IB Design Technology Topic B4.1.1 Production Systems…

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Customisation: Each product is unique, tailored to specific customer requirements.

Skill-Dependent: Relies heavily on the artisan's expertise and creativity.
Low Volume: Typically produces small quantities.

Advantages	Disadvantages
High Quality: Attention to detail ensures superior craftsmanship.	High Costs: Labor-intensive processes lead to higher production costs.
Flexibility: Easily adapts to custom orders and design changes.	Limited Scalability: Not suitable for mass production.

Mechanized Production

Machine Assistance: Machines perform repetitive tasks, while humans handle complex or creative aspects.

Increased Output: Higher production rates compared to craft production.

Advantages	Disadvantages
Efficiency: Machines reduce manual labor and production time.	Initial Investment: High cost of machinery and maintenance.
Consistency: Ensures uniformity in product quality.	Less Flexibility: Machines may not easily adapt to design changes.

Automated Production

High Automation: Machines handle most processes, from assembly to quality control.

Data-Driven: Uses sensors and software to monitor and optimize production.

Analogy

Think of automated production like a self-driving car.
Once set up, it operates independently, but requires initial programming and occasional oversight.

Advantages	Disadvantages
High Efficiency: Rapid production with minimal errors.	High Initial Costs: Significant investment in technology and infrastructure.
Cost Savings: Reduces labor costs and waste.	Limited Flexibility: Systems may require reprogramming for new products.

Assembly Line Production

Specialization: Workers or machines focus on one task, increasing efficiency.
High Volume: Ideal for mass production of standardized products.

Advantages	Disadvantages
Efficiency: Reduces production time and costs.	Inflexibility: Difficult to adapt to design changes or custom orders.
Consistency: Ensures uniform product quality.	Monotony: Repetitive tasks can lead to worker dissatisfaction.

Note

Assembly lines revolutionized manufacturing by introducing specialization and efficiency, but they require careful planning to avoid bottlenecks.

Hybrid Production Systems

Customization and Efficiency: Balances personalization with high-volume production.

Integrated Technologies: Uses a mix of manual labor, machines, and automation.

Advantages	Disadvantages
Flexibility: Adapts to changing demands and designs.	Complexity: Requires careful coordination of different systems.
Cost-Effective: Optimises resource use and reduces waste.	Higher Initial Costs: Investment in diverse technologies.

Example

Nike's Flyknit shoes are produced using a hybrid system.
Machines knit the upper part, while humans handle assembly and quality control.

Computer Integrated Manufacturing (CIM)

Integration: Connects design, manufacturing, and logistics in a single system.
Real-Time Data: Uses sensors and software to monitor and optimize processes.

Advantages	Disadvantages
Efficiency: Streamlines production, reducing lead times and costs.	High Initial Costs: Significant investment in technology and training.
Flexibility: Easily adapts to design changes and market demands.	Complexity: Requires skilled personnel to manage and maintain systems.

Choosing Between Them

Designers must select the best system by considering:
1. Volume needed: One-off or mass production?
2. Customization: Does it require personalization?
3. Skill level: Manual craftsmanship or machine precision?
4. Speed & cost: How fast and cost-effective does it need to be?
5. Complexity: Can it be standardized or is it intricate?
Read the six systems as a spectrum, not a list. At one end a skilled person does everything, at the other a computer does everything.
As you move along it, unit cost and speed improve, while flexibility and customisation get worse. That single trade is what the whole topic turns on.
Hybrid and CIM exist because manufacturers refuse to accept that trade, and try to buy back some flexibility with technology.
The system you choose is not the same question as the scale you produce at (B4.1.2) or the individual technique you use on each part (B4.1.3), though all three must agree.

Common Mistake

Mechanized is not the same as automated.
In a mechanized system the machine does the work but a human still controls it. Take the person away and it stops.
In an automated system the machine controls itself, and the human only supervises.
The test is simple: if nobody is there, does it keep working?

Example question

A workshop uses a lathe that a technician must operate and adjust continuously. Which production system is this? (1 mark)

A. Automated production

B. Mechanized production

C. Assembly line production

D. Computer integrated manufacturing

Solution

1 mark for the correct answer: B, mechanized production.

A machine is doing the physical work, so it is not craft. But a human is still controlling it, so it is not automated.
Automated is the trap. Apply the test: remove the technician and the lathe stops, so it cannot be automated.

