Explain in detail about functional modeling, Software Engineering

Assignment Help:

Explain in detail about Functional Modeling.

This model explains the computations that take place within a system.
This model is useful when the transformation from the inputs to outputs is difficult.
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 representation that depicts the information flow and the transforms that are applied as the data move from input to output.
Level 0 DFD also known as fundamental system model or context model shows the entire software as a single bubble with input and output data shown 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

Hatley and Pirbhai extension.
Ward and Meller extensions

Related Discussions:- Explain in detail about functional modeling

What is cmmi assessment, What is CMMI assessment? Examines the processe...

What is CMMI assessment? Examines the processes used in an organisation and assesses their maturity in every process area. Based on a 6-point scale: Not performed;

What are the benefits of using bi dashboards, Question: (a) Explain wha...

Question: (a) Explain what is meant by Dimensional Modeling as used in Business Intelligence (BI) solutions. (b) There has been a request from the Managing Director of an In

Feasibility analysis report, Aim to follow the weekly schedule - some time ...

Aim to follow the weekly schedule - some time in each tutorial class will be devoted to working in your teams of two under the guidance of your tutor on this project. However, te

Explain acceptance testing and beta testing, Explain acceptance testing and...

Explain acceptance testing and beta testing. Acceptance Testing and Beta testing : System tests are designed to validate a fully developed system to make sure that it meets

Explain the activities of software maintenance, The activities of software ...

The activities of software maintenance Software maintenance is a broad activity that contains error correction, increasing of capabilities, deletion of obsolete capabilities an

Case study - conference management system, This case study looks at the req...

This case study looks at the requirements for an information system to manage the organisation of an international academic conference. An academic conference consists of presenta

Iterative enhancement and evolutionary development model, Q. Differentiate ...

Q. Differentiate between iterative Enhancement Model and Evolutionary Development model. Ans. Iterative Enhancement Model: This model has the similar phases as the waterfall

Explain throw-away prototyping, Throw-away prototyping Objective: ...

Throw-away prototyping Objective: The principal objective of this model is to validate or to derive the system requirements. It is developed to reduce requir

Time Line Chart for Online Shopping Management , Sir I need a Basic Ready m...

Sir I need a Basic Ready made Time Line Chart for Online Shopping Management Project Because I have to submit the Project Report on 8 April 2013 So can u provide some urgent help n

Produce a use case diagram, ZeroJet, a new low cost airline, wants a brand ...

ZeroJet, a new low cost airline, wants a brand new web-based system to allow people to book seats for flights on-line. They want an automated check in system which has no staff.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages