1© Dr MKAJ -SMJ 3513

Lecture 1Lecture 1

DESIGN: An OverviewDESIGN: An Overview

2© Dr MKAJ -SMJ 3513

What is Design?What is Design?

Everyone is directly or Everyone is directly or indirectly involved in Design:indirectly involved in Design:

PlanningExecut

eRefine

3© Dr MKAJ -SMJ 3513

Some DefinitionsSome Definitions

““Engineering design is the process of devising a system, component,Engineering design is the process of devising a system, component,

or process to meet desired needs. It is a decision making processor process to meet desired needs. It is a decision making process

(often iterative), in which the basic sciences, mathematics, and(often iterative), in which the basic sciences, mathematics, and

engineering sciences are applied to convert resources optimally toengineering sciences are applied to convert resources optimally to

meet a stated objective.”meet a stated objective.”ABET (Accreditation Board forABET (Accreditation Board for

Engineering and Technology)Engineering and Technology)

“Engineering design is a purposeful activity directed toward the goal of fulfilling human needs, particularly those which can be met by the technological factors of our culture.”

Asimow, M., Introduction to Design,

Prentice Hall, Englewood Cliffs, NJ, 1962

4© Dr MKAJ -SMJ 3513

Why Design?Why Design?

““Need”Need”

satisfying

5© Dr MKAJ -SMJ 3513

Human NeedsHuman Needs

COMPLEX:COMPLEX:

VaryVary across cultures, gender, age across cultures, gender, age groups, income level, climates, etcgroups, income level, climates, etc

Changes over timeChanges over time – – different different products over timeproducts over time

6© Dr MKAJ -SMJ 3513

Process of satisfying…Process of satisfying…

““It is a It is a processprocess of of searchingsearching for for solutions to satisfy human needs that solutions to satisfy human needs that requires right methods/techniques”requires right methods/techniques”

Correct understanding of Correct understanding of NEEDSNEEDS CREATIVE and INNOVATIVE CREATIVE and INNOVATIVE SolutionsSolutions

QUALITY achievementQUALITY achievement

7© Dr MKAJ -SMJ 3513

CREATIVE vs. CREATIVE vs. INNOVATIVEINNOVATIVE

CREATIVECREATIVE – having the ability to – having the ability to produceproduce new and original ideas and new and original ideas and things (that may or may not be useful)things (that may or may not be useful)

INNOVATIVEINNOVATIVE – having the ability to – having the ability to introduceintroduce something new, like an something new, like an idea, or method or invention (that is idea, or method or invention (that is often useful)often useful)

8© Dr MKAJ -SMJ 3513

Design, Engineering Design, Design, Engineering Design, Mechanical DesignMechanical Design

DESIGN

Engineering Design

Mechanical Design

9© Dr MKAJ -SMJ 3513

Design: A Multidisciplinary Design: A Multidisciplinary activityactivity

MaterialsMaterials

MarketingMarketing

AvionicsAvionics

AeronauticAeronauticalal

TestingTesting

GovernmenGovernmentt

ElectricalElectrical

MechanicaMechanicall

SoftwareSoftware

ProductionProduction