Example question

A furniture company currently uses craft production to make handmade oak chairs. Demand has grown from 50 chairs a year to 5000, and they are considering moving to assembly line production.

(a) Discuss two advantages of moving to an assembly line. (4 marks)

(b) Discuss two disadvantages, and suggest a system that might resolve them. (4 marks)

Solution

(a) Award [1] for each advantage and [1] for developing it, up to [4 max].

Much lower cost per unit. [1] Work is divided into simple repeated tasks, so each worker becomes fast at one operation and less skilled (cheaper) labour can be used. [1]
Much higher output and greater consistency. [1] 5000 units a year is far beyond what craft production can deliver, and every chair comes out identical, which matters to a retailer. [1]

(b) Award [1] for each disadvantage and [1] for developing it, up to [3], plus [1] for a justified alternative system.

Loss of customisation and of the handmade character that the brand sells on. [1] Buyers paying a premium for a handmade oak chair may not want an identical mass-produced one, so the company risks destroying the value it had. [1]
Very high set-up cost and inflexibility. [1] The line is expensive to build and hard to change, so a redesign becomes costly and the company is locked in.
A hybrid system would resolve this: machine the standard components in volume, but have skilled craftspeople assemble and finish each chair. [1] This keeps the cost and output benefits while preserving the customisation and the handmade selling point.

Active recall

Name the six production systems on the syllabus.
What single test distinguishes mechanized from automated production?
As you move from craft towards CIM, what improves and what gets worse?
What problem does a hybrid system exist to solve?
What does CIM integrate that automation alone does not?

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Customisation: Each product is unique, tailored to specific customer requirements.

Skill-Dependent: Relies heavily on the artisan's expertise and creativity.
Low Volume: Typically produces small quantities.

Advantages	Disadvantages
High Quality: Attention to detail ensures superior craftsmanship.	High Costs: Labor-intensive processes lead to higher production costs.
Flexibility: Easily adapts to custom orders and design changes.	Limited Scalability: Not suitable for mass production.

Mechanized Production

Machine Assistance: Machines perform repetitive tasks, while humans handle complex or creative aspects.

Increased Output: Higher production rates compared to craft production.

Advantages	Disadvantages
Efficiency: Machines reduce manual labor and production time.	Initial Investment: High cost of machinery and maintenance.
Consistency: Ensures uniformity in product quality.	Less Flexibility: Machines may not easily adapt to design changes.

Automated Production

High Automation: Machines handle most processes, from assembly to quality control.

Data-Driven: Uses sensors and software to monitor and optimize production.

Analogy

Think of automated production like a self-driving car.
Once set up, it operates independently, but requires initial programming and occasional oversight.

Advantages	Disadvantages
High Efficiency: Rapid production with minimal errors.	High Initial Costs: Significant investment in technology and infrastructure.
Cost Savings: Reduces labor costs and waste.	Limited Flexibility: Systems may require reprogramming for new products.

Assembly Line Production

Specialization: Workers or machines focus on one task, increasing efficiency.
High Volume: Ideal for mass production of standardized products.

Advantages	Disadvantages
Efficiency: Reduces production time and costs.	Inflexibility: Difficult to adapt to design changes or custom orders.
Consistency: Ensures uniform product quality.	Monotony: Repetitive tasks can lead to worker dissatisfaction.

Note

Assembly lines revolutionized manufacturing by introducing specialization and efficiency, but they require careful planning to avoid bottlenecks.

Hybrid Production Systems

Customization and Efficiency: Balances personalization with high-volume production.

Integrated Technologies: Uses a mix of manual labor, machines, and automation.

Advantages	Disadvantages
Flexibility: Adapts to changing demands and designs.	Complexity: Requires careful coordination of different systems.
Cost-Effective: Optimises resource use and reduces waste.	Higher Initial Costs: Investment in diverse technologies.

Example

Nike's Flyknit shoes are produced using a hybrid system.
Machines knit the upper part, while humans handle assembly and quality control.

Computer Integrated Manufacturing (CIM)

Integration: Connects design, manufacturing, and logistics in a single system.
Real-Time Data: Uses sensors and software to monitor and optimize processes.

