HEG Genève, Digital Management, 1 October 2026
Hello. I'm Ho.
Guest lecturer today, covering for Prof. Jung Park.
Korean heritage, British upbringing, Swiss working life
25 years of ERP and change across consulting, oil, fashion, luxury and advertising
Today I run Trinity : helping organisations change through their people
While you wait
The polo you buy next September. When do you think someone started working on it?
Meet Trinity hellotrinity.net ho@hellotrinity.net
Today's format
Three parts, 45 minutes each
1 Part 1
Theory 45 min
A question to start Who I am ERP in one picture Lecture 3 : procurement planning and processing
2 Part 2
Case study 45 min
A polo, from design into the customer's hand Six groups, three rounds Real life in a fashion maison
3 Part 3
Real world 45 min
Lecture 4 : supplier and procurement analysisA services organisation All in one, or best in class?
1
Part 1, theory
Before we start One question, who I am, and how today works.
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A question to start
The polo you buy next September. When did someone start working on it?
12 months before
6 months before
3 months before
1 month before
September
Hands up. The answer comes in Part 2.
Who I am
How I got to this room
Technical ↔ ↔ Business
My seat: the translator between technology and the business. End users need to understand , appreciate and accept a new system. My focus is the people.
How today works
Practitioner> Professor
Stories from real projects Fashion, oil, luxury, advertising.
Ask me anything, anytime Interrupt me: this is why I am here. If you want a chat at the end of the lesson, please stay behind.
Prof. Park's theory, wrapped with the real world Lecture 3 and Lecture 4.
Case study Working in 6 groups.
An ERP is an agreement between people about how the business works, written down in software.
The lab will be done with Prof. Park upon his return.
1
Part 1, theory
ERP in one picture Where today sits in your course, and the six groups that make the end to end.
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Prof. Park's circle
Your course, one integrated system
Done: organisational design, sourcing
Today: procurement planning and processing, supplier analysis
Still to come
Today: managing procurement, strategic and operational, and then analysing it.
The end to end
Six groups that make the End to End
MDM the foundation every step reads
PTP → WM → OTC the goods flow
RTR counts the money
BI tells the story
In Part 2, you are these six groups , running one polo from design into the customer's hand.
1
Part 1, Lecture 3
Procurement planning and processing Prof. Park's Lecture 3
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Summary of Prof. Park's Lecture 3
Lecture 3 summary, 1 of 4
Procurement: strategic and operational
Strategic procurement, sourcing
Plan long term Analyse spend, find sources of supply, negotiate and monitor contracts.
Lecture 2
Operational procurement, purchasing
Execute every day Convert demand into purchase orders. On time, to the right place, in the right quantity.
Today
Demand
Customer orders
Sales forecasts
Supply
Purchase orders
Purchase contracts
Purchasing keeps supply and demand in balance.
Summary of Prof. Park's Lecture 3
Lecture 3 summary, 2 of 4
Who controls the buying?
Suppliers
Head office
Plant
Plant
Plant
Centralised Purchasing buys on behalf of the whole organisation.
Suppliers
Head office
Plant
Plant
Plant
Decentralised Business users control and manage their own buying.
Suppliers
sourcing buying
Head office
Plant
Plant
Plant
Mixed Central purchasing manages some of the spend. The business keeps some buying.
Which one? Head office does the sourcing, local plants do the purchasing. The answer depends on company size and how specialised the units are.
Mixed
Source: Prof. Park, Lecture 3 (O'Brien, 2014)
Summary of Prof. Park's Lecture 3
Lecture 3 summary, 3 of 4
Procure to pay, step by step
1
Supply planning Planning run Purchase proposal
2
Ordering Purchase request Approval Purchase order Supplier confirms
3
Goods receipt Delivery notification Goods receipt
4
Settlement Supplier invoice Verify, approve, post
Each step creates a document. Together they form the document flow you will walk in Exercise 3.
Summary of Prof. Park's Lecture 3
Lecture 3 summary, 4 of 4
From proposal to order, and to which supplier
Who creates it?
→ Purchase proposalfrom the planning run
→ Purchase requestasks purchasing to buy
→ Purchase ordersent to the supplier
Each document is created with reference to the one before.
Which supplier gets the order? The sourcing engine checks, in order:
1 Fixed source of supply Highest priority
2 Quota arrangement Split the quantity across suppliers
3 Contracts Prices, availability
Built on master data from strategic sourcing: supplier, product, contract.
Key concepts, Lecture 3
Lecture 3 key concepts, 1 of 3
Three-way match
Purchase order
What we ordered
Quantity5,000
Price per poloCHF 12.00
Goods receipt
What we received
Quantity4,600
Price per polon/a
Issue: 400 fewer received
Supplier invoice
What we are billed
Quantity5,000
Price per poloCHF 12.00
✓ Price: order and invoice agree
✗ Quantity: the receipt differs
Outcome
Pay , and receive a credit note for the missing quantity.
Credit note (credit memo) 400 polos x CHF 12.00 = CHF 4,800
Order, receipt and invoice: three documents, one control that protects the money.
