This workshop guide expands the 8 Wastes in Service and Transactional Work pocket guide into a practical resource for seeing waste in knowledge work, measuring value-added time, and redesigning service processes around customer value.
Overview
Manufacturing waste is visible: inventory, walking, rework, waiting, motion, and defects can be seen on the floor. Service waste is harder. It hides in inboxes, approval chains, meetings, queues, re-entered data, unread reports, and the normal routines of office work.
The workshop teaches participants to see service work through the TIMWOODS lens: Transportation, Inventory, Motion, Waiting, Overproduction, Defects, Over-processing, and Skills. It then connects that lens to value-added analysis, waste hunts, and service value stream mapping.
In service work, waste often looks like a normal Tuesday until people learn to see it.
Who This Workshop Is For
Lean and continuous improvement practitioners working in office, healthcare, banking, government, insurance, HR, IT, finance, and administrative processes.
Service managers responsible for cycle time, backlog, customer experience, or knowledge-work productivity.
Teams trying to reduce email churn, approval delay, rework, meeting overload, or data-entry burden.
Facilitators adapting Lean concepts from manufacturing to transactional workflows.
Learning Objectives
Explain how each of the 8 wastes appears in service and transactional work.
Apply the value-added test to office and knowledge-work steps.
Run a structured service waste hunt.
Calculate value-added ratio for a service process.
Adapt value stream mapping for information, decisions, and transactions.
Prioritize waste countermeasures by customer impact, time reduction, and feasibility.
The 8 Wastes in Service Work
The source guide uses TIMWOODS to make intangible waste concrete. Each category has a service expression that can be observed once teams know what to look for.
Transportation
Unnecessary routing of information, approvals, files, requests, or customers between people and departments.
Inventory
Backlogged cases, unread emails, reports waiting for review, unused information, or queued decisions.
Motion
Searching, switching systems, re-entering data, navigating screens, or attending unnecessary meetings.
Waiting
Idle time waiting for approvals, responses, data, access, meetings, system outputs, or customer callbacks.
Overproduction
Reports, slides, copies, emails, analyses, or pre-processed work produced before they are needed.
Defects
Incorrect, incomplete, misunderstood, or missing information requiring follow-up, correction, or rework.
Over-Processing
Extra approvals, formatting, analysis, documentation, or compliance effort beyond actual need.
Skills
Underusing people's knowledge by assigning professionals to low-value tasks or excluding frontline insight.
Value-Added Test
A service activity is value-added only if the customer would care about it, it transforms the service or information toward the desired outcome, and it is done correctly the first time. Everything else is either necessary non-value-added or pure waste.
This test is often uncomfortable in service environments because many accepted routines fail it. That discomfort is useful. It creates a clearer conversation about what the process exists to deliver.
- Choose one process from request to resolution.
- List every step, handoff, wait, meeting, review, data entry, and decision.
- Classify each step as value-added, necessary non-value-added, or non-value-added.
- Assign non-value-added steps to one or more TIMWOODS categories.
- Estimate time, cost, and customer impact for the largest wastes.
- Select countermeasures for the top three to five opportunities.
Service Value Stream Mapping
In service VSM, the product is often information, a decision, a claim, a case, a request, a patient discharge, an invoice, or an approval. The map should show process time, wait time, handoffs, rework loops, queues, systems used, and information flow.
The value-added ratio is usually revealing. A process that takes two weeks may contain less than an hour of true transformation. That gap is the improvement opportunity.
Process Time
The time someone is actively transforming the work toward the customer need.
Wait Time
Time spent sitting in queues, inboxes, calendars, review piles, or system delays.
Handoffs
Transfers between people, departments, systems, or authority levels.
Rework Loops
Cycles caused by missing information, unclear requirements, errors, or rejected outputs.
Workshop Flow
The source guide is intended for a 4-hour session. This flow turns waste recognition into process-level action.
0:00-0:20 Opening
Contrast visible manufacturing waste with hidden service waste.
0:20-1:05 TIMWOODS Service Lens
Teach each waste category using service examples.
1:05-1:40 Value-Added Test
Apply VA, NNVA, and NVA classifications to a sample service process.
1:40-2:00 Waste Hunt Setup
Choose a real process and define boundaries.
2:00-2:15 Break
Review selected processes for practical scope.
2:15-2:55 Service Waste Hunt
Trace a transaction and classify waste by type.
2:55-3:30 Service VSM
Calculate process time, wait time, and value-added ratio.
3:30-3:50 Countermeasure Design
Prioritize the top waste reductions and define owners.
3:50-4:00 Commitment
Each participant selects one service waste to remove in 30 days.
Discussion Questions
Which service waste type consumes the most time in your work?
What is the estimated value-added ratio of a process you own?
Where is skills waste most visible in your organization?
What waiting waste could be reduced through clearer communication norms or authority?
Which future-state VSM change would most improve customer experience?
Related Learning Resources
Closing Message
Service waste is accumulated by habit. Once the team can see it, name it, and measure it, those habits can be redesigned around value.
Waste does not announce itself. Learn to see it, and the normal Tuesday becomes an improvement map.