An open brief provides generalguidelines and offers the opportunity for a wide range of possible outcomes
A closed brief is more specific and detailed in its requirements. This gives the client greater control of the process but can limit the range of possible outcomes
A primary source is factual and comes from an original first hand account, such as the results of a questionnaire
A secondary source interprets primary information, for examples an analysis of the results of a questionnaire
information can be required for many reasons:
evaluateexisting products
analyse a design brief
refine a design proposal
evaluate a design proposal
There are multiple methods of gathering information
questionnaires
user trips
user trials
test rigs
use of secondary information
comparison to other products
a usertrip finds out how well a pre-existing product works
Things that should be considered while doing a user trip:
how its recorded - it can be photographed by an observer or but the person carrying out the trial
the conditions - it can be done at different times in the day or under different conditions
in a user trial a 'real user' tests a product in a relatively controlled environment where they are given a set of tasks t o complete
User trials are normally used to evaluate existing products but are often used on pre-production prototypes to identify any issues
Test rigs are often used to perform physical tests of products
Test rigs are often used on test prototypes as they can repeat many actions over a short period of time to simulate extended use of a
product
Secondary information can be gathered from a range of sources such as;
books, magazines and newspapers
tv and radio
the internet
information can be gathered by comparing to similar products
different ways of idea generation are;
brainstorming
boards
morphological analysis
analogy
SCAMPER
Brainstorming is done in a group as this creates more ideas than an individual and is an opportunity for a group of people to share their ideas
brainstorming can be productive and at a fast pace
an advantage of brainstorming is that group members will think differently and see the topic from a different perspective which can generate more ideas
the brainstorming process is as follows:
Problem is defined
Quantity not quality
Free thinking through word association
Combine, expand or improve previous ideas
Evaluate ideas at a later stage
Select ideas that have merit
disadvantages of brainstorming include;
Chain reaction thinking can encourage different lines of thinking being channelled into a limited number of ideas.
One person may suggest an idea that the others latch on to
A wider range of ideas may not be explored because of this
There are different types of boards;
lifestyle
mood
theme
mood boards are a range of visual images that are used to create a certain atmosphere which reflects a chosen mood
Mood boards can be created by the designer, the client or the consumer
Lifestyle boards are full of snapshots that will appeal to a certain target audience
a theme board is when a specific them is explored and researched and images are gathered that match the theme
morphologicalanalysis is a structured way of creating ideas
analogy can be used to used to apply existing knowledge to a new context
analogy can result in technology from one product being used for another product - this is called technology transfer
SCAMPER stands for;
Substitute
Combine
Adapt
Modify
Put to another use
Eliminate
Reverse
a technical specification describes what the product does after it has been designed
Purpose of Technical Specification;
• provides specific technical detail required to manufacture product
• produced after the product is designed and tested to provide specific technical information
Type of information that should be included in a technical specification;
materials
processes to be used
assembly methods
production costs
dimensions
weight
maintenance cycles
performance
power supply
comply with safety standards
a product design specification describes the requirements of the solution. This is for products that have notyet been designed
PDS stands for product design specification
a product specification defines specific parameters, provides direction to the design process and is used to evaluate changes in decisions
type of information that should be included in a productdesign specification;
number to be produced
target market
cost
impact on environment
dimensions
information relating to design factors
environment it'll be used in
Marketing specification provides specific detail required to advertise, market and sell the product. They're produced prior to launching a products advertising and marketing plan
type of information used in marketing specifications;