Key concepts, Lecture 3
Lecture 3 key concepts, 2 of 3
How much, and when?
Reorder point with a fixed lot size SAP MRP type VB, the coffee pods
600 300 100 0
Time
Reorder point: 100
Stock dips to 99: order one lot of 500
Stock goes to 599
Fixed lot size, SAP MRP type PD
The fuel tanker No reorder point. A tanker holds 5,000. A future deficit of 7,500 orders two lots.
5,000 5,000 = 10,000
Planning procedures
Demand driven Consumption based Manual
Demand driven suits volatile, long lead time or expensive items. Consumption based is simple and steady.
Bill of materials
The recipe Single BOM: a laptop and its asset tag. Multiple BOM: several steps, like the handlebar before the grip.
Key concepts, Lecture 3
Lecture 3 key concepts, 3 of 3
Data, integration and scale
Master or transactional data?
The contract
Master Transactional
It sits in between. In a major oil company, the text blocks were master data and the finished contract was transactional.
Integration
One receipt, three effects
Goods receipt
Stock goes up
Orders can ship
Value posted in finance
Captured once , as part of a process (within WM).
Nestlé GLOBE, from Lecture 2
From local to shared
600,000 167,000 suppliers
150 4 data centres
91 markets on shared processes
about €3 billion saved
A $2.4 billion project: shared processes, standard master data, one SAP instance.
Stretch your legs After the break: Part 2, the case study.Think about which of the six groups you want to be.
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2
Case studyPart 2, a luxury fashion brand
Polo: from design into the customer's hand How the market works, then six groups run the chain.
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Case study
How the market works
Super seasons, and minor seasons in between
Spring / Summer (SS) The first half of the year
Autumn / Winter (AW) Also called Fall / Winter
Minor seasons are smaller drops that keep the shop floor fresh. Names, timing and count vary by brand.
Today we plan AW27 : the Classic Polo for Autumn/Winter 2027.
Case study
How the market works
The market: where the brand meets its buyers
The brand's sales team Presents the collection and takes the orders
Own stores and website No market for them: they plan their share inside the brand
The market The collection is shown. Wholesale buyers place their orders.
Department stores Wholesale buyers, order at the market
Online retailers Wholesale buyers, order at the market
The market is when the polo is ordered. Production planning is adjusted to what the market asks for.
Case study
How the market works, on paper
The calendar behind one polo
Case study
Your role
Six groups. End to End Process.
Round 1
Round 1, when it all works
Round 2
Round 2, inside out
What goes wrong in your area?
Write
Two sticky notes One thing that goes wrong in your area. Who else feels it?
Think
Outside in Which group can hurt you most? Name one, and how.
Share
Out loud Each group reads one note to the room.
Stuck? Examples
MDM A new colour with the wrong barcode
PTP Order sent with the wrong size split
WM Cartons labelled with the wrong size
OTC Customer billed at the wrong price
RTR Currency rate not updated
BI Two reports, two sales numbers
Round 3Part 2, case study
When things go wrong I deal a card. IMPACT: is your group hit, directly or indirectly? When, and how? Stand up if yes.
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Debrief
Debrief
Five lessons from the ripples
1
Interdependencies everywhere Think process, not function.
2
Master data travels furthest Cheapest to fix at the source.
3
The system joins the data. People join the decisions.
4
Time is always short An ERP helps you manage the process and the situation.
5
Controls are there for a reason Three-way match, duplicate check, dual approval.
Behind the scenes
Real life in the world of a fashion maison
Unending and overlapping
Always the next season Design one, make another, sell a third. All at the same time.
Excess stock
A problem Outlets, off price, carry over, staff sales. France bans destroying unsold clothes.
Where in Western Europe can you still burn them?
Trends change
Colours move A colour can take off, or cool down, in the middle of a season.
Cultural nuances
Size is personal There are nuances by market, even in size labels. In some cultures, people like the feeling of wearing a smaller size.
The plan is the starting point. The system and data keep it on track.
People's behaviour and decisions can override the efficiency an ERP was built to deliver. People make or break the outcome.
Real life, excess stock
Where in Western Europe can you still burn unsold clothes?
France
Germany
Switzerland
Italy
Spain
Netherlands
Great Britain
Belgium
Portugal
Austria
Ireland
Luxembourg
Northern Ireland
Take a guess. Then I reveal.
EU: banned since 19 July 2026 For large companies, under the EU Ecodesign Regulation. Medium-sized companies follow in 2030. France banned it back in 2022.
Still allowed: Switzerland, Great Britain No ban there today. Northern Ireland follows the EU rule.
Sources: European Commission (July 2026), SRF (July 2026), British Retail Consortium (2026)
Well played After the break: Part 3.Lecture 4, a services organisation, and one big question.
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3
Part 3, Lecture 4
Supplier and procurement analysis Prof. Park's Lecture 4
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Summary of Prof. Park's Lecture 4
Lecture 4 summary, 1 of 3
Brain, muscle, and a closed loop
Strategic procurement, the brain
"Who should we partner with to get the best fabric, at the best price, for the next two years?"
