Sub-problem Flow Chart

Affordable product that is easy to use and can elevate target User Safely, Effectively and can be transported and stored easily in the home.

Elevate effectively

Affordable

Easy to use

Safe Operation

Portable

Easily transported

Easily stored

Able to support body weight

Sufficient reach

Sufficiently fast

Low Selling Price

Sufficient Lifespan

Low physical strength requirement

Minimum user movement required

Fatigue Resistance

Corrosion resistance

Prevent Injury due to product failure (Reliability)

Prevent Injury due to user failure

Prevent injury when user slips or falls

Prevent user strain injury

Fall prevention

Low step requirement

Stability

Easily moved

Compact when stored

User inputs reachable from standing

Insulation from heat and electricity

Soft Edges

Covered part cross/slide boundaries

Use locking mechanisms

Product tilting prevention

Sufficient part strength

Use standard parts

Lightweight Materials

Simple set-up

Simple first-time installation

Simple everyday setup

Strong structure

No special installation tools

Few installation steps

Use cheap materials

Use cheap manufacturing processes

Few Setup Steps

Easy Setup Steps

Intuitive symbols

Low Complexity Steps

Low dexterity requirement

Intuitive Physical Movements

Use of large muscle groups

Low moving-part resistance

Low speed

Fall barrier

Fast operating speed

Low part internal stress

strong materials

Cheap, strong, lightweight Materials

Fastest possible speed within safety limits