The Design Process

Drawing And Design For Production

Engineering

What is Designing? It is simply translating ideas into

reality.

It is a technical form of problem solving.

Provides a plan to create, implement, evaluate, and improve a product or process.

The Design Process

Identify Problems & Opportunities

Framing a Design Brief

Investigation & Research

Generating Alternative Solutions

Choosing a Solution

Developmental Work

Modeling & Prototyping

Testing & Evaluating

Redesigning & Improving

Identify the Problem Identify and define

the problem. This step involves

investigating the needs and opportunities.

The problem must be real and clearly stated.

•survey/market research

•accident

•complaints

•need identified

Framing a Design Brief

Develop the “Design Brief”

This step involves clarifying the results you want to achieve

Stating pre-determined Specifications and criteria such as: time, cost, size, shape, materials, users, place of use, and special functions should be listed.

Design Brief( 2 Parts )

Give an introduction to the solution that you plan to implement. Restate the identification in a manner that reflects a solution.

List anticipated specifications and guidelines that the solution must follow.

This step often leads back to redesign of part or all of the solution and the process begins again.

Tests should be conducted on models and prototype.

Investigation and Research Gather all pertinent information for

future reference. This step should involve the

following resources: Human factors Ergonomics Existing devices and systems Existing knowledge and solutions

Generating Alternative Solutions Explore possible solutions. This stage involves brainstorming and

ideation. (some initial sketching of thumbnails is needed)

This step involves searching for solutions and information.

Several different solutions should be explored. Investigation may help clarify need or problem.

(Brainstorming) (Thumbnails)

Brainstorming Record your thoughts and ideas

with quick notes or sketches. Discuss these with your team

members. Record any tangent concepts . Investigate any additions, sources, or

ideas discussed. All solutions and ideas are welcome.

Thumbnail Sketches

Recorded ideas with quick sketches

Initial ideas with little thought to scale or accuracy

Can include some initial notes or ideas.

Choosing the Optimal Solution(s) Assess the alternatives. Refinement of preliminary ideas.

Annotated Sketches This step involves assessing all the

solutions generated and choosing the best one(s)

Implement the Design Matrix The best choice or choices move on to step

6

Annotated Sketches Refine your preliminary thumbnail

sketches. Add notes and comments Weigh your specifications

A Design Matrix Using a matrix, select a workable

solution

Developmental Work In this step you will further develop your

optimal choice(s). More support research… You will develop your initial drawings.

This step involves experimentation with: different materials mechanical systems (kinematics) Fastening techniques Shapes and sizes preliminary models

Drawings Working Drawings

Assembly Drawings

( Choose one of the above )

Working Drawings A drawing that

supplies information and instructions for the manufacture or construction of machines and structures.

Typically shows individual views of the object.

Modeling and Prototyping The last stage of a product prior to

testing and production This step involves the

development of models, and prototypes.(Types of Models)

Prototyping of Design Solutions

• Models are used as representations of system design for refinement and testing of the product. (3 types)

• Appearance - Looks like Model• Function - Works Like Model• Prototype - Looks like Works like

Model

Evaluate the results. This step involves testing the

solution and assessing the process. Demographic testing Survey groups Scientific testing and analysis

Testing And Evaluation

Assembling Drawing• A drawing showing the product in its completed state.

•An exploded assembly is a very common type of assembly drawing. It shows the individual pieces of the object unassembled, and it shows the pieces aligned to each other demonstrating how to assemble the object.