2.6 Critical analysis and evaluation

Flashcards covering principles of critical analysis, product testing, professional standards, and market research methods as described in the lecture notes.

What is a primary goal of critical analysis and evaluation in the design process?

To develop knowledge and understanding of how to discuss products to lead to improvements or modifications of the original idea.

Why must products undergo rigorous testing before becoming commercially available?

To ensure they are safe, attractive, and comply with the requirements of user-centred design (UCD).

What is the role of third-party feedback and testing in the evaluation process?

It informs future modification and development and ensures objective and unbiased feedback from other interested parties.

Success in the design of products is dependent on what?

Fulfilling the specification set out in the initial stages of the design process.

What is the specific purpose of an anechoic chamber in vehicle testing?

It is an echo-free chamber used for testing a vehicle for noise.

How are wind tunnels used in the critical analysis of vehicles?

They are used to test vehicle aerodynamics.

How is 'critical analysis' defined in the context of the design process?

An in-depth, objective study of elements of a design, often linked to related research.

How does 'evaluation' differ from critical analysis?

Evaluation is more concerned with testing how effectively ideas and products satisfy the requirements of the specification.

What determines the key points that must be addressed in the final design?

The product specification, which is generated through investigative work.

List three examples of product specification points.

Ease of storage, spending limit for materials, and dimensions appropriate for anthropometric data.

What should be done during the design process to reduce the possibility of discovering deficiencies during final evaluation?

Ongoing analysis and evaluation of the designs should be carried out methodically and thoroughly.

What provides valuable opportunities to demonstrate advanced design skills in a final evaluation?

Well-reasoned critical analysis that highlights aspects where the specification has not been fully met.

What must the final evaluation section of a portfolio include?

A fully justified range of detailed, annotated design ideas for modifications addressing highlighted key issues.

Regarding the helicopter toy example, what was the issue identified during evaluation?

The toy did not fit easily in the toy storage box and had limited play value.

What was one proposed modification for the helicopter toy's storage issue?

Modify the design so that it is in several parts to be assembled by the child, creating a construction kit.

What additional value does redesigning a toy as a construction kit provide?

It adds educational play value and the possibility of creating additional models.

What is a primary investigation technique used to learn from professional designers?

The study of commercial products.

What does the disassembly of a commercial product allow a designer to study?

The manufacturing techniques involved and how the product satisfies its specification.

In the study of an electric drill, why would a designer gather anthropometric data?

To compare users' hand dimensions to the dimensions of the drill handle.

Name three safety features that could be studied in a commercial electric drill.

Double insulation, cable grip, and entry sleeve.

How can a manufacturer reduce the need for additional parts and manufacturing processes?

By using integral injection moulded features.

How can a designer identify budgetary constraints used by manufacturers?

By comparing similar products from economy and luxury ranges.

Why is it important to test products before they are commercially available in industry?

To identify design flaws that affect safety, which could result in harmful situations or expensive product recalls.

What was the cause of one of the most expensive recalls in aviation history involving the Boeing $787$ Dreamliner?

Lithium-ion batteries catching fire due to manufacturing and testing procedure errors.

What was the estimated cost to Boeing for the $787$ Dreamliner battery recall?

Several hundred million dollars.

How do independent, third-party organisations help manufacturers?

They reduce the likelihood of problems, ensure compliance with legislation, and provide appropriate certification.

What is the definition of 'third party feedback'?

Objective views about products from people and organisations that are not involved in their design or manufacture.

Which organisation is responsible for monitoring agencies that certificate testing and inspection in the UK?

The United Kingdom Accreditation Service (UKAS).

What is the BSI?

The British Standards Institution, the UK's most significant UKAS accredited organisation that publishes design and manufacture standards.

Which standard covers product manufacture, assembly, disassembly, and end-of-life processing?

BS $8887$

What process is covered by the standard BS EN ISO $6506$?

Brinell hardness testing of metals.

Which standard specifically relates to $13\text{-amp}$ plugs, sockets, and related equipment?

BS $1363$

What does the standard BS $1362$ specify?

Cartridge fuses for domestic plugs.

What is regulated by the standard ASTM F$3078$?

Lead content in paint used for toys and other products.

Which standard governs safety specifications for LED lighting?

BS EN $62031$

How is paint tested for compliance with ASTM F$3078$?

Samples are scraped off and subjected to high energy x-rays for element analysis.

Why is it critical to ensure low lead content in paint for children's toys?

Lead is poisonous and represents a particular danger to children.

What two marks can manufacturers display once they receive certification for compliance?

The CE mark or the BSI kitemark.

What is the purpose of the User Centred Design (UCD) approach?

To ensure that products are appealing for consumers to buy and use.

Why are market research organisations considered independent?

They are totally independent of the client companies that use their services.

What is a 'focus group' in market research?

A market research activity utilizing the views of members of a particular demographic group.

What is the definition of a 'demographic group'?

A specific category of the population, such as single men between the age of $21$ and $40$ who live with their parents.

How might clients observe a focus group without being seen?

Through a one-way mirror.

List three typical activities performed by a focus group.

Answering direct questions, physical interaction with products, and creating mood boards.

What is an example of an insight learned from a focus group regarding usability?

How easily users can change batteries or navigate control panels and screens.

Define the term 'Standards'.

Legislative requirements for a range of processes and products.

What does it mean if an organisation is 'Accredited'?

It has the qualifications necessary to carry out functions such as awarding certification for conformity.

Define the term 'Conformity'.

Reaching appropriate standards to obtain certification.

What is the definition of a 'Product recall'?

Taking products off the market and asking consumers to return them due to faults that must be rectified, usually for safety reasons.

What are 'objective (third party) views'?

Opinions that are independent of any influence from interested parties.