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

Java, how to get values from list

how to get values from list

What is boundary data- Test data, What is boundary data- Test data Ex...

What is boundary data- Test data Extreme/boundary data -  This is data at the limits of validity/acceptability (for instance, if a date is being input, two values at the

Compute the mccobes cyclomatic complexity, Q. Compute the McCobes cyclomati...

Q. Compute the McCobes cyclomatic complexity? (i) compute the McCobe's cyclomatic complexity (ii) Find out independent path Ans (i) Cyclomate complexity V (

What is stochastic testing, Stochastic testing is the similar as "monkey te...

Stochastic testing is the similar as "monkey testing", but stochastic testing is a lot more technical sounding name for the similar testing process.

What is user friendly software, A computer program is "user friendly", when...

A computer program is "user friendly", when it is designed with simple of use, as one of the primary purposes of its design.

What is top-down testing, An integration testing methods that tests the hig...

An integration testing methods that tests the high-level components first using stubs for lower-level known as components that have not yet been integrated and that stimulate the n

Write down any four application of a stack, Write down any four application...

Write down any four application of a stack. (i)  Conversion of infix to postfix form (ii)  Reversing of a line. (iii) Removal of recursion (iv) Evaluating post fix expression

What are the various level of testing, Testing is a process of implementing...

Testing is a process of implementing a program with the intent of finding an error. Various level of testing are :    Unit Testing     Integrating testing     Valida

What are the various testing activities, What are the various testing activ...

What are the various testing activities? i. Test planning ii. Test execution iii. Test case design iv. Data collection v. Effective evaluation

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