ONLINE technical meeting through a videoconferencing platform

Note: The option for an in-person event of this technical meeting, at the Vienna International Centre, is subject to consideration of the COVID19 guidelines for in-person meetings at the VIC and the COVID-19 measures of the host country.


30 June to 1 July 2022
(Dates for 2023 to be decided)

13:00-16:00 UTC

The working language will be English

Capacity Building and Training Section (IDC/CBT)
International Data Centre Division
CTBTO Preparatory Commission 
P.O.Box 1200
1400 Vienna, Austria
Tel.:+43 1 26030 6484
Fax:+43 1 26030 5973


The PTS is leading the IDC SHI Reengineering project since 2014 with the goal of creating modernized, open-source software for SHI processing, and improving maintainability and extensibility to the system. Starting 2019, the project entered the Implementation phase and is currently under active development.

The aim of this Alpha Tester Group (ATG) is to enhance the engagement of the NDC community towards the IDC Reengineering project. It allows low-barrier access for State Signatories and NDCs to the current state of the reengineered system.

The role of the ATG participants is to validate the results of the system, provide feedback to the system design and usability.

Following ATG 2021, we are launching a new call for participation for 2022 and 2023 ATG activities.

The objectives of the Technical Meetings prior to a testing session are to:

  • Present the scope of the testing session,
  • Provide the status of development,
  • Guide the testers on the discovery of the newly developed features,
  • Enable ATG members to run testing scripts and adapt them to different test cases.

The ATG project is funded by the European Union in the context of the EU Council Decision (CFSP) 2020/901 of 29 June 2020.

There will be one testing session in 2022 where the ATG Members will be requested to:

  • Participate in the two days kick-off meeting,
  • Perform the evaluation of the system. Each ATG member will be provided with a test instance of the system, accessible over the internet, for a duration of one month,
  • Provide feedback to problems encountered and opportunities for future developments,
  • Liaise with other technical users in their NDC and represent their opinions on the ATG.


NDCs involved in Alpha Testing activities are expected to make time available for the ATG Members to perform the related activities. It is estimated that each ATG member will need to devote around 10 days of work in 2022 to ATG activities and between 10 and 20 days in 2023.

To be effective in this work, it is recommended that each participating NDC nominates only one person for ATG membership and that the ATG do not exceed 20 to 25 members with broad geographical distribution. After a careful selection process, and once the testing instance is delivered to the NDC nominee, other members of the NDC can be part of the testing.

Members of the ATG should be:


  • NDC technical staff/authorized users (preferably Principal User or Regular User),
  • Experienced in waveform processing and knowledgeable about the current IDC SHI processing,
  • Experienced in waveform technology and/or similarly experienced in nuclear test ban verification technologies,
  • Experienced in software programming or scripting, ideally using Python (Linux background and some experience working with APIs are desirable).


Deadline for Application: 30 April 2022

States Signatories wishing to nominate participants are requested to inform the Provisional Technical Secretariat (see Point of Contact above ) through their respective Permanent Mission by the deadline set for application.

In addition, applicants are requested to register online at the CTNW platform of the Commission: Opens external link in new window


  • Speed of Internet connection not less than 10 Mbps

  • Computer to be used during the online training course:
    - Desktop with two connected monitors or laptop with one external monitor is recommended so as to follow the course and access test instances at the same time;
    - CPU ≥ 4 cores, RAM ≥ 8GB;
    - Recent web browser of your choice

  • Headset for high-quality audio and web camera.