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AIXYS·WP·003AIXYS · WHITEPAPER

PAPER · 2025-12-17 · 18 MIN READ

The Stack Consolidation Playbook

A sequenced approach to retiring operational tools without disrupting the operators who depend on them.

AUTHORS
Halvarsson · Voss
CATEGORY
Strategy
CITATION
AIXYS·WP·003
FORMAT
PDF · 18 min read
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ABSTRACT

What this paper argues.

Stack consolidation projects fail not because the target architecture is wrong, but because the sequencing disrupts operators mid-quarter. This paper lays out the Aixys playbook — six phases, six months, with explicit rollback gates.

  • Strategy
  • Operations
  • Whitepaper

CHAPTER · 01

Why consolidation fails

Most failures are operational, not technical — operators were not given a working path back.

Our review of 34 mid-market consolidation attempts (14 with Aixys, 20 without) shows that 78% of failed projects shared the same fatal pattern: the cutover was too abrupt, the rollback path was undefined, and a single high-priority quarter consumed the margin.

Consolidation is an operational problem disguised as a technical one. The architecture is usually fine. The sequencing is what goes wrong.

CHAPTER · 02

The six phases

Discover · Shadow · Parallel · Pilot · Cutover · Retire. Each has explicit entry and exit criteria.

Discover: map the current stack, label every operator ritual, and identify the tools that will be retired. Shadow: run Aixys alongside the current stack in read-only mode against the same data. Parallel: operators write to both surfaces for one cycle. Pilot: one team cuts over fully. Cutover: organisation cuts over. Retire: contracts wind down.

The rollback gate is at Parallel. If operators cannot commit to cutover after one full cycle, the project pauses — it does not push forward.

CHAPTER · 03

The rituals to preserve

Operators protect rituals more than tools; consolidation must carry rituals forward.

The fastest way to kill a consolidation is to remove a ritual operators relied on without offering a replacement. We interview every operator about the three rituals they would miss most, and design the cutover around preserving those.

This often means the new system exposes functionality in a shape that matches the old habit, even if the underlying memory is different.

CITATIONS · END MATTER

What we stand on.

  1. 01Aixys Consolidation Retrospective, 14 projects, 2024-2026
  2. 02Kotter, J. — "Leading Change", HBR Press, 1996
  3. 03Aixys Customer Engineering Handbook, 2026

NEXT STEP

Bring this paper to your architecture review.

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