Newsletter #1 - January 15th 2008

OpenMI Association Newsletter #1 - January 15th 2008

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The OpenMI Association Newsletter

The OpenMI Association is the organisation responsible for the development, maintenance, and promotion of the Open Modelling Interface (OpenMI). OpenMI is a standard, which facilitates the linking of simulation models and model components of environmental and socio-economic processes. It thus enables managers to more fully understand and predict the likely impacts of their policies and programmes.

Visit the OpenMI Association web site at to learn which models are already OpenMI compliant, get help on OpenMI model migration, request new features, exchange opinions and provide feedback related to OpenMI implementations.


OpenMI supports integrated flood risk modeling in Havant, UK

In 2005, Atkins, a major international consultancy, was commissioned by the Environment Agency's Southern Region to undertake a flood risk mapping study of the Havant catchment. Atkins decided to look at the flooding as an integrated problem. The release of the OpenMI provided the opportunity to model the culverted reaches (represented in InfoWorks CS) linked to the river reaches (represented in InfoWorks RS). To have achieved the same level of integration without the OpenMI, would have involved a very long, complex iterative process in which level and flow results were passed between both models and the models run again and again until convergence was reached - a process that might not have yielded a satisfactory result. With OpenMI, the link simply passes results from one model to the other as they run.

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Real time control using OpenMI

Versions 1.4.Net (org.OpenMI.Standard, SDK and GUI) and 1.4 Java (org.OpenMI.Standard) were released in December 2007. They can be downloaded from

A project was set up to optimize a complex real-time control system that ensured wastewater flowing through the Bournemouth sewer system would not pollute the river to which the treated flows were discharged. The aim was that water quality levels in the river should determine the amount of flow that could either be passed through the treatment plant or should be retained in the sewer system. OpenMI was used to link wastewater and river models in order to achieve this highly-sensitive real-time control. Bournemouth is a large catchment served by several large sewage pumping stations and a 5km long coastal interceptor sewer, which varies between 1m and 2m in diameter and takes flows to the wastewater treatment plant.

The OpenMI Association Membership Application form has become available on the OpenMI website.

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Linked models assess integrated urban flooding interactions in Kenilworth, UK

A new OpenMI Association website supporting the needs of the OpenMI community will be available by the end of January 2008 from the same web address (

Future Events

Assessing the impact of sewage discharges and overland flows from urban areas to watercourses and the subsequent effects of watercourse levels on the sewerage system requires an holistic approach to modeling. Accordingly, a project for the mainly-residential market town of Kenilworth in the affluent west Midlands, which had a history of flooding issues from various sources, utilized both InfoWorks CS and InfoWorks RS, linked via Open MI. The linking of models increased the ability to understand the complex hydraulics. It is possible to model the interactions through manual transfer processes, however unless a laborious iterative approach to this manual transfer is adopted not all feedback interactions are accounted for.

OpenMI Association Dissemination Committee Meeting

January 9, 2008

Aartselaar, Belgium

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The 2nd OpenMI-Life and Association Workshops were successfully held last month in Wallingford, UK

On the 20th and 21st November 2007, the 2nd OpenMI-Life and OpenMI Association Workshops took place in Wallingford, UK. During the 1st day, linked modelling results were presented from seven applications of OpenMI in the Netherlands, Belgium and Greece. The case studies addressed issues related to the implementation of the EU Urban, Flood, and Water policies. In the morning of the 2nd day, practical applications of integrated modelling were presented by competent authorities, consultants and model developers outside the OpenMI-Life project community. Finally, the 2nd day afternoon workshop session was divided into two parts: (a) an open session for developing strategy, where guests could attend and contribute their views as to how they would like to see both the OpenMI and Association develop, and (b) a session for OpenMI-Life project members to discuss and work together on project issues.

OpenMI Association Technical Committee Meeting

February 4-6, 2008

Copenhagen, Denmark

OpenMI-Life Documentation Meeting

February 7, 2008

Copenhagen, Denmark

OpenMI Association Dissemination Committee Meeting

March 12, 2008

Delft, the Netherlands

OpenMI 1st Annual General Meeting

March 13, 2008

Delft, the Netherlands

Information Desk Standards Water received OpenMI Training

The Dutch "Information Desk Standards Water" (IDSW) develops, maintains and promotes several Standards for Information exchange relevant to Dutch Water Management. Examples are a data model, data definitions and exchange formats. Last year, the board adopted the OpenMI as one of the standards to promote. Recently Delft Hydraulics provided a one-day workshop to employees of the IDSW such that the IDSW can actively promote the OpenMI, can answer basic questions and can point towards professional help. This is a major step in promoting OpenMI as the mechanism for developing integrated systems.

Portal on useful 'standards' for software in water management launched

Besides OpenMI there are many other useful products around which are of value to integrated modelling and data exchange. There are quite a number of toolboxes, XML-schemes, data-dictionaries and glossaries around that may be re-used in other initiatives. But, how can you find them? And, where do you put your team's effort? To improve the re-use of such 'standards', a portal has been set up which already contains a significant number of links to useful 'standards' and tools. The novelty of the portal is that it is easy to add new standards.

OpenMI Association Executive Committee Meeting

March 13, 2008

Delft, the Netherlands

Web conferences

OpenMI Association Technical Committee Meetings

January 9, 2008

January 16, 2008

January 23, 2008

January 30, 2008

February 12, 2008

February 19, 2008

March 5, 2008

March 12, 2008

March 26, 2008

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The OpenMI Association becomes a legal entity

Since the end of the HarmonIT project, the provisional OpenMI Association has taken responsibility for driving forward the Open Modelling Interface (the OpenMI). At 11:30 on June 4th 2007, the new Association finally cleared the last hurdle in establishing its Charter and became a legal entity under Dutch Law with its registered office in Delft. The Association's objectives are to promote the development, use, management and maintenance of the OpenMI. Membership is open to organisations and to all persons who have an interest in the use and development of the OpenMI.

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© 2008 OpenMI Association