MGMT10002 Chap.13 Value Chains, Supply Chains and Service Quality
Value Chains, Supply Chains and Service Quality
Value is created through a connected activity system that moves from stakeholder need to a delivered and evidenced outcome. Mapping activities as verbs reveals hand-offs, waits, rework, information and decision rights.
Primary and enabling work depend on the focal flow; local cost or utilisation does not establish system performance.
Supply chains coordinate material or service capacity, information, funds and relationships across organisations. Inventory, flexibility, redundancy, visibility and collaboration provide different resilience capabilities and costs. Bottlenecks constrain throughput, while queues reveal mismatch and burden.
Service quality includes outcome, process, reliability, responsiveness and recovery. Dashboards should combine flow, outcome and guardrail evidence with a decision.
What this chapter covers
- 01
Stakeholder value and connected activity systems
- 02
Primary and enabling activities
- 03
Activity linkages, cost drivers and trade-offs
- 04
Supply-chain flows, governance and responsibility
- 05
Inventory, buffers, resilience and sustainability
- 06
Bottlenecks, queues, capacity and throughput
- 07
Service quality, customer experience and recovery
- 08
Dashboards, experiments and continuous improvement
AskSia-authored practice weighting (not an official mark scheme): resolve a delivery bottleneck without blaming drivers
- +2Define end-to-end reliable delivery as the outcome and map release, packing, routing and customer communication.
- +2Verify packing as the current constraint using queue, completion and rework evidence rather than appearance.
- +2Trace the linkage from promotional release and incomplete information to packing congestion and missed routes.
- +2Smooth release, correct rework causes, protect essential capacity and provide status plus escalation.
- +2Review reliability, recurrence, workload and equity; adapt if the constraint moves or harm is displaced.
Key terms
- Activity system
- A set of connected actions and enabling conditions whose fit determines how value is delivered.
- Value-chain linkage
- A relationship in which the way one activity is performed changes another's cost, quality or effectiveness.
- Bottleneck
- The resource or rule that currently limits system throughput relative to demand.
- Resilience
- Capabilities to anticipate, absorb, adapt to and recover from disruption while protecting important outcomes.
- Service recovery
- Accessible remedy for a service failure combined with learning that reduces recurrence.
- Guardrail measure
- Evidence protecting quality, safety, equity or workload from improvement on a narrow target.
Value Chains, Supply Chains and Service Quality FAQ
Why can local efficiency reduce system performance?
A unit can lower its own cost or raise output while creating inventory, queues, rework or burden elsewhere. Evaluate end-to-end outcome and total flow rather than isolated metrics.
Is inventory always waste?
Inventory can protect service against variability and decouple activities, but it consumes resources and can hide process failure. Name the uncertainty it buffers and compare alternative capabilities.
How do I identify a bottleneck?
Use completion, queue, blocked time, rework and availability evidence. Improve loss at the suspected constraint and see whether system throughput changes. Reassess because the constraint can move.
How should service quality be measured?
Combine outcome and process evidence with stakeholder experience, recurrence and accessible complaint or recovery data. Examine distributions, because an average may hide a severely affected group.
How can managers verify a bottleneck before investing in more capacity?
Define the end-to-end outcome and current demand, then observe arrival, completion, queue, blocked time, rework and realistic resource availability. The busiest activity may not constrain throughput, and high utilisation can simply reflect poor release or a downstream failure. Reduce avoidable loss at the suspected constraint, align upstream release and check whether completed output and total flow time improve.
If the system outcome does not move, revisit the diagnosis. Protect quality and employee safety while testing; overtime can temporarily hide inadequate capacity and create future rework. Track abandonment and incomplete cases so a shorter visible queue is not mistaken for improvement. After intervention, identify the new limiting condition because constraints move.
Only then compare additional capacity with redesign, demand shaping, skill flexibility or a buffer. State the stakeholder consequence, implementation burden and evidence gate. This prevents capital expenditure from becoming the default response to a queue whose cause lies elsewhere.
What makes a service-recovery system produce organisational learning?
Provide an accessible reporting route, timely remedy and authority proportionate to the failure. Classify patterns by promise, process, communication and outcome, then connect recurrence to a process owner. Complaint volume alone is unreliable because barriers can suppress reporting. Segment experience, include frontline evidence and preserve rare serious harms outside normal averages.
Communicate the correction to affected people where appropriate and verify whether recurrence falls. If employees lack discretion or capacity to meet the formal standard, redesign operating conditions rather than coaching one person repeatedly. Recovery is complete only when the individual case and the upstream cause both receive action.
Exam move
Draw an end-to-end flow for a familiar service. Use verbs, mark one hand-off, wait, rework loop, decision right and enabling condition. Explain one linkage causally. Identify the suspected constraint and choose evidence that could disconfirm it. Add the supply dependency and the uncertainty absorbed by any buffer. For service quality, separate promised outcome, experienced process and recovery.
Design a small dashboard with one flow signal, one outcome and one guardrail, each connected to a decision. Practise a bounded improvement hypothesis: change, mechanism, observation window and continue–adapt–stop rule. Avoid using utilisation or customer satisfaction alone.
Apply the method to a second setting so the diagram does not become memorised content, and follow current assessment requirements for any prescribed value-chain framework.
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