Up to 80% Fewer Review Comments for a European Specialty-Metals Manufacturer

Up to 80% Fewer Customer Review Comments in a WebMethods-to-MuleSoft Migration

A governance-escalated WebMethods-to-MuleSoft migration for a global manufacturing enterprise was brought back on track through focused ownership, platform upskilling and stronger engineering controls.

The engagement began under significant delivery pressure. The migration was already six weeks behind schedule, quality concerns had reached governance forums, and confidence in the programme needed to be rebuilt.

Tarento took ownership of the recovery, working through unfamiliar technology, inherited complexity, and shifting test schedules to move the project from red to green. The turnaround came from a practical combination of platform capability, quality discipline, and sustained customer support.

At a glance

• Client: A European specialty-metals manufacturer
• Challenge: Recover a stalled WebMethods-to-MuleSoft migration
• Starting position: Six weeks behind schedule, quality escalated, delivery confidence under pressure
• Tarento’s role: Take ownership of the engagement and recover it end to end
• Hero outcome: Customer review comments reduced by 70-80%, with the project moving from red to green

The challenge: recovering a complex integration migration

The programme involved migrating from WebMethods to MuleSoft, with new platform requirements, a complex testing framework and several unknowns that became clear only once delivery was underway.

The client had attempted similar migration work over a longer period with other partners, but the expected outcome had not been achieved. By the time Tarento stepped in, the project had turned red. Delivery was six weeks behind plan, and quality concerns had been escalated through governance channels.

The priority was clear: rebuild delivery Customers confidence while continuing to move the migration forward.

Problem 1: Building MuleSoft capability quickly

The first challenge was platform capability. The team had strong integration experience, but MuleSoft was new territory for several consultants.

Rather than pause delivery or wait for a fully new team, Tarento anchored the engagement with a MuleSoft architect and rapidly upskilled the existing WebMethods consultants. This allowed the team to become productive on MuleSoft while retaining the domain and integration knowledge already built during the engagement.

The result was a faster capability transition and a team that could continue delivery without losing context.

Problem 2: Improving quality at the source

The second challenge was quality. Customer review comments were high, and the project needed a stronger mechanism to prevent recurring issues from reaching the client review stage.

Tarento introduced a more disciplined engineering process. Multi-layer peer reviews were put in place so that deliverables were checked before submission. A knowledge base was created to capture review observations, recurring mistakes, and agreed best practices.

The operating principle was simple: an issue identified once should not appear again.

Over time, this discipline began to show in the numbers. Customer review comments fell by 70-80%, recurring quality escalations stopped, and the client began to see more predictable delivery.

This is what disciplined enterprise integration looks like in practice: not more processes for its own sake, but better controls that improve quality before issues reach the customer.

Problem 3: Managing unpredictable testing cycles

The third challenge was testing predictability. User acceptance testing schedules shifted frequently and did not always follow the original plan.

Tarento focused on what could be controlled: steady development progress, responsive support and close coordination with the customer team. During the most critical stages, hypercare support was extended beyond the contractual commitment to help the client move through issues with confidence.

That flexibility helped stabilise delivery during a period when the schedule remained difficult to control.

The result: from red to green

By the end of the engagement, the project had moved from red to green. Customer review comments were reduced by up to 80%, recurring quality escalations stopped, and delivery confidence improved.

The most important outcome was not only schedule recovery. It was the restoration of trust in the migration programme. The client recognised that the engagement had progressed further than earlier attempts and that the project now had the delivery discipline needed to reach completion.

Why it worked

The recovery was driven by five practical choices:

1. Tarento took ownership of the outcome rather than limiting itself to assigned tasks.
2. MuleSoft capability was built inside the team quickly and pragmatically.
3. Quality was improved at the source through stronger peer review and shared learning.
4. Recurring issues were captured and prevented through a working knowledge base.
5. Customer support was extended when the programme needed stability most.

Together, these practices turned a governance-escalated migration into a controlled delivery programme.

For enterprises, the lesson is clear. Integration migrations rarely stall because of one issue alone. They stall when capability gaps, quality loops and shifting test schedules compound over time. Recovering them requires more than technical execution. It requires ownership, discipline and a team willing to stay close to the customer until confidence returns.

Have a migration that has stalled?

Complex integration migrations need the right mix of platform skill, delivery control and customer ownership. If your migration has gone off track, Tarento can help bring it back under control.

Start a conversation with Tarento.