) that are adopted in development of this process are collectively called as Software Devel

Explain the length of identifiers, Explain the Length of identifiers L...

Explain the Length of identifiers Length of identifiers :- This is a measure of the average length of separate identifiers in a program. The longer the identifiers, the more

Discuss in detail about cocomo model, Discuss in detail about COCOMO model....

Discuss in detail about COCOMO model. Constructive Cost Model. Software cost estimation gives the opportunity to estimate of how much months a man take to develop a softw

Explain the corba component model types, Question 1: a. What are the F...

Question 1: a. What are the Facets of Component that you know about ? b. Explain the CORBA component Model types ? c. Talk about the three concepts that you should keep

Illustrate the example of data dictionary of payroll, Illustrate the exampl...

Illustrate the example of Data dictionary of payroll Data dictionary of payroll may include below fields: PAYROLL = [Payroll Details] = @ employee name + employee + id

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages