This blog post presents the cross-cutting requirements for SysML v2. It is part of a blog post series about the upcoming new SysML v2 and SysML API & Services standard. The blog posts present the requirements for the standard stated in the request for proposals (RFP) published by the OMG. See end of this post for a list of all posts of this series including a link to the first post of the series that provides an overall introduction. The cross-cutting...

This blog post presents the SysML v2 language architecture and formalism requirements. The previous blog post gave an overview of the general requirements on proposals for OMG Request for Proposals (RFP). Following blog posts present details of specific sections of the RFP’s. A fundamental concept of a modeling language architecture is the metamodel. It defines the concepts of the language. For example, the following figure depicts a simplified extract of the UML metamodel. The figure shows the definition of the UML model...

In time for Christmas, the eBook edition of my new book is ready and published. The print edition will be released in early January when the proof was successful. Organizations face an increasingly complex and dynamic environment on the market. The Internet of Things and in particular the industrial internet respectively Industry 4.0 change the rules. The development of systems requires a new kind of engineering and thinking. Companies that are capable of adapting themselves to the frequent and partially disruptive changes...

It is tempting to connect the small port boxes in the block definition diagram with solid lines (= associations) to express that the corresponding building blocks communicate with each other. That is forbidden! But why? This blog post gives you the answer. The SysML forbids an association between ports and a good modeling tool should not allow that either. Therefore, I could create the following image only with the help of an image editor. To understand why this is forbidden, I have...

This blog post gives you a brief overview of the general requirements on proposals for SysML v2 and the SysML API & Services. The previous blog post gave an overview of the RFP’s. Following blog posts present details of specific sections of the RFP’s. The general requirements are valid for all proposals for OMG specifications and are not specific to SysML. So, some of them are only partially relevant for SysML. General requirements If a proposal uses models, it shall use an OMG...

This blog post gives you a brief overview of the SysML v2 RFP and the SysML API & Services RFP. The previous blog post introduced the RFPs and explained what it is all about. Following blog posts will present details of specific sections of the RFP’s. In December 2017 the OMG published the SysML v2 RFP. You can download it for free from the OMG website: https://www.omg.org/cgi-bin/doc.cgi?ad/2017-12-2. It lists 136 mandatory requirements and 28 non-mandatory requirements for the upcoming new SysML...

It is time for the next generation of the Systems Modeling Language (SysML). More than 10 years ago the Object Management Group (OMG) published SysML version 1.0 to provide a simple but powerful modeling language for a wide range of systems engineering problems. We have learned a lot from many industrial applications of SysML. That includes the benefits as well as the limits of SysML. Additionally, model-based systems engineering is getting more and more popular and leads to more requirements for...

MBSE4U published a new book. It is only available in German. The introduction of new technologies as part of the digitalization of the maritime domain leads to the establishment of a large number of heterogeneous non-cooperating systems in a complex system environment. With the introduction of e-navigation, the International Maritime Organization (IMO) wants to enable interoperability between established and future systems, including the more operational processes. The Maritime Architecture Framework (MAF) for describing socio-technical maritime systems introduced in this book provides the...

A post by guest author Guillaume Finance: Following the success from last year with the new two-day event made up of a training day (optional) and a day of user stories, technical expertise, lessons learnt and networking, the next EA User Group for Sparx community of users will take place again this year in London. We will gather again at the fantastic Code Node venue from SkillsMatters (London EC2M 7BT) on Thursday 7th and Friday 8th of June. For more information, and to purchase tickets online, please...

A blog post from my colleague Axel Scheithauer reminded me of the birthday of UML. It seems that no one - including the OMG - except him, has recognized the 20th anniversary of the UML. I will not copy Axel's blog post and instead just highlight some facts about UML and give you a gift if you read on. If you understand German, you can read Axel's blog post here. If not, try the Google-translated English version here. In 1997 the OMG has...