Principles of Design

Principles of Design
1) Domains of Design
2) Incorporating new functional logic for innovation
3) Managing complex designs
1) Domains of Design
Functional domain
Objective of design is always started
Functional requirements
Innovative software design
Physical domain
The physical solution is always generated
Design parameters
Innovation hardware design – Physical forms
2) Incorporating new functional logic for innovation
Technical Progress
Scaling up of previous techniques
Increasing the numbers of transistors on a chip
3) Managing complex Design
Decomposition of a complex design
Metal removal device
For the practice of good engineering design, two general axioms
are…
The independence axiom – Main the independence of
functional requirement in the design
The Information axiom – Design the functions to require
minimal information from prior factions / from the outside to
perform the function.
Market & Performance / Cost Trade offs in Design
Different markets for new technology may value the
performance / cost handle trade off differently
Military Market Performance – valued over cost
Industrial Market Performance – valued at a cost – Appropriate return on
investment
Business Market Performance – valued within the upper boundaries of the
business practices of monthly expenses
Hobbyist Market Performance – valued within the upper boundary of
disposable recreational income
Consumer Market Performance – valued within price ranges of comparable
categories of consumer purchases
Service Technologies & Software Design
Service applications are the information, communication &
control procedures.
Large software development projects confront two major
obstacles…
Large projects are put performed by one or two people
Oveall system complexity
Three major design sources of commercial failure in software
are…
Incompleteness of understanding the boundaries of the
software application
Lack of insightfulness about the key logic features of the
application
Failure to rid the software of buss