DESIGN OF PRODUCTS AND SERVICES Chapter Three Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin.

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Presentation transcript:

DESIGN OF PRODUCTS AND SERVICES Chapter Three Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin

The Product Design Process  Companies continuously bring new products to market  Product design is integral to success  Product design differs significantly depending on the industry  Companies often outsource major functions  Contract manufacturer: an organization capable of manufacturing and/or purchasing all the components needed to produce a finished product 3-2

Core Competency  Core competency: the one thing a company can do better than its competitors  A core competency has three characteristics: 1. It provides potential access to a wide variety of markets 2. It increases perceived customer benefits 3. It is hard for competitors to imitate 3-3

 Defer judgment  Build on the ideas of others  Stay focused on the topic  One person at a time  Go for quantity  Encourage wild ideas  Be visual Brainstorming: A General Method for Problem Solving 3-4

Six Phases of the Generic Development Process (Formal Process)  Phase 0: Planning  Phase 1: Concept development  Phase 2: System-level design  Phase 3: Design detail  Phase 4: Testing and refinement  Phase 5: Production ramp-up 3-5

Phase 0: Planning  Precedes project approval  Begins with corporate strategy  Includes assessment of technology developments and market objectives  Output is the project mission statement 3-6

Phase 1: Concept Development  Needs of the target market are identified  Alternative product concepts are generated and evaluated  One or more concepts are selected for further development and testing  Concept: a description of the form, function, and features of a product 3-7

Phase 2: System-Level Design  Definition of the product architecture  Decomposition of the product into subsystems and components  Final assembly scheme for the production system is usually defined  Output:  Geometric layout of the product  Functional specifications for each subsystem  Preliminary process flow diagram 3-8

Phase 3: Design Detail  Complete specification of the geometry, materials, and tolerances for all parts  Identification of all the standard parts to be purchased from suppliers  Process plan is established  Tooling is designed  Output:  Drawings describing the geometry of each part and its tooling  Specifications of purchased parts  Process plan 3-9

Phase 4: Testing and Refinement  Construction and evaluation of multiple preproduction versions of product  Same geometry and material as production version  Not necessarily fabricated with the actual production processes  Prototypes tested to determine if the product will work as designed 3-10

Phase 5: Production Ramp-Up  Product is made using the intended production system  Need to train workers and resolve any remaining problems  Products may be supplied to preferred customers for evaluation  Transition to ongoing production is gradual 3-11

The Generic Product Development Process 3-12

Generic Product Development Process  Technology-push products: firm begins with new technology and looks for a market  Platform products: built around a preexisting technological subsystem  Process-intensive products: production process has an impact on the properties of the product  Product design cannot be separated from process design 3-13

Generic Product Development Process Continued  Customized products: new products are slight variations of existing configurations  High-risk products: technical or market uncertainties create high risks of failure  Quick-build products: rapid modeling and prototyping enables many design-build-test cycles 3-14

Generic Product Development Process Continued  Complex systems: systems must be decomposed into several subsystems and many components  Generic: begins with a market opportunity and team selects appropriate technologies to meet customer needs 3-15

Summary of Variants of Generic Product Development Process 3-16

Quality Function Deployment Value Analysis/ Value Engineering Ideal Customer Product House of Quality Designing for the Customer 3-17

Quality Function Deployment  Interfunctional teams from marketing, design engineering, and manufacturing  Begins with listening to the customer  Uses market research  Customer preferences are defined and broken down into customer requirements  House of quality 3-18

Completed House of Quality Matrix for a Car Door Customer requirements information forms the basis for this matrix, used to translate them into operating or engineering goals 3-19

Value Analysis/Value Engineering (VA/VE)  Purpose is to simplify products and processes  Objective is to achieve better performance at a lower cost while maintaining all functional requirements defined by the customer  Does the item have any design features that are not necessary?  Can two or more parts be combined into one?  How can we cut down the weight?  Are there nonstandard parts that can be eliminated? 3-20

Designing Products for Manufacture and Assembly  Traditional approach  “We design it, you build it” or “over the wall”  Concurrent engineering  “Let’s work together simultaneously” 3-21

Design for Manufacturing and Assembly  Greatest improvements related to DFMA arise from simplification of the product by reducing the number of separate parts: 1. During the operation of the product, does the part move relative to all other parts already assembled? 2. Must the part be of a different material or be isolated from other parts already assembled? 3. Must the part be separate from all other parts to allow the disassembly of the product for adjustment or maintenance? 3-22

Ecodesign  Ecodesign: the incorporation of environmental considerations in the design and development of products or services  The whole life cycle is considered  The product is considered as a system  A multi-criteria approach is used  Application of ecodesign can benefit business 3-23

Designing Service Products  Service products are very different  Direct customer involvement introduces significant variability in the process  Questions to address:  How will this variability be addressed?  What are the implications for operational cost and the customer service experience? 3-24

Three General Factors for Determining Fit 1.Service experience fit The new service should fit into the current service experience for the customer 2.Operational fit Existing processes should be able to support the operation of the new service 3.Financial impact Introducing a new service should be financially justified 3-25

Structural Alternatives for a Family Restaurant 3-26

Economic Analysis of Project Development Costs  Using measurable factors to help determine:  Go/no-go milestones  Operational design and development decisions  Building a base-case financial model  A financial model consisting of major cash flows  Sensitivity analysis for “what if” questions 3-27

Merging the Project Financials and Schedule into a Cash Flow Report 3-28

Possible Sensitivity Analysis Scenarios  Longer product development time  Higher/lower sales volume  Higher/lower sales price  Higher/lower development costs 3-29

Measuring Product Development Performance  A steady stream of new products is important to competitiveness  Firms must respond to changing customer needs and competitor moves  Ability to identify opportunities and bring new products to market is critical  Must also be efficient 3-30

Performance Measures for Development Projects 3-31