Research libraryUtilisation Decides
Chapter 13 of 14 · Part IV · Draft web edition
The financial benefit is not a higher dashboard score; it is more good garments at acceptable labour, energy, capital and working-capital cost.
The cloth is woven from this chapter's 5 exhibits: each weft is one exhibit's own data, normalised; each warp group is a section. The probe reads the exhibit's own value where it crosses. Procedural visualisation, not a measurement.
Read-out
Derived with illustrative inputs: XAF 120,000 fixed shift production cost divided by 600 baseline good garments equals XAF 200.00 per garment. Sequential recovery of 150 availability-equivalent units (to 750 units, XAF 160.00), 100 performance-equivalent units (to 850 units, XAF 141.18) and 50 quality-equivalent units (to 900 units, XAF 133.33) reduces fixed cost per garment by XAF 66.67 (33.33 per cent). Multiplicative loss categories follow S04; underutilisation context follows R12.
Unit: XAF fixed cost per good garment. Status: derived. Sources: R12, S04.
Overture · 1 min
A garment factory does not bank an overall equipment effectiveness percentage or a theoretical line-balance ratio. It banks the margin between the revenue of shipped, first-quality garments and the total cost of the labour, electricity, materials, working capital and machinery required to produce them.[S04][S13] Across the preceding chapters, this paper has treated availability, speed, quality, standard minutes, constraint balancing and pull-based flow as one connected operating system. This chapter translates that operating system into unit economics. Its core argument is that unit cost falls sustainably only when real losses close at the system constraint without reappearing as rework, excess work in progress, exhausting overtime or oversized energy infrastructure.[S04][S30][S41][S44] In Cameroon, where reported capacity utilisation at incumbent textile plants stood between 10.83 and 48.9 per cent in July 2023 and underutilisation alone was reported to cost about CFAF 2 billion in 2020, the financial viability of domestic cotton-to-garment processing depends on how reliably installed lines convert attended hours into saleable output.[R06][R12]
13.1
Related · chapter 117 paragraphs step it
Read-out
Derived with illustrative inputs using the OEE loss structure in S04 and SMV accounting in S13: 500 scheduled shift garment equivalents less 50 availability loss and 70 speed loss leaves 380 gross pieces completed; 57 defective pieces (15 per cent first-pass defect share) reduce first-pass good output to 323 pieces, while inline re-sewing of 48 repairable pieces at 0.5 garment-equivalent cycle each displaces 24 additional new-garment equivalents of station capacity, leaving 299 net first-pass equivalents.
Unit: good-garment equivalents per shift. Status: derived. Sources: S04, S13.
Read this exhibit in its chapter ↗Every industrial garment programme commits to fixed and semi-fixed period costs before the first bundle leaves the cutting room. Building lease or depreciation charges, sewing and pressing machinery amortisation, core supervisory and administrative salaries, security, insurance, software licences and contracted demand charges for electricity accrue by the calendar month rather than by the finished piece.[S01][S34] When a sponsor evaluates a factory on its nameplate machine count, those period costs are divided in the business plan by an assumed volume that reflects continuous operation at nominal speed. On the floor, however, period costs can only be absorbed by good output: units that pass final inspection and meet the customer's delivery specification.[S04] Every availability stop, speed loss, balancing delay and rejected garment shrinks the denominator of good units while leaving fixed period obligations unchanged.[S02][S04]
The economic distance between installed capacity and absorbed cost is visible in Cameroon's textile record. While roughly 95 per cent of national cotton fibre is exported raw and about 5 per cent is processed locally against a national target of 50 per cent by 2030, existing industrial assets have struggled to convert physical plant into sustained output.[R06][R07] In the July 2023 account of incumbent manufacturer CICAM, capacity utilisation was reported at 33.7 per cent at Garoua, 48.9 per cent at CICAM 1 and 10.83 per cent at CICAM 2, with prior underutilisation reported to have cost roughly CFAF 2 billion in 2020.[R12] Restructuring cost estimates for the incumbent ranged from CFAF 30.7 billion to CFAF 48.2 billion, with one relaunch plan cited at CFAF 70.2 billion, whereas the Camtext SA project announced on 12 November 2025 carries a capital commitment of US$300 million (180 billion XAF) to process 12,000 tonnes a year, with a projected return on investment near 11 years and optimal capacity around 2033.[R09][R10][R13] Whether restructuring legacy lines or commissioning greenfield capacity, capital recovery is governed by the volume of good output crossing the finishing boundary each shift.[R10][R12]
