Implementation Plan

01 · Purpose and distinction from rollout

Purpose and distinction from rollout

An implementation plan describes the work needed to make a chosen change operational: tasks, owners, dependencies, resources, timing, acceptance criteria, and handover. Its purpose is to turn an approved concept into a deliverable operating process. Rollout is the strategy and execution for expanding that process across additional lanes, shifts, sites, or users. The implementation plan creates readiness; the rollout plan controls the breadth and sequence of adoption.

Use an implementation plan once a design is sufficiently defined to deliver, while retaining open assumptions that need resolution. Prerequisites include an approved scope, a future-state process design, must criteria, relevant pilot learning, and people authorized to own the work. A task list alone is insufficient. “Train staff” needs an owner, operating content, completion evidence, and a dependency on the final approved procedure. Otherwise activity can be reported complete while readiness remains uncertain.

02 · Define deliverables and accountable ownership

Define deliverables and accountable ownership

Fictional Northbank Dispatch selects early assignment with scan confirmation after a bounded pilot. Deliverables include configured assignment logic, working scanners, approved lane markings, standard work, an offline manifest procedure, trained staff, data reporting, and a reaction plan. The dispatch owner is accountable for operating readiness. The systems lead owns configuration and test evidence. The safety representative accepts layout changes. The shift leads own capability checks on their shifts.

The plan states what is outside this implementation: changing carrier contracts, redesigning order-release timing, and introducing the process to another warehouse. Exclusions keep the plan focused while allowing related work to be tracked separately. The sponsor approves spending and resolves cross-functional constraints. Every deliverable has one accountable owner even where several people contribute. Shared accountability without a final decision owner often causes handoffs to wait until the launch deadline.

03 · Sequence dependencies realistically

Sequence dependencies realistically

Northbank’s schedule includes two days for configuration, two days for system testing, three days for standard work and training, and one day for readiness review. Layout preparation takes two days and can run in parallel with configuration. Training depends on successful testing and the approved operating instructions. Readiness review depends on training, layout acceptance, data availability, and recovery rehearsal.

If configuration occupies days one and two, testing days three and four, training days five through seven, and readiness review day eight, the sequential path is eight working days. The separate two-day layout task does not increase that path if its owner is available and it finishes before readiness review. Work effort and elapsed duration are different: several people can spend more than eight total person-days on an eight-day plan. The team checks resource contention so the same analyst is not scheduled for simultaneous critical tasks.

04 · Worked acceptance and change decisions

Worked acceptance and change decisions

The scanner test must show correct normal assignment, reassignment detection, unreadable-label handling, and outage recovery in the approved configuration. Training acceptance requires operators to demonstrate the routine and exception sequence; a signed attendance sheet alone does not pass the gate. Layout acceptance requires the agreed clearances and a physical walk-through. Data acceptance requires complete carton denominators and synchronized cutoff timestamps.

On day four, testing reveals that the night-shift display hides reassignment alerts. The systems owner adds a display correction, retests the relevant cases, and moves training by one day. The sponsor accepts a revised ninth-day readiness review rather than launching with a known gap. The plan records the scope and timing impact. This is controlled adaptation, not failure to follow a schedule. Launch dates serve the operating outcome; they do not replace acceptance evidence.

05 · Prepare handover, control, and contingency

Prepare handover, control, and contingency

Before go-live, Northbank assigns normal process ownership, report review, configuration access, and reaction authority. The dispatch owner receives the process map, standard work, training evidence, metric definitions, and recovery plan. The systems lead remains available during the first collection waves. The plan specifies what happens if readiness fails: keep the current approved process and resolve the blocking condition before rescheduling.

The first-week support arrangement names a contact on every shift and a daily review of late loading, missing assignments, and queue time. It also distinguishes incident correction from uncontrolled design change. Any change to label identity or confirmation rules requires review of traceability and measurement definitions. The handover includes unresolved issues with owners and review dates. Closing the project does not mean every performance assumption is proven, so continuing verification is part of acceptance rather than an optional courtesy.

06 · Weak versus strong planning and advanced use

Weak versus strong planning and advanced use

Weak implementation plans list verbs without deliverables, assign every task to “the team,” schedule training before the design stabilizes, or declare success when equipment is installed. Strong plans identify dependency logic, resource availability, acceptance evidence, operating ownership, and a workable fallback. They track readiness as well as schedule and cost. A small project may use a simple plan, but simplicity should not erase critical relationships.

Advanced teams manage uncertainty with decision gates and alternative paths. A software integration can have a tested manual fallback path rather than a single brittle launch sequence. They use short readiness reviews focused on evidence and unresolved risks, avoiding a ceremonial meeting that merely repeats percentage-complete claims. Northbank’s implementation plan is later reused as a readiness pattern for additional lanes, while the rollout plan determines which lane comes next and what new local evidence is required.

07 · Operating conditions and evidence

Operating conditions and evidence

Acceptance should be attached to deliverables while the plan is written, not invented during handover. Northbank’s data-reporting task is accepted when the owner can reproduce the denominator, cutoff definition, and exception counts from the operational record. Its recovery task is accepted when the approved fallback and reconciliation work in a rehearsal. These are concrete evidence requirements, not additional reporting for its own sake.

The plan also identifies decisions that can block the schedule. Carrier lane naming, permission to update assignments, and ownership of support charges each need a responsible decision maker and a due date. Leaving them implicit can make a technically ready solution wait at the final gate. Resource planning includes backfill for training so normal collections remain staffed. A realistic implementation plan protects current operation during the transition while making the new process ready for adoption. It is reviewed when dependencies change, rather than judged only by whether an old date is maintained.

08 · Decision record and next step

Decision record and next step

Northbank tracks unresolved assumptions separately from incomplete tasks. A configuration task can be finished while its ability to handle an unusual carrier reassignment remains unverified. The readiness review must see that distinction. Percentage-complete reporting is useful for delivery progress, but acceptance evidence determines whether the process is ready to operate.

The sponsor also defines who can approve scope changes. A revised display can be handled within the project if it preserves the operating mechanism and budget; a new carrier-routing algorithm requires a broader review. This keeps routine adaptation moving without allowing the selected concept to drift into an unassessed system. The implementation plan therefore serves both execution and decision control. At handover, the owner receives a usable process with known boundaries, support arrangements, and open issues, rather than equipment accompanied by an optimistic project completion announcement.

Connections

Related methods and phase use

Placed under Improve because of the outcome it supports. Use the method in other phases when its purpose and assumptions fit the work; the phase list is a guide to selection, not a compulsory sequence.

Sources

Professional foundations and further reading

• PMI: Implementation Planning—The Critical Step

The explanation and fictional teaching examples are written for LeanTrainingLab. Linked primary sources provide professional foundations; example values and local conventions are stated in the guide. The accepted toolset draws on Six Sigma+Lean Toolset, second edition (Lunau, editor; Springer, 2013). No book text or examples are reproduced here.