ColdCup Co. (CCC) manufactures reusable insulated cups for coffee shops. CCC has grown rapidly after several large chains began selling its cups under their own brands. However, CCC’s operations director is concerned that production is becoming inefficient. Finished cups are stored for up to six weeks, some colours are overproduced, and workers often wait for printed lids from a supplier before orders can be completed. Last month, 8% of cups required rework because lids did not fit properly.

The operations director wants to introduce lean production, including just-in-time (JIT) deliveries of lids and weekly kaizen meetings for production employees. The finance director supports lower inventory levels but is worried that JIT would make CCC too dependent on one lid supplier. Some supervisors also believe that kaizen meetings will reduce production time and may encourage workers to challenge existing procedures.

SoundLoop (SL) manufactures wireless headphones. Its current model is difficult to repair because the battery, casing and speakers are glued together. Customer reviews praise the sound quality but criticize short product life and high repair costs. Several electronics retailers have told SL that they prefer suppliers with circular business models and clear evidence of sustainable operations.

SL’s design team proposes a cradle to cradle approach for the next model. The headphones would be designed for disassembly, use a higher proportion of recycled materials and include a take-back scheme so that parts can be refurbished or recycled. SL would also introduce quality circles to identify production problems with the new modular design. The marketing director believes this would differentiate SL’s brand. The operations director is concerned that recycled materials may be less reliable and that the new design will increase production complexity.

TrailStep (TS) produces mid-priced hiking shoes. Its current shoes use glued layers of rubber, foam and synthetic fabric. Most damaged shoes are thrown away because the materials cannot be separated. Environmental pressure groups have criticized TS for waste, and two major outdoor retailers have asked suppliers to show evidence of sustainable production and recognized quality standards.

TS’s product development manager proposes redesigning the next hiking shoe using cradle to cradle principles. The redesigned shoe would use fewer toxic adhesives, detachable soles and recycled fabric that could be reused in a future product. TS would also seek certification against a relevant international quality-management standard, to provide external evidence of documented process control and consistency; separate product testing would be needed to establish shoe durability. The proposal would increase design and testing costs, and some managers are worried that recycled materials may reduce customer perceptions of quality.

MedPrint Labs (MPL) manufactures customized 3D-printed dental aligners for orthodontic clinics. Demand has increased quickly, but MPL has missed several delivery deadlines. Its current system relies on quality control: technicians inspect completed aligners at the end of production and reject those that do not match the digital design. Rejected aligners must be printed again, delaying clinic appointments.

MPL’s operations manager wants to introduce total quality management (TQM). The plan includes quality assurance procedures at each stage, quality circles involving technicians and design staff, benchmarking MPL’s defect rate and delivery time against a leading dental laboratory, and collecting weekly data on errors. Some employees argue that the current final inspection system is simpler and that TQM will create too many meetings and records.

NovaBake (NB) manufactures frozen artisan pastries for independent cafés. NB currently uses batch production and keeps high levels of butter, flour and frozen finished goods in stock. The operations director believes that NB is losing contracts because of inconsistent quality and slow delivery. She is considering introducing lean production, including kaizen meetings, just-in-time (JIT) deliveries from two local suppliers and employee training in total quality management (TQM).

NB’s finance director is concerned that the forecast savings may be overestimated. Café demand changes significantly during holiday periods and one of the local butter suppliers has previously had delivery problems. Production employees are worried that lean production is a way to reduce the workforce, although management says that no redundancies are planned.

Orion Diagnostics (OD) manufactures disposable testing cartridges used by small medical clinics. OD currently relies mainly on quality control: a sample of completed cartridges is tested at the end of the production line. Recently, two batches failed final inspection and a large hospital group refused to renew its contract unless OD gained a recognized international quality standard.

OD’s managing director proposes replacing most end-of-line inspection with a quality assurance system, including documented procedures, supplier certification, staff training and external audits for the international standard. The production manager supports the proposal, arguing that OD must prevent defects rather than discover them after production. However, the finance director believes that certification will be expensive and bureaucratic for a medium-sized business.

Harvest Loop (HL) — a social enterprise producing school meals

Read the resources and answer the questions that follow.