GFT's Cameroon textile programme treats capacity utilisation and effective labour cost as the primary swing variables in factory unit economics. In a dependent sewing line, fixed-cost absorption is governed by the rate of good garments emerging from the constraint operation, not by average station busyness.[S30] If an upstream station runs fast while the bottleneck is starved, blocked or stopped for adjustment, the factory accumulates work in progress (WIP) rather than finished goods.[S09][S20][S30] Under Little's Law, for a stable system in long-term average conditions, extra WIP without a rise in constraint throughput simply lengthens throughput time, tying up working capital in cut fabric and delaying defect detection.[S22][S31][S32]
To keep unit economics grounded in physical reality, GFT separates five cost channels before claiming any financial gain from a productivity initiative:
The effect of closing multiplicative OEE losses on fixed-cost absorption is shown in Exhibit 61. In this derived model using illustrative inputs, a sewing line carries XAF 120,000 of fixed production cost per shift. When availability, performance and quality losses hold output to 600 good garments per shift, each garment absorbs XAF 200.00 of fixed cost.[S04] Recovering 150 good garments through availability, 100 through performance and 50 through first-pass quality raises shift output to 900 good garments and lowers fixed cost to XAF 133.33 per garment, a 33.33 per cent unit reduction achieved without adding machines.[S02][S04]
As Exhibit 61 demonstrates, the unit-cost reduction is largest on the initial recovery of good volume because fixed cost per unit follows a reciprocal curve against output.[S04] However, Exhibit 61 cannot establish that those 300 additional garments have a buyer or that material supply is available to feed the line. Producing 900 garments against a confirmed order of 600 without an authorised downstream pull signal merely converts cash into unsold stock.[S24][S28] Overhead absorption improves unit economics only when recovered capacity produces ordered, defect-free garments that convert into cash.[S04][S24]
13.4
Read-out
Derived with illustrative inputs using the SMV and efficiency formulas in S13 and S0402: operation SMVs of 0.8 + 1.2 + 0.6 = 2.6 minutes; 200 good pieces earn 520 standard minutes; 8 operators x 480 minutes = 3,840 attended minutes (13.54 percent efficiency). Intermediate loss buckets are illustrative allocations of the 3,320 unrecovered minutes.
Unit: labour minutes per shift. Status: derived. Sources: S13, S0402.
Read this exhibit in its chapter ↗13.4 · Introduction
Exhibit 16, chapter 04: Attended minutes
13.5 · Monthly wage comparisons mislead when divorced from standard minutes
A persistent error in industrial feasibility studies for emerging textile economies is to equate a low statutory minimum wage with a low unit labour cost.
Exhibit 16, chapter 04: Attended minutes
13.6 · Learning, turnover and rework multiply effective labour cost
Human proficiency and retention directly alter the denominator of earned minutes.
Exhibit 16, chapter 04: Unplanned downtime
13.4 · the bodyThe film above follows these sub-steps.
A persistent error in industrial feasibility studies for emerging textile economies is to equate a low statutory minimum wage with a low unit labour cost. In the shared evidence register, Cameroon's statutory minimum wage (SMIG) stood at XAF 41,875 a month in 2023 and was raised to XAF 43,969 a month from 23 February 2024, equivalent to about US$76 a month and representing a 5 per cent increase.[R14] By comparison, the register records an average salary across sectors in Cameroon of about US$359 a month, and a Cambodia garment-sector minimum wage benchmark of US$204 a month for 2024 (with currency conversions treated as estimates against a CFA franc peg of 655.957 per euro and reference ranges near 590 to 610 per US dollar in 2023 and 563 to 577 more recently).[R15][R17][R32] Looked at solely as monthly payroll figures in Exhibit 62, the statutory floor in Cameroon appears far below the Asian garment benchmark.[R14][R17]
equivalent to about US$76 a month and representing a 5 per cent increase
R14
The comparison in Exhibit 62 is incomplete for three operational reasons. First, a factory sells standard minutes of garment work content embedded in finished pieces, not attended months.[S13][S1301] Cut and Make (CM) labour cost per piece equals the garment's Standard Minute Value (SMV) multiplied by direct labour cost per attended minute, divided by achieved line efficiency.[S13][S1301] When line efficiency falls because of poor balancing, waiting for bundles, breakdowns or learning gaps, labour cost per earned minute rises in inverse proportion.[S09][S15][S1301] Second, factories require mechanics, inspectors, cutters, supervisors and planners paid well above the statutory minimum wage, moving blended payroll toward higher formal-sector brackets.[R14][R15][S40] Third, statutory working hours in Cameroon are bounded by the 40-hour non-agricultural week in the Labour Code, with a 48-hour maximum and overtime paid at 1.2 times the base rate.[R16][S33] Relying on chronic overtime to offset low daytime efficiency raises hourly wage rates while inducing fatigue that depresses output over the long run.[R16][S41]
