Human-Centered Design 

The objectives of design are that they should enhance human abilities, should overcome human limitations, should foster user acceptance.The design issues, the first issue is formulating the right problem, the second is designing an appropriate solution, the third is developing it to perform well, and the fourth is assuring user satisfaction.Here are some guidelines while Nusharp design their quality tools.

Functionality

Leverage, scissors is a fulcrum type shearing tool. Since most are basically levers with the fulcrum in the middle, the ratio of the relative distance of the squeezing point and cutting point form the fulcrum determines the force and movement ratio.  Nusharp will select the optimal ratio for the purpose of tools, offering the most efficient and smooth run.

Sharpness is determined by the angle of the cutting edge.The sharper the cutting edge is, the faster the tool dulls. Nusharp select the best angle of the cutting edge to its application. Therefore the shape and type of cutting edge are paramount important in scissors design.

Reference cutting angle for various scissors and shears: 25°for home barber, embroidery, nail, cuticle shears; 35° for fabric, poultry shears; 35° to 45° for tailor, leather, professional barber shears; 50° for knife edge, one blade 50°, the other is 10° to 20°.

The edge of blade, besides cutting edge, is another factor that determines the maneuverability of shears.  Nusharp always configures the best arrangement of bevel edge angle and its internal side to achieve the best cutting ability by flat grinding or hollow grinding.  Serrations are fine lines or teeth ground into the edge of one blade.  The serration holds the material, keeping it from being pushed forward.

More important than the serration is the actual cutting action. The ideal closing angle of the blades to one another is important.

Ergonomics

Modern dictionaries define Ergonomics as "The applied science of equipment design, as for the workplace, intended to maximize productivity by reducing operator fatigue and discomfort.  Also called biotechnology, human engineering, human factors engineering.”

There is no good design if ergonomics is ignored.  Nusharp always keep ergonomic requirement in mind while in designing a shears, and would rather trade off the functionality to prevent operator from fatigue.  This is one of the objectives of design, overcome human limitation.

Aesthetics

Aesthetic trends are also extending to the inside of the appliance.

The original Greek 'aisthetika' means that which is perceptible through the senses.  The process of sensory perception in humans is complex and one which can provoke powerful responses in the enormous store of experiences, memories and behavioral patterns within people.  People can respond at a purely personal level or from a consensus cultural viewpoint as to what is right, acceptable, beautiful, or to what is not.  Aesthetics is not just concerned with the visual form, color, or texture of products, but with understanding and anticipating the effects of sensory stimulation on human perceptions and responses.
  　　　　　　　　　　　　 

Aesthetic issues have traditionally been explored through the arts and have reflected human values and aspirations of quality, 'rightness', beauty, proportion, balance, rhythm and scale.  The quality of the experience of beauty is descriptively elusive and designers must learn what constitutes beauty through qualitative means. 

Aesthetics is one of necessary features of any merchandise in today's commercial world.  We regard it as one of the major factors of product marketability.

As a value-driven company, the customer define the value, and as consumers respond aesthetics from a consensus cultural viewpoint, Nusharp spend all their efforts on functionality of product, and request ideal aesthetic requirement from their customers for their own market.  Materialize customers' concept is embedded in Nusharp's philosophy.