Skanska

Migrating Skanska's project management application for 4,500 users

ConstructionSweden / Global

4,500

Total users

850

Forms & dialogs

7 months

Core migration

Skanska's SPIK project management suite running in a web browser after the Wisej.NET migration

Download the Skanska case study (PDF)

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Skanska is one of the world’s largest construction and development groups, employing around 32,500 people and running roughly 10,000 ongoing projects across Central Europe, the UK, and the US — from airports and bridges to hospitals, power plants, and railways.

At the heart of Skanska Sweden’s operations is an in-house suite called SPIK, which supports project planning, cost calculation, and reporting. As application specialist Christer Lindström explains, SPIK manages the entire building process from early estimates through project warranty, covering bidding, financial control, risk, change management, and purchasing.

The challenge

Skanska set out to modernize the desktop SPIK application into a web-based solution for its 4,500 users — a suite spanning roughly 850 forms and dialogs. After analyzing the market, the company engaged Ice Tea Group (ITG). The work needed to rewrite or convert the front end while leaving the backend untouched, so the old and new systems could run in parallel during a gradual rollout.

The solution

During procurement, Skanska compared Wisej.NET against full-rewrite proposals and found migration "much cheaper compared to other alternatives" — making cost a deciding factor in choosing ITG, since a full rewrite was judged a major risk in both cost and complexity. A proof of concept was running in the browser within two weeks, and the core migration took seven months excluding QA, including UI/UX optimizations. ITG estimated that a manual rewrite would have taken around 27 man-years. The shortened timeline let Skanska add feature enhancements before release, and users could compare the old and new versions against the same database. Wisej.NET also reduced Citrix and licensing costs, cut release cycles dramatically, and kept the existing application handbook and Help System intact.

The outcome

The full web migration of Skanska’s comprehensive Windows project-planning application was completed across Sweden, with the new version identical to or faster than the original in every area.

Supports 1,000 concurrent and 4,500 total users with strong performance and scalability
New web version is identical or faster in all areas
Data, reports, and algorithms preserved with a guarantee
Deployment cycle reduced from one month to one day
Completed within one year, versus an estimated 27 man-years for a manual rewrite

“We could continue working in a well-known environment, just as before — it was robust and easy to use, and the faster release cycles boosted our productivity.”

Christer Lindström — Application Specialist, Skanska

About Skanska

Founded in 1887 as a Stockholm concrete manufacturer, Skanska AB is now a leading global construction and development group, behind projects such as the UK’s M25 Motorway and the LaGuardia Airport redevelopment.

About Ice Tea Group

Based in Washington, DC, Ice Tea Group LLC specializes in enterprise application modernization and web frameworks. Since 1998, its tools have been used by more than 600 companies in over 4,800 applications across 50+ countries, including Fujitsu, Goodyear, Xerox, Volvo, Merck, GE Healthcare, and Siemens.

Ice Tea Group and Skanska AB make no guarantees or warranties; projections are opinion and not contractual obligations.