Human proficiency and retention directly alter the denominator of earned minutes. In the apparel manual-skill study cited earlier, manual-machine operators increased their average capacity from 60.6 per cent to 79.4 per cent over six weeks.[S18] In the ILO SCORE case at Edget Garment in Ethiopia, line-balance efficiency rose from 24 per cent to 75 per cent and daily output increased from 50 to 120 pieces when work was rebalanced and workplace cooperation was introduced.[S37] Moreover, learned capability is perishable: in the UNU-WIDER panel study of Ethiopian manufacturing workers, almost one-third left before six months and half left within the first year.[S39] While that turnover rate is an Ethiopian observation rather than a Cameroon forecast, it demonstrates the cost mechanism: when an experienced operator leaves a critical station, the line returns to the lower end of the learning curve, training costs recur and downstream stations wait.[S18][S39]
Quality losses compound the labour penalty. When a garment fails inspection and requires unpicking and re-sewing, operator minutes consumed per unit rise while earned standard minutes remain fixed.[S04][S13] Individual piece-rate incentives that reward raw speed without a quality gate encourage operators to push defective bundles forward, creating long lead times and low quality as documented in NBER evidence.[S32] Conversely, the ILO Factory Improvement Toolset programme across Asian garment factories showed that structured industrial engineering raised sewing-room line achievement by 9.49 per cent while reducing both WIP and defects per hundred units by 22 per cent.[S12] Better Work Ethiopia similarly reported that lines led by newly trained supervisors achieved higher productivity and quality alongside reduced absenteeism.[S40]
13.7
Total Productive Maintenance (TPM) targets zero breakdowns and zero defects by eliminating six losses: equipment breakdown, setup and adjustment slowdowns, idling and short-term stoppages, reduced capacity, quality-related losses and startup or restart losses.[S02] Treating preventive maintenance as a deferrable discretionary expense misreads the cost of lost capacity. In the apparel monitoring study of Company X, cumulative downtime logs showed 4,923 minutes lost to technical malfunction, 3,694 minutes to machine adjustment, 2,432 minutes to faulty needles and 1,427 minutes to thread breakage, disrupting downstream flow and generating stitch defects.[S06][S09]
Empirical evidence from the NIST Manufacturing Extension Partnership (MEP) illustrates how structured maintenance translates into recovered capacity and avoided capital expenditure.[S08] In a documented NIST MEP case at a manufacturing cell experiencing recurring lathe breakdowns, implementing TPM reduced downtime, lifted cell productivity by about 22 per cent, raised OEE from 39 per cent to 45 per cent and cut lost capacity from 61 per cent to 55 per cent, as plotted in Exhibit 63.[S08] By recovering six percentage points of effective capacity on its bottleneck equipment and adding visual inspection cues, the plant avoided US$250,000 in new machine purchases.[S08]
Read-out
Sourced from the NIST MEP case study (2022-10-04): after Total Productive Maintenance was implemented on a bottleneck machining cell, OEE increased from 39 to 45 per cent and lost capacity fell from 61 to 55 per cent. Single-case non-apparel limitation applies; demonstrates the capacity-recovery mechanism.
Unit: per cent of cell capacity. Status: sourced. Sources: S08.
While Exhibit 63 records a single non-apparel case and is not a fixed forecast for a sewing room, its economic mechanism applies directly to garment assembly.[S08][S09] Before buying extra lockstitch or overlock machines to meet an order target, management should check whether existing machines are losing 40 to 60 per cent of planned time to avoidable breakdowns, needle faults and adjustments.[S08][S09] Buying machines to mask unmaintained equipment inflates capital outlay, floor congestion and electrical load without fixing underlying failure modes.[S02][S08]
…whether existing machines are losing 40 to 60 per cent of planned time to…
S08, S09
Not every minute of recovered machine availability carries the same financial value. Workstation OEE is affected by equipment-independent conditions such as input starvation.[S06] Conversely, Theory of Constraints establishes that an hour lost at the bottleneck is an hour lost for the whole line, whereas an hour lost at an unconstrained station with protective capacity may have zero effect on daily finished output.[S23][S30] GFT therefore evaluates maintenance economics across three operational tiers:
Interlude · the cloth half-woven
Woven: sections 13.0 to 13.7Still to weave: 13.10 to 13.17
Read-out
Sourced from World Bank research and Enterprise Survey indicators: unconditional average revenue-based total factor productivity (TFP) gap for outage-exposed manufacturers across 84 developing countries, 2006 to 2019 (S36); share of surveyed Cameroon firms experiencing electrical outages in 2024 (S0301); and average value lost due to electrical outages as a share of sales for affected Cameroon firms in 2024 (S0302). Cross-country and sector-aggregate figures are context, not a single-factory garment forecast.
Unit: percent. Status: sourced. Sources: S36, S0301, S0302.
Read this exhibit in its chapter ↗13.10
Read-out · sourced
Sourced from World Bank 84-country manufacturing study 2006 to 2019 (S36) and World Bank Enterprise Surveys Cameroon 2024 Country Profile published 2025 (S1202). The 9% TFP gap is a multi-country average across 84 developing economies, not a Cameroon-only econometric estimate.
Unit: reported survey and econometric indicators. Status: sourced. Sources: S36, S1202.
