ASMT
We re-engineered it and develop it: safety events found in surveillance data, for investigators to replay.
Read the case study →Our client · since 2008
Prime contractor for EUROCONTROL's safety tools
Our first EUROCONTROL contract came in 2008. Since then we have re-engineered and developed ASMT, rebuilt TOKAI and RAT as web applications and developed APF. We released TOKAI 4 in 2025 and ASMT 6 in 2026.
In the safety loop
Year by year
From the first contract to ASMT 6.
- 2008First EUROCONTROL contractEUROCONTROL
- 2009We take on ASMTASMT
Our first safety tool for EUROCONTROL: we move a tool designed in 1996 to a new architecture.
- 2011TOKAI and RAT on the webTOKAI
We turn RAT into a web application and build the web version of TOKAI around it.
- 2014–16TOKAI goes live on the webTOKAI
At DFS, Austro Control and NAVIAIR.
- 2022New contractsEUROCONTROL
EUROCONTROL awards us new contracts for ASMT and TOKAI, and we start rebuilding both.
- 2023Two EUROCONTROL guidelinesEUROCONTROL
We contribute to EUROCONTROL's guidelines on rostering and on fatigue management in rostering.
- Nov 2025We release TOKAI 4TOKAI
The rebuilt TOKAI, updated every few weeks since.
- Jul 2026We release ASMT 6ASMT
Rebuilt as containerised services, including for closed networks.
The tools
What we build, tool by tool.
TOKAI and RAT
We built it as a web application around RAT, and we develop and maintain it. TokAI is in development with EUROCONTROL.
Read the case study →APF
APF, for safety performance data.
We developed APF, the Aerospace Performance Factors, for EUROCONTROL. It brings system performance and safety data together as data cubes that safety managers and decision-makers explore.
The guidelines
Two EUROCONTROL guidelines.
We contributed to two EUROCONTROL guidelines: NMD/SAF/2653, on rostering, and NMD/SAF/2611, on fatigue management in rostering. The rostering guideline takes its use cases from SkyRoster, our own product.
In their words
From the people who use the tools.
In our interactions with JLG, we have found the team to be committed, talented and professional, providing workable solutions in a challenging environment.
The JLG Team brought us – the ANSPs around the globe – from “stone-age” to the digital, data driven and modern technology.
Next step
Work with us.
Want to use TOKAI or ASMT?
EUROCONTROL provides both to air navigation service providers.
Go to EUROCONTROLNeed a platform of your own?
A safety tool or data platform, built and supported by one team.
Email usWho else will ask, and what they'll want
- ProcurementThe EUROCONTROL reference, on Trust.
- Your programme managerEach tool in depth: ASMT and TOKAI and RAT.
- IT securityCertification facts and written policies, on Trust.