Resource 1 — Background

Harvest Loop (HL) is a social enterprise that prepares low-cost, nutritious lunches for schools in a large city. Its social objectives are to reduce child hunger and reduce food waste. HL buys surplus vegetables from local farms and uses paid employees together with trained volunteers. Any surplus is reinvested in free breakfast clubs.

HL currently uses batch production in a rented kitchen. Demand from schools is rising, but HL has experienced delays, wasted ingredients and inconsistent meal quality. The operations manager wants to introduce lean production over the next two years, including continuous improvement (kaizen), just-in-time (JIT) deliveries from farms and total quality management (TQM).

Resource 2 — Selected operations data for HL

Resource 3 — Supplier information

HL buys from 18 small local farms. Eight farms have refrigerated delivery vehicles; ten do not. Two farms have missed deliveries during recent extreme weather. Farmers support HL’s social mission but are concerned that JIT could transfer more risk to them.

Resource 4 — Quotation from HL’s kitchen supervisor

“Employees and volunteers have many ideas for reducing wasted movement and improving meal quality, but they are rarely asked. Some staff fear lean production is just a way to cut jobs or make everyone work faster.”

Resource 5 — Social media statistic

A post about HL’s food-waste reduction work was shared 42 000 times in one week. Several local businesses offered to sponsor equipment if HL can demonstrate measurable quality and sustainability improvements.

ReThread Works (RTW) — a social enterprise making refurbished uniforms

Read the resources and answer the questions that follow.

Resource 1 — Background

ReThread Works (RTW) is a social enterprise that collects used school and work uniforms, repairs them and sells them at affordable prices to low-income families. RTW also trains unemployed young adults in sewing, repair and stock management. Its mission statement is: “No usable clothing should become waste while families cannot afford basic uniforms.”

RTW has grown through donations and local grants. It now wants to supply refurbished uniforms to three national school chains. To win the contracts, RTW may need to redesign its operations around cradle to cradle principles and gain a recognized national quality standard within 18 months.

Resource 2 — Current quality and operations issues

Resource 3 — Proposed cradle to cradle changes

RTW is considering using detachable labels, standardized buttons, repairable seams and mono-material packaging. A local textile recycler has offered to turn unusable fabric into new thread, but RTW would need to sort donated clothing more accurately.

Resource 4 — Quality standard requirement

The national school chains require suppliers to show documented procedures, traceability of materials, consistent sizing, safe dyes and regular external audits. Certification would cost RTW 35 000 monetary units in the first year and require 120 hours of staff training.

Resource 5 — Quotation from a trainee

“Learning repair skills has changed my confidence. But when donated clothes arrive mixed together, we waste hours looking for matching fabric, buttons and labels. Sometimes we repair an item and then it fails the final check.”

Resource 6 — Social media statistic

RTW has 86 000 followers on social media. A recent video showing trainees turning damaged jackets into usable uniforms received 1.2 million views.

ClearCycle Mobility (CCM) — a social enterprise repairing e-bikes

Read the resources and answer the questions that follow.

Resource 1 — Background

ClearCycle Mobility (CCM) is a social enterprise that repairs donated and damaged e-bikes, then leases them at low cost to healthcare workers and students. CCM also provides repair training for refugees. Its social objectives are to improve access to affordable transport, reduce e-waste and build employability skills.

Demand for CCM’s leased e-bikes is rising. However, quality problems have increased as volunteers, trainees and paid mechanics work together in a crowded workshop. The board is considering a major operations change: introducing total quality management (TQM), quality circles and benchmarking against a commercial e-bike repair chain. It is also considering holding fewer spare parts to reduce cash tied up in stock.

Resource 2 — Selected performance data

Resource 3 — Quality problem

A local newspaper reported that three leased e-bikes had battery faults. No customers were injured, but CCM’s waiting list fell by 18% in the following month.

Resource 4 — Quotation from the operations director

“We can learn from the commercial benchmark, but we must not become a business that focuses only on speed. Our trainees need time to learn safely. Quality should be built into every repair, not inspected only when an e-bike leaves the workshop.”

Resource 5 — Spare-parts supplier information

CCM buys batteries and brake components from two specialist suppliers. One offers lower prices but has variable delivery times. The other is more expensive but provides certified components and next-day delivery.

Resource 6 — Social media statistic

CCM’s online community has 54 000 followers. After the newspaper report, negative comments about safety increased sharply, but posts about refugee trainees still receive high engagement.