Read this exhibit in chapter 12 ↗In garment manufacturing, electricity powers sewing motors, cutting tables, air compressors, lighting, ventilation and electric steam or finishing loads.[S16][S43] In Cameroon, electricity regulator ARSEL issued Decision 00000427 on 12 December 2022 fixing untaxed electricity sale tariffs for medium-voltage (MT) customers served by utility ENEO.[S34] The regulatory text specifies two additive terms: a fixed monthly charge per kilowatt of subscribed demand and a variable charge per kilowatt-hour consumed, differentiated by operating hours and consumption schedules.[S34] Following a tariff freeze since 2012, the regulatory framework initiated progressive annual increases from 1 January 2023 through 2026 of 5 per cent per year for medium-voltage consumption between 0 and 3 MW and 10 per cent per year between 3 and 10 MW.[S1302]
This two-part, rising tariff architecture links production discipline directly to unit energy cost:
13.12
250 good units
250 good units: Total energy per garment 6, Variable process energy 2 (kWh per good garment) · derived
500 good units
500 good units: Total energy per garment 4, Variable process energy 2 (kWh per good garment) · derived
750 good units
750 good units: Total energy per garment 3.3, Variable process energy 2 (kWh per good garment) · derived
1,000 good units
1,000 good units: Total energy per garment 3, Variable process energy 2 (kWh per good garment) · derived
Derived with illustrative inputs using the UNIDO base-load mechanism (S44): fixed shift base load of 1,000 kWh plus variable process energy of 2.0 kWh per good garment. Across 250, 500, 750 and 1,000 good garments, total energy intensity falls from 6.00 to 4.00, 3.33 and 3.00 kWh per garment purely from spreading the fixed 1,000 kWh base load, while variable process energy remains flat at 2.00 kWh per garment.
Unit: kWh per good garment. Status: derived. Sources: S44.
13.12 · the bodyExhibit 64 above; its figures are illustrative where marked.
Sustainability scorecards and energy audits track specific energy consumption (SEC), defined as kilowatt-hours of electricity or megajoules of thermal energy per garment.[S44] UNIDO's Practical Guide for Implementing an Energy Management System warns that when a facility has a large fixed base load, production volume strongly distorts energy per unit.[S44] When volume rises, total energy is divided by more units, so the ratio falls and appears to show an improvement in energy performance even when no physical efficiency measure has occurred.[S44]
In a garment factory, base load is substantial: hall and compound lighting, IT servers, central ventilation, compressor pressure maintenance against pipe leaks, and steam-boiler standing losses draw energy whenever the building is open, while clutch motors or idle control boards draw standby power between sewing bursts.[S16][S19][S43][S44]
The separation between a denominator effect and a process-efficiency gain is illustrated in Exhibit 64. Using the derived illustrative inputs from the paper outline, suppose a plant section consumes a fixed base load of 1,000 kWh per shift plus 2.0 kWh of variable process energy per good garment.[S44] At 250 good garments per shift, total energy is $1,000 + (250 \times 2.0) = 1,500\text{ kWh}$, or 6.00 kWh per garment. At 500 good garments, intensity drops to 4.00 kWh per garment; at 750 good garments, it is 3.33 kWh per garment; and at 1,000 good garments, total energy is $3,000\text{ kWh}$, or 3.00 kWh per garment.[S44]
…a fixed base load of 1,000 kWh per shift plus 2.0 kWh of variable…
S44 · illustrative
As Exhibit 64 shows, moving from 500 to 1,000 good garments per shift cuts total energy per garment by 25 per cent (from 4.00 to 3.00 kWh) without changing a motor, insulating a pipe or sealing an air leak.[S44] Diluting the 1,000 kWh base load over 1,000 garments saves 1.00 kWh of electricity cost and carbon emissions per garment relative to running two separate shifts at 500 garments each.[S16][S44] Yet mistaking volume dilution for technical efficiency causes management to overlook the separate savings available from lowering the 1,000 kWh base load or the 2.00 kWh variable draw.[S43][S44]
moving from 500 to 1,000 good garments per shift cuts total energy per garment…
S44
To prevent denominator confusion in monthly reviews, GFT applies the linear energy-volume model from UNIDO practice:[S44]
$$E_{\text{total}} = E_{\text{base}} + b \cdot G_{\text{std}}$$
Here, $E_{\text{total}}$ is metered energy consumption, $E_{\text{base}}$ is fixed non-process base load, $b$ is marginal energy per unit, and $G_{\text{std}}$ is good output normalised by style work content (earned standard hours).[S13][S16][S44] Tracking $E_{\text{base}}$, $b$ and $G_{\text{std}}$ separately assigns ownership to production supervision (diluting $E_{\text{base}}$ over higher daytime $G_{\text{std}}$), facilities maintenance (cutting $E_{\text{base}}$ by isolating idle compressor loops, zoning lighting and insulating steam headers) and process engineering (reducing $b$ through servo drives, condensate recovery and fewer rework passes).[S02][S04][S16][S43][S44]
13.15
Where grid outages disrupt production and medium-voltage tariffs are rising, sponsors look to solar photovoltaics, battery storage and backup generators to protect availability.[S34][S35][S1302] However, sizing a solar array, battery bank or generator directly from the utility bills of an unoptimised plant is a costly error. UNIDO's industrial decarbonisation case study of Lotus Garments in Egypt states the rule directly: a plant must optimise its energy-management system through efficiency measures before investing in renewable applications.[S43]
Every kilowatt of avoidable base load (unsealed air mains, uninsulated steam pipes, or twenty lines running at 35 per cent efficiency when twelve balanced lines at 60 per cent could deliver the same good output) inflates peak demand and daily consumption.[S15][S43][S44] Sizing a solar-plus-storage microgrid before closing those operational and thermal losses forces the investor to buy solar panels, inverters and batteries simply to power air leaks, idle motors and rework loops.[S04][S43][S44] Closing production and energy losses first reshapes infrastructure sizing in four ways:
GFT note: Sequence operational loss closure before sizing power hardware
In GFT's Cameroon textile programme, the unit-economics, footprint and solar-storage workflows are linked by a mandatory stage gate. Project teams should not freeze capital specifications for rooftop solar, battery storage or backup generators from raw nameplate machine lists or unadjusted baseline bills.[S43][S44] First, establish the balanced line count required to meet good demand at realistic efficiency; second, separate essential sewing and cutting loads from reducible base loads; third, execute housekeeping and maintenance fixes on compressed air, lighting and steam; and only then size the hybrid power system around the verified daytime load profile.[S02][S35][S43][S44]
13.17
Exhibit 658 paragraphs step it
Read-out
| 1. Incremental good output | First-pass and approved garments per shift at constraint | Contribution margin or fixed-cost absorption per good unit | Count only if backed by confirmed buyer orders and material supply |
|---|---|---|---|
| 2. Direct labour efficiency | Attended labour minutes per earned standard minute (SMV) | Verified CPM and avoided overtime premium (1.2x base) | Do not count both headcount reduction and volume expansion from same hours |
| 3. Rework and scrap reduction | Defects per hundred units and unpicking minutes logged | Saved repair labour, thread, trim and avoided seconds discount | Exclude repair minutes already credited in net line efficiency |
| 4. Energy and demand savings | Intercept base load (kWh), slope (kWh/SMV) and peak kW | ARSEL MT fixed kW charge, variable kWh rate and diesel avoided | Separate volume-driven base-load dilution from technical efficiency |
| 5. Working-capital release | WIP pieces and throughput time across stable line boundary | Cost of capital on cut-fabric inventory and reduced floor space | One-off cash release on inventory reduction, not a recurring shift saving |
| 6. Intervention and operating cost | Hardware, software, training hours, spares and technician time | Full capital outlay plus recurring licence, calibration and wage uplift | Include ramp dip during changeover and ongoing supervisor time |
Illustrative GFT investment-evaluation table showing the six cost and benefit streams that must be reconciled from a measured pilot before capital release. Methodological boundaries follow S08 (maintenance capacity recovery), S09 (apparel OEE monitoring), S34 (two-part medium-voltage tariff) and S44 (base-load separation).
Unit: Verification rules and cost boundaries. Status: illustrative. Sources: S08, S09, S34, S44. Illustrative figures are teaching examples, not measured factory results.
Technology vendors and consultants often insert published case-study gains directly into five-year cash-flow projections. Empirical studies cited in this paper confirm that operational interventions work: Company X raised apparel OEE from 42.91 to 52.27 per cent using monitoring devices and digital balancing; process redesign raised output from 1,300 to 2,000 leggings per day with the same resources; the ILO Factory Improvement Toolset raised sewing-room line achievement by 9.49 per cent while cutting WIP and defects by 22 per cent; kanban and single-piece flow in an Ethiopian factory cut WIP by 48.5 per cent and throughput time by 80.3 per cent; Edget Garment raised balance efficiency from 24 to 75 per cent and daily output from 50 to 120 pieces; and TPM in the NIST MEP case raised OEE from 39 to 45 per cent while avoiding US$250,000 in equipment purchases.[S08][S09][S10][S12][S31][S37]
Each result is a sourced observation of a mechanism, not a transferable financial guarantee for a line in Douala, Garoua or Dibamba.[R10][R12][S03] Published OEE figures do not share a uniform definition across studies, and percentage gains depend on the starting baseline: a plant at 24 per cent balance efficiency has far more recoverable capacity than a line already at 58 per cent efficiency facing fabric or grid constraints.[S03][S35][S37]
To build an auditable business case, GFT requires sponsors to reconcile six physical and financial streams in a single evaluation table (Exhibit 65). Counting the wage savings of headcount reduction while simultaneously counting the margin of extra garments produced by those same operators double-counts recovered labour minutes.[S13][S1301] Similarly, counting volume-driven kWh-per-garment reductions as technical energy savings while already crediting fixed-overhead absorption on higher volume double-counts base-load dilution.[S34][S44]
Inspecting Exhibit 65 shows why disciplined factories stage capital commitments. Stream 1 (incremental good output) dominates when the factory is capacity-constrained and turning away profitable orders, or when higher throughput lets the plant consolidate two underutilised shifts into one well-utilised daytime shift.[R12][S04] When order volume is fixed by buyer demand, the benefit must instead be captured in Stream 2 (avoided overtime premiums), Stream 3 (lower scrap and rework), Stream 4 (shorter operating hours reducing base load) and Stream 5 (lower WIP working capital), net of Stream 6 intervention costs.[R16][S02][S08][S12][S31][S40][S44]
Because greenfield and turnaround lines face uncertainty in learning speed, turnover, grid stability and order mix, GFT tests every utilisation investment across three scenarios before releasing funds:[S18][S35][S39]
By binding financial projections to physical loss closure, the sponsor closes the loop between the sewing floor and the boardroom. Only when operational discipline reduces lost capacity at the constraint, lifts earned standard minutes per attended hour, eliminates rework loops, shrinks waiting inventory and trims wasted base-load kilowatts does unit cost genuinely fall.[S04][S13][S30][S44] Chapter 14 now translates this technical and economic discipline into a four-phase implementation roadmap, defining the sequence of gates, owners and scorecard measures needed to build a learning garment line from the first shift.
Check the record
Every knot is a source this chapter cites; select one to read its record, or filter the register by grade. Publication dates and inherited-source limits stay explicit. Read the paper's full evidence summary.
46 sources · 299 citation marks on this pageMost cited: S44, 26 times
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R06 · Grade C · inherited record
Inherited evidence R06
About 95 percent of cotton fibre exported raw against 5 percent processed locally; industrialisation target of 50 percent local processing.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R07 · Grade C · inherited record
Inherited evidence R07
SND30 restates the 50 percent local-processing target by 2030.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R09 · Grade C · inherited record
Inherited evidence R09
Camtext SA integrated cotton-to-textile project, US$300 million (180 billion XAF); Panafritex and Arise with SODECOTON, CNPS and Marlo; 12 November 2025.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R10 · Grade C · inherited record
Inherited evidence R10
Camtext SA: 12,000 t a year processed; about 12,000 jobs at the Dibamba hub and 3,000 at Garoua; return on investment near 11 years; optimal capacity around 2033.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R12 · Grade C · inherited record
Inherited evidence R12
CICAM capacity utilisation, July 2023 report: Garoua 33.7 percent, CICAM 1 48.9 percent, CICAM 2 10.83 percent; underutilisation cost about CFAF 2 billion in 2020.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R13 · Grade C · inherited record
Inherited evidence R13
CICAM restructuring cost estimate CFAF 30.7 to 48.2 billion; one relaunch plan cited at 70.2 billion.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R14 · Grade C · inherited record
Inherited evidence R14
Cameroon minimum wage (SMIG) XAF 41,875 a month in 2023, raised to XAF 43,969 a month from 23 February 2024, about US$76, a rise of 5 percent.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R15 · Grade C · inherited record
Inherited evidence R15
Average salary across sectors in Cameroon about US$359 a month.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R16 · Grade C · inherited record
Inherited evidence R16
Informal share of employment about 90 percent; standard 40-hour week, 48-hour maximum, overtime at 1.2 times.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R17 · Grade C · inherited record
Inherited evidence R17
Cambodia garment-sector minimum wage US$204 a month for 2024 (labour-cost benchmark).
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
R32 · Grade C · inherited record
Inherited evidence R32
CFA franc to US dollar reference rates; franc pegged to the euro at 655.957. The GFT study's method note places the franc near 590 to 610 per US dollar across the 2023 study window and near 563 to 577 more recently, and treats currency conversions as estimates.
Publication date unrecorded. Inherited source-text record. The original publication has not been independently reopened for this web edition.
c13-S01 · Grade A
ISO 22400-2:2014: Automation systems and integration: Key performance indicators for manufacturing operations management, Part 2
The KPIs are presented by means of their formula and corresponding elements, their time behaviour, their unit/dimension and other characteristics.
2014. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S02 · Grade A
The Costs and Benefits of Advanced Maintenance in Manufacturing
Total productive maintenance (TPM) is a program that aims for zero breakdowns and zero defects and focuses on eliminating six losses: equipment breakdown, setup and adjustment slowdowns, idling and short-term stoppages, reduced capacity, quality-related losses, and startup/restart losses.
2018. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S03 · Grade A
Summary Report: Meeting of the ASME Standards Subcommittee on Advanced Monitoring, Diagnostics, and Prognostics for Manufacturing Operations Hosted at NIST
Guidance should include a generally-accepted definition of Overall Equipment Effectiveness (OEE); there are currently multiple definitions, interpretations, and calculations for OEE.
2020. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S04 · Grade B
Overall Equipment Effectiveness: Systematic Literature Review and Overview of Different Approaches
Availability measures downtime losses due to breakdowns or setup/adjustments; performance measures speed losses due to minor stoppages and reduced speed; and quality measures defect losses due to process defects or reduced yield [9].
2020-09-17. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S06 · Grade B
Equipment Effectiveness: OEE Revisited
OEE does include equipment-independent conditions, such as lack of input items.
2005-02-28. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S08 · Grade A
Total Productive Maintenance Reduces Equipment Downtime and Lost Capacity
OEE also increased from 39% to 45% and lost capacity was reduced from 61% to 55%.
2022-10-04. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S09 · Grade B
Achieving Sustainable Overall Equipment Effectiveness (OEE) in Apparel Industry With Lean and Digital Integration
Company X improved its OEE from 42.91% to 52.27% using PMDs and digital line balancing.
2025-07-26. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S10 · Grade B
Optimization of the Clothing Industry Manufacturing Process to Improve Efficiency
The application of this process resulted in an improvement in the manufacturing process, and the production output increased from 1300 leggings per day to 2000 leggings per day, with the same number of machines and operators.
2024-10-21. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S12 · Grade A
Implementation of the Factory Improvement Toolset in the Asian garment sector: Final report
Sewing-room line achievements improved by 9.49 per cent and the work in progress and defect per hundred units of garments both reduced by 22 per cent.
2023. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S13 · Grade A
Creating Better Jobs for Women and Boosting Productivity in Bangladesh's Garment Factories: An assessment of the Gender Equality and Returns Program
The SMV for the garment is the sum of the SMVs for each of the steps required to produce the garment.
2025. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S15 · Grade B
Improvement of garment assembly line efficiency using line balancing technique
The cycle time is an amount of time for which a job remains in a workstation.
2020-04-03. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S16 · Grade B
Carbon Emission Evaluation Based on Multi-Objective Balance of Sewing Assembly Line in Apparel Industry
Equation (8) guarantees that the operating time of each process in any workstation should not exceed the assembly line pitch time.
2019-07-19. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S18 · Grade B
Evaluation of Manual Skill Degradation Due to Automation in Apparel Manufacturing
The average capacity percent of the MMG increased from 60.6% to 79.4%, increasing learning by almost twenty percent in six weeks.
2021-11-23. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S19 · Grade B
Remote Sensing of Sewing Work Levels Using a Power Monitoring System
The LD and LS are the first to be considered when designing garment production lines and determining staffing requirements.
2020-04-29. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S20 · Grade B
Knowledge Graph-Embedded Time-Serial-Data-Driven Bottleneck Analysis of Textile and Apparel Production Processes
Bottleneck workstations BNk are those with the highest long-term utilization or those whose work-in-process inventory in the upstream buffer is the largest of all buffers in the system.
2023-11-02. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S22 · Grade B
LAI Lean Academy Glossary
Little's law strictly applies to long term averages of stable systems, i.e. ones which are not starting, stopping or surging.
2012. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S23 · Grade B
Class 3: Capacity Lecture
The relationship between waiting time and capacity utilization is strongly non-linear!
2004. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S24 · Grade B
Pull Production
Nothing is produced by the upstream supplier process until the downstream customer process signals a need.
2020-07-02. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S26 · Grade B
Standardized Work
The benefits of standardized work include documentation of the current process for all shifts, reductions in variability, easier training of new operators, reductions in injuries and strain, and a baseline for improvement activities.
2020-07-02. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S28 · Grade B
Ask Art: How One-Piece-Flow Supports Quality
Having excess capacity is in fact normal and actually a good thing.
2016-01-13. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S30 · Grade B
What is the Theory of Constraints, and How Does it Compare to Lean Thinking?
TOC advocates beginning with the constraint that most limits Throughput.
2006-09-08. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S31 · Grade B
Process-loss Optimization through the Implementation of Kanban & Single-piece Flow: A Case Study in an Ethiopian Garment Factory
The WIP and throughput time were reduced by 48.5% and 80.3% respectively.
2022-03-03. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S32 · Grade B
International Differences in Lean Production, Productivity and Employee Attitudes
This practice led to long lead times and low quality, both because of the incentive to work as fast as possible and because the large batches meant that many bad products could be made before they were caught by inspectors.
2007. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S33 · Grade A
Cameroon Labour Code, Law No. 92/007 of 14 August 1992
Statutory hours of work in all public and private non-agricultural establishments may not exceed forty hours per week.
1992-08-14. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S34 · Grade A
Decision 00000427 fixing electricity sale tariffs for medium-voltage customers
Les tarifs de vente hors taxe d'electricite des clients MT et les seuils minima de negociation sont composes de deux termes qui s'ajoutent :
2022-12-12. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S35 · Grade B
Creating Markets in Cameroon: Unleashing private sector growth
Access to electricity: energy supply is limited and unreliable.
2022. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S36 · Grade B
Power Constraints and Firm-Level Total Factor Productivity in Developing Countries
It shows that power outages negatively and significantly affect firm-level revenue-based total factor productivity, with a 9 percent lower unconditional average productivity for exposed firms compared to nonexposed firms.
2023. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S37 · Grade A
Advancing productivity, quality improvement and decent work in Ethiopia's garment industry: results so far
As a result, Edget Garment improved its line balance efficiency from 24 per cent to 75 per cent and increased its daily line production from 50 to 120 pieces.
2022-06-01. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S39 · Grade B
Labour turnover and workers' well-being in the Ethiopian manufacturing industry
Turnover in this study is lower than previous reports from the manufacturing industry in Ethiopia; almost one-third left before the first six months and half left within the first year.
2021. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S40 · Grade B
Better Work Ethiopia Annual Report 2023: Data from 2022
Factories also reported improved productivity, quality, and workplace organization, and a reduction of absenteeism in the lines led by the newly trained supervisors.
2023. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S41 · Grade B
Excessive Overtime, Workers and Productivity: Evidence and Implications for Better Work
However, in reality it has been proved that the extension of working hours does not in general yield proportionate increases in total output, and may even lead to an absolute reduction in total output in the long run (White, 1987).
2011. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S43 · Grade A
Efficiency Solutions for Industrial Heat: Lotus Garments Suez Canal, Egypt
It's critical for a plant to optimize its energy management system through efficiency measures before investing in renewable applications.
2020. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S44 · Grade A
Practical Guide for Implementing an Energy Management System
In the case of the large base load the level of production activity has a large effect on this indicator, i.e. if production volumes increase the ratio decreases and appears to show an improvement in energy performance when none has occurred.
2015. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S1301 · Grade C
How to Calculate Garment CM Cost Using SAM (Standard Time)
Therefore, the labor cost per minute increases when line efficiency goes down.
2025-05-11. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c13-S1302 · Grade C
Cameroon implements new electricity price hike to achieve financial balance
As per this decision, electricity rates for medium-voltage clients, implemented since January 1, 2023, will progressively rise until 2026, increasing by 5% annually for consumption between 0 and 3 MW and 10% for consumption between 3 and 10 MW.
2024-02-07. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
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S13 International Finance Corporation and International Labour Organization, Better Work. 2025.
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S34 Agence de Regulation du Secteur de l'Electricite, Republic of Cameroon. 2022-12-12.
S02 National Institute of Standards and Technology. 2018.
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R13 Business in Cameroon; MMI News. Publication date unrecorded; inherited source-text check.
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S20 MDPI, Machines. 2023-11-02.
S22 Massachusetts Institute of Technology, MIT OpenCourseWare. 2012.
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S32 National Bureau of Economic Research. 2007.
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R17 just-style. Publication date unrecorded; inherited source-text check.
R32 Wise; XE. Publication date unrecorded; inherited source-text check.
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S33 Republic of Cameroon, English text mirrored by Ministry of Commerce of China. 1992-08-14.
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Keep the thread · chapter 13 of 14
Move the shuttle along the rack to preview any chapter: its sections, exhibits and reading time. Draft web edition. This research is not investment, legal or tax advice; illustrative models are not measured factory results.
The paper's rack · 14 boltsBolt length: reading time
01Part I: Measure the factory that actually exists
A garment factory creates value when the whole line converts available time and skill into accepted output. Installed machines and busy stations are evidence of resources, not proof of delivery.
02Part I: Measure the factory that actually exists
A single OEE score can start a conversation, but only its components and loss codes can tell a supervisor what to fix.
03Part I: Measure the factory that actually exists
A factory cannot interpret downtime until it has separated legal hours, planned production, external interruptions and losses inside the line.
04Part I: Measure the factory that actually exists
SMV translates garment work content into earned minutes, but it must sit beside OEE and quality rather than replace them.
05Part II: Balance work to the constraint
Balancing begins with operation precedence and required output, then tests how work can be shared without violating machine, skill or quality constraints.
06Part II: Balance work to the constraint
A workstation assignment is feasible only when the operator can perform the method safely and repeatedly at the assumed cycle and quality.
07Part II: Balance work to the constraint
A balance that ignores machine availability, skill or precedence can look efficient on screen and fail on the floor.
08Part II: Balance work to the constraint
A balance calculated for one style and crew decays as absence, learning, defects and order mix change the work.
09Part III: Design flow instead of local busyness
Balanced work needs controlled release. A line shortens delivery time when it admits work that downstream operations can use, makes queues visible and protects good output at its constraint.
10Part III: Design flow instead of local busyness
Small batches become practical when style changes are short, methods are standard and the layout lets qualified operators share work around the constraint.
11Part III: Design flow instead of local busyness
Defects consume capacity twice, first through lost good output and then through rework, queues and repeated interruption.
12Part IV: Turn measurement into sustained performance
A technically balanced line still fails when learned operators are absent, hours are unsustainable or electricity interrupts production.
13Part IV: Turn measurement into sustained performance
The financial benefit is not a higher dashboard score; it is more good garments at acceptable labour, energy, capital and working-capital cost.
14Part IV: Turn measurement into sustained performance
Release the next commitment only when a measured trial shows that good throughput, safe work and controlled flow survive ordinary operating conditions.