Human factors, understanding humans in the context of systems around them
Facious Lille Bomin
What a designer has to consider when developing a product to make it fit
Study of the human body, including different shapes and sizes, measurements like height and weight
These help designers get a sense of the human form
Antropomenic factors
Measurements of the human body, including dimensions of the human form
Ergonomic factors
Comfort - how will the product feel to the customer?
Safety - are there any sharp edges the customer could get injured on?
Anthropometric data
Hand size
Hip
Height
Hand height
90% of population are catered for
Different people have different needs, which need to be taken into account when making and designing a product
Primary research methods
Original sources
Market research
Questionnaires
Client interviews
Existing product reviews
Focus groups
Anthropometrics
The study of body measurements and their relationship to the surrounding environment
Systems thinking
A top-down approach that starts with an overview of the system, its inputs, processes and outputs
Advantages of systems thinking
Doesn't require specialist knowledge
Easy to communicate how the system will work
Disadvantages of systems thinking
Larger system cost
Can lead to unnecessary complexity
Design philosophies
Iterative design
User-centred design
Systems thinking
User-centred design
Focuses on the needs and considerations of the end user at each stage of the design process
End user feels listened to and has a greater sense of ownership of the final product
Product is more likely to meet customer expectations
Iterative design
Allows for the discovery of problems early in the process
Each iteration is tested and evaluated, leading to changes and refinements
The Dyson vacuum cleaner was designed using an iterative approach, with multiple prototypes
Disadvantages of iterative design
Designers can become too focused on a particular task
Requires more time to meet a final design that the customer is happy with
Difficult to move forward if the design becomes too specific
User feedback is crucial in iterative design, as it provides evidence of progress to stakeholders and encourages focus on critical areas of the product
Each design is thoroughly tested and evaluated in iterative design, leading to a better overall product
Systems based approach
Often used when designing electronic and mechatronic systems, a top-down approach that starts with an overview of the system (input, process and output)
Systems thinking
Doesn't require specialist knowledge
Philosophies that guide the design process (iterative design, user-centred design, systems thinking)
Easy to communicate how the system will work
Helps designers become experts in a particular field
Helps with collaboration
Easy to find errors
Systems thinking
Larger system cost
Can lead to unnecessary complexity
User-centred design
An approach where the user's needs are considered extensively at each step
User-centred design
End user feels listened to and has a greater sense of ownership of the final product
Product is more likely to meet customer expectations
User-centred design
Requires more time to meet and discuss with customers
Customer feedback can be difficult to obtain
If the design becomes too complex it can become unviable to sell to the public
Iterative design
The process of repeatedly testing and evaluating a design, making changes and improvements with each iteration
Iterative design
Encourages focus on critical areas of the product
Each design is constantly repeated and varied
Evidence of progress can be given to stakeholders
Iterative design
Designers can become too attached to a particular solution
Can lead to an endless cycle of changes without a final product
Primary research methods
Market research
Questionnaires
Client interviews
Existing product reviews
Focus groups
Interviews with target market
Anthropometrics (body measurements)
Ergonomics (relationship between body measurements and surroundings)