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 software metric, What is Software metric? Any type of measureme...

What is Software metric? Any type of measurement which relate to a software system, process or related documentation Lines of code in a program, the Fog index, number of

Computer science, Write a report that explains the agile principles for rap...

Write a report that explains the agile principles for rapid software development, and recommend and justify an appropriate method for adoption.

Pareto charts, Two partners in an upholstery business are interested in dec...

Two partners in an upholstery business are interested in decreasing the number of complaints from customers who have had furniture reupholstered by their staff. For the past six mo

SYSTEM ANALAYSIS AND DESIGN , #questionHomes R Us is a group of large depar...

#questionHomes R Us is a group of large department stores who wish to improve the customer service they decide they need a database to capture and store information relating to cus

Distinguish between verification and validation, Distinguish between verifi...

Distinguish between verification and validation. Verification refers to the set of activities that make sure that software correctly executes a specific function. Validation re

Explain hybrid design, Hybrid design: Pure top-down or pure bottom up appr...

Hybrid design: Pure top-down or pure bottom up approaches are often not practical thus hybrid approach which combines  the above two approaches is often used.

Describe the method of technical documentation, Describe the method of Tech...

Describe the method of Technical documentation This usually comprises: - Program listing/coding -  Programming language(s) used  - Algorithm/Flowchart -  Purpose o

Differentiate between smoke testing and sanity testing, Differentiate betwe...

Differentiate between smoke testing and sanity testing. -Smoke testing verifies all areas of application; sanity testing recognizes one or few areas only. -Smoke testing is

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