Advantages	Disadvantages
Efficiency: Streamlines production, reducing lead times and costs.	High Initial Costs: Significant investment in technology and training.
Flexibility: Easily adapts to design changes and market demands.	Complexity: Requires skilled personnel to manage and maintain systems.

Choosing Between Them

Designers must select the best system by considering:
1. Volume needed: One-off or mass production?
2. Customization: Does it require personalization?
3. Skill level: Manual craftsmanship or machine precision?
4. Speed & cost: How fast and cost-effective does it need to be?
5. Complexity: Can it be standardized or is it intricate?
Read the six systems as a spectrum, not a list. At one end a skilled person does everything, at the other a computer does everything.
As you move along it, unit cost and speed improve, while flexibility and customisation get worse. That single trade is what the whole topic turns on.
Hybrid and CIM exist because manufacturers refuse to accept that trade, and try to buy back some flexibility with technology.
The system you choose is not the same question as the scale you produce at (B4.1.2) or the individual technique you use on each part (B4.1.3), though all three must agree.

Common Mistake

Mechanized is not the same as automated.
In a mechanized system the machine does the work but a human still controls it. Take the person away and it stops.
In an automated system the machine controls itself, and the human only supervises.
The test is simple: if nobody is there, does it keep working?

Example question

A workshop uses a lathe that a technician must operate and adjust continuously. Which production system is this? (1 mark)

A. Automated production

B. Mechanized production

C. Assembly line production

D. Computer integrated manufacturing

Solution

1 mark for the correct answer: B, mechanized production.

A machine is doing the physical work, so it is not craft. But a human is still controlling it, so it is not automated.
Automated is the trap. Apply the test: remove the technician and the lathe stops, so it cannot be automated.

Example question

A furniture company currently uses craft production to make handmade oak chairs. Demand has grown from 50 chairs a year to 5000, and they are considering moving to assembly line production.

(a) Discuss two advantages of moving to an assembly line. (4 marks)

(b) Discuss two disadvantages, and suggest a system that might resolve them. (4 marks)

Solution

(a) Award [1] for each advantage and [1] for developing it, up to [4 max].

Much lower cost per unit. [1] Work is divided into simple repeated tasks, so each worker becomes fast at one operation and less skilled (cheaper) labour can be used. [1]
Much higher output and greater consistency. [1] 5000 units a year is far beyond what craft production can deliver, and every chair comes out identical, which matters to a retailer. [1]

(b) Award [1] for each disadvantage and [1] for developing it, up to [3], plus [1] for a justified alternative system.

Loss of customisation and of the handmade character that the brand sells on. [1] Buyers paying a premium for a handmade oak chair may not want an identical mass-produced one, so the company risks destroying the value it had. [1]
Very high set-up cost and inflexibility. [1] The line is expensive to build and hard to change, so a redesign becomes costly and the company is locked in.
A hybrid system would resolve this: machine the standard components in volume, but have skilled craftspeople assemble and finish each chair. [1] This keeps the cost and output benefits while preserving the customisation and the handmade selling point.

Active recall

Name the six production systems on the syllabus.
What single test distinguishes mechanized from automated production?
As you move from craft towards CIM, what improves and what gets worse?
What problem does a hybrid system exist to solve?
What does CIM integrate that automation alone does not?

IB Design Technology Topic B4.1.1: Production Systems Notes

IB Design Technology Topic B4.1.1: Production Systems Notes

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Mechanized Production

Automated Production

Assembly Line Production

Hybrid Production Systems

Computer Integrated Manufacturing (CIM)

Choosing Between Them

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Mechanized Production

Automated Production

Assembly Line Production

Hybrid Production Systems

Computer Integrated Manufacturing (CIM)

Choosing Between Them

A. Design in theory

B. Design in practice

C. Design in context

IB Design Technology Topic B4.1.1: Production Systems Notes

A. Design in theory

B. Design in practice

C. Design in context

IB Design Technology Topic B4.1.1: Production Systems Notes

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Mechanized Production

Automated Production

Assembly Line Production

Hybrid Production Systems

Computer Integrated Manufacturing (CIM)

Choosing Between Them

Production Systems: Who Does the Work, the Person or the Machine?

Craft Production

Mechanized Production

Automated Production

Assembly Line Production

Hybrid Production Systems

Computer Integrated Manufacturing (CIM)

Choosing Between Them