Operational procurement, the muscle
"How do we order 5,000 blue buttons for the Milan factory, to arrive by next Tuesday?"
Like your own health: set a goal, plan, track, adjust.
Business performance management
1 Strategize Where do we want to go? I want to be healthier
2 Plan How do we get there? Sleep, eat, exercise
3 Monitor, analyse How are we doing? Track how I sleep and feel
4 Act, adjust What do we change? Change the plan
Summary of Prof. Park's Lecture 4
Lecture 4 summary, 2 of 3
"You can't manage what you don't measure"
On-time delivery, polo suppliers
Q3 2026 Target 95% Benchmark 90%
Strategy reliable supply
Target 95%
Encoding traffic lights
Range above, on, below
Time frame Q3 2026
Benchmark 90%
Lagging: what happened Leading: what may come next
Balanced scorecard, Kaplan and Norton, 1992
Financial How do we look to shareholders?
Customer How do customers see us?
Internal process What must we excel at?
Learning and growth Can we keep improving?
Vision and strategy
Balanced: look beyond the financial numbers.
Summary of Prof. Park's Lecture 4
Lecture 4 summary, 3 of 3
Three kinds of data, and thinking in cubes
Analytical data Business performance: events added up into indicators and reports
Transactional data Business events: orders, receipts, invoices
Master data Business objects that stay: product, supplier, customer
OLTP runs the day ERP and CRM: create, read, update, delete
OLAP analyses it A data warehouse you read from, for planning and monitoring
Embedded analytics: one single source of data.
Sales measure of 850 for Skis in February : the fact sits where the dimensions meet.
Slice Dice Pivot Drill
Key concepts, Lecture 4
Lecture 4 key concepts, 1 of 3
Supplier and procurement analysis in practice
Contract spend ratio 78%
spend through agreed contracts
Maverick spend 22%
bought off contract
On-time delivery 92%
target 95%
Purchase order history PO 4501 Received PO 4502 Invoice blocked PO 4503 Open PO 4504 Paid
KPI with thresholds
Traffic lights Above, on or below target. Someone decides where the lines sit.
Drill down
From total to document Click a category, land on the purchase order behind it.
Question
Which metric would you watch? At a luxury fashion brand, it depends on who you are in the business, and outside it.
Illustrative numbers
Key concepts, Lecture 4
Lecture 4 key concepts, 2 of 3
Real life is less straightforward
After a security breach
Upgrade CCTV, alarms and badges How much can we spend without hurting business critical activity?
Three months of a weaker currency
Is year to date spend still on forecast? Do we buy everything we planned, economise, or drop something?
The report gives you the number. The decision still needs people.
Financial Customer Internal process Learning and growthThe four perspectives
Key concepts, Lecture 4
Lecture 4 key concepts, 3 of 3
Balanced on paper. Balanced in reality?
Focus
Buyers Measured on price. They want the cheapest factory.
Logistics Measured on time. They want the factory that delivers on time.
Quality Measured on returns. They want the fewest defects.
Competing priorities. Like planning our own lives, there is a natural place of focus. Who decides it?
Coming up
Good to know
Assignment 1
16Oct
Exercises 1 to 4 Organisational design, sourcing, supply planning and processing, supplier and procurement analysis.
To be reconfirmed by Prof. Park next week, as there is no lab this week.
Group presentations
2Dec
Groups of 5 Start thinking about your group. The details come in session 11.
A tip from Prof. Park
Explain, don't name Explanations earn more points than names and screenshots.
3
Part 3, a services organisation
Same pattern, different stock A consulting or services organisation, where what they sell is people.
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A services organisation
Where demand meets supply
DemandClient pipeline and scope. The market keeps changing.
SupplyPeople: skills and capacity. New methods and tools.
Demand meets supply
Complex to manage: market changes, new methods and tools, trends.
PlanStaffing, schedules, the bench
DeliveryProjects, timesheets, invoicing, FICO
Same principle as a goods company. In fashion the stock is polos. In services it is people's hours: an unsold hour is gone.
A services organisation, one deal end to end
Who touches one deal? Reveal it, one strip at a time.
3
Part 3, real world
All in one, or best in class? One suite for everything, or a specialist for each job?
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Your call
Is it more efficient and effective to have an all in one ERP (e.g. SAP), or to mix and integrate best in class software?
All in one e.g. SAP
Pro Integration. Data flows once, end to end, with integrity.
Cons Constrained to what the supplier offers High implementation cost Intrusive to the business and its ways of working
VS
Best in class a specialist per job
Pro Best in class. The strongest tool for each job.
Cons Integration is tricky: every handover is an interface Master data management across systems
Vote first, then click to reveal
The answer in real life
Even a "full" SAP has satellites
Systems, apps and software, Excel included , that are connected, impacted or considered.
At a global fashion brand
100+
satellites around SAP.
So the real question is how well they connect.
Three things to keep
1 Interdependencies everywhere.
2 Master data travels furthest.
3 The system joins the data. People join the decisions.
Thank you, and thank you to Prof. Park
Thank you.
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