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9.6 In an essay, compare and contrast the three types of functional diagrams: functional block diagram,...

9.6 In an essay, compare and contrast the three types of functional diagrams: functional block diagram, functional flow diagram, and IDEF0. A table that lists the characteristics of each of the three would be a good start to this problem.

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Answer #1

Three types of functional diagrams

Characteristics

Block Diagrams

Flow Diagrams

IDEFO

What is?

A block diagram is a diagram of a system in which the principal parts or functions are characterized by blocks connected by lines that show the connections of the blocks.

A data-flow diagram is a technique of representing a flow of data of a process or a system.

IDEF0 is a model that contains a hierarchical series of diagrams, text, and glossary cross-referenced to each other.

Used for?

Block diagrams are typically used for a higher level.

DFDs were usually used to show data flow in a computer system.

It is used initially to define the necessities and specify the functions, and then to design an implementation that encounters the requirements and executes the functions.

Developed

block diagrams have been used from systems engineering to software engineering, since the late 1950s.

DFD originated from the Diagram used in the SADT methodology at the end of the 1970s.

It was derived from the SADT developed by Douglas T. Ross and SofTech, Inc.

The interactivity

This work proposes the design of block diagram style interactive simulation for digital signal processing

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Unlike the flow graph, the interactivity relationship can embrace data flow, raw material flow, management and other forms of control, resources.

focused/used for?

A block diagram is especially focused on the input and output of a system. It cares less about what happens to get from input to output.

The DFD provides information about the outputs and inputs of each entity and the process itself.

It is a graphical Process Modelling Methodology used to implement systems and engineer software.

Represents by

Block-diagrams use different boxes to represent classes and functions.

DFD uses several notations for displaying diagrams

For the diagram, it uses an activity boxes and arrows for giving directions to input and output.

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