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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?
Ho Goh
Trinity
Meet Trinityhellotrinity.netho@hellotrinity.net
Ho's signature
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
Break
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
Break
3
Part 3

Real world

45 min
  • Lecture 4: supplier and procurement analysis
  • A 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?

12months before
6months before
3months before
1month 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?

Centralised

Purchasing buys on behalf of the whole organisation.

Decentralised

Business users control and manage their own buying.

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 runPurchase proposal
2

Ordering

Purchase requestApprovalPurchase orderSupplier confirms
3

Goods receipt

Delivery notificationGoods receipt
4

Settlement

Supplier invoiceVerify, approve, post
5

Pay supplier

Payment

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?
System
→Purchase proposalfrom the planning run
Business
→Purchase requestasks purchasing to buy
Purchasing
→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 supplyHighest priority
2
Quota arrangementSplit the quantity across suppliers
Supplier A 70%
B 30%
3
ContractsPrices, 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 sizeSAP MRP type VB, the coffee pods
6003001000 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.

= 10,000
Planning procedures
Demand drivenConsumption basedManual

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

MasterTransactional

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).

15:00Break

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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Case study
Part 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 teamPresents the collection and takes the orders
Own stores and websiteNo market for them: they plan their share inside the brand
The marketThe collection is shown. Wholesale buyers place their orders.
Department storesWholesale buyers, order at the market
Online retailersWholesale 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

  • MDMA new colour with the wrong barcode
  • PTPOrder sent with the wrong size split
  • WMCartons labelled with the wrong size
  • OTCCustomer billed at the wrong price
  • RTRCurrency rate not updated
  • BITwo reports, two sales numbers
1
2
3
4
5
6
Round 3
Part 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

One event
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 2026For large companies, under the EU Ecodesign Regulation. Medium-sized companies follow in 2030. France banned it back in 2022.
Still allowed: Switzerland, Great BritainNo ban there today. Northern Ireland follows the EU rule.
Sources: European Commission (July 2026), SRF (July 2026), British Retail Consortium (2026)
15:00Break

Well played

After the break: Part 3.
Lecture 4, a services organisation, and one big question.

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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
1StrategizeWhere do we want to go?I want to be healthier
2PlanHow do we get there?Sleep, eat, exercise
3Monitor, analyseHow are we doing?Track how I sleep and feel
4Act, adjustWhat 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
92%
Q3 2026Target 95%Benchmark 90%
Strategy reliable supply
Target 95%
Encoding traffic lights
Range above, on, below
Time frame Q3 2026
Benchmark 90%
Lagging: what happenedLeading: what may come next
Balanced scorecard, Kaplan and Norton, 1992
FinancialHow do we look to shareholders?
CustomerHow do customers see us?
Internal processWhat must we excel at?
Learning and growthCan 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 dataBusiness performance: events added up into indicators and reports
Transactional dataBusiness events: orders, receipts, invoices
Master dataBusiness objects that stay: product, supplier, customer
OLTP runs the dayERP and CRM: create, read, update, delete
OLAP analyses itA 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.

SliceDicePivotDrill
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%

Total spend per category

Fabric
4.2m
Trims
2.3m
Packaging
1.6m
Logistics
1.3m
Services
0.6m

Purchase order history

PO 4501Received
PO 4502Invoice blocked
PO 4503Open
PO 4504Paid
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.

FinancialCustomerInternal processLearning and growthThe four perspectives
Key concepts, Lecture 4
Lecture 4 key concepts, 3 of 3

Balanced on paper.
Balanced in reality?

BuyersMeasured on price. They want the cheapest factory.
LogisticsMeasured on time. They want the factory that delivers on time.
QualityMeasured 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. 1Interdependencies everywhere.
  2. 2Master data travels furthest.
  3. 3The system joins the data. People join the decisions.
Thank you, and thank you to Prof. Park

Thank you.

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