principles of engineering system design

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Principles of Principles of Engineering System Design Engineering System Design Dr T Asokan [email protected]. in

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Principles of Engineering System Design. Dr T Asokan [email protected]. Principles of Engineering System Design. GRAPHICAL MODELLING TECHNIQUES. Dr T Asokan [email protected]. MODELLING TCHNIQUES. Data Model : Relationships between data entities. - PowerPoint PPT Presentation

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Page 1: Principles of  Engineering System Design

Principles of Principles of

Engineering System DesignEngineering System Design

Dr T Asokan

[email protected]

Page 2: Principles of  Engineering System Design

Principles of Principles of

Engineering System DesignEngineering System Design

Dr T Asokan

[email protected]

GRAPHICAL MODELLING TECHNIQUES

Page 3: Principles of  Engineering System Design

MODELLING TCHNIQUES

• Data Model : Relationships between data entities.Ex: ER Diagrams, Higraph

• Process Model : Modelling of processes: what, when..

Ex: Data flow, N2. • Behavior Model: Control, activation,

termination of system functions

Ex: FFBD, Behavior diagrams, Petrinets

Page 4: Principles of  Engineering System Design

DATA Modelling

• Entity Relationship Diagrams– Models the data structures or relationships between data

entities ( An entity is a class of real, similar items like people, computer, books etc.)

– Creating ERD • Identify the entities• Determine significant events• Analyse nature of interactions• Draw ERD

– Complex ER Diagrams

Page 5: Principles of  Engineering System Design

HigraphsHigraphs are generalisation of complex ER diagrams. An entity is considered to be a set with multiple elements, called a blob