During the past years I saw many projects where nearly any kind of business requirements was modeled into the technical object model, independent of the reason of the requirement. In many cases, modelling business requirements into a technical object model is quite ok and I agree with it in general. But also modelling business requirements into the affected business objects can lead into a ugly and complicated data structure. Let’s look into a short example to illustrate my thoughts: Continue reading “Don’t model Business Behavior in Objects!”
This post explains how you can secure your business objects in a model driven way, using the Imixs-Workflow engine.
Most applications deal with security in a functional way. This means that a business application typically defines different functional roles which are mapped to different users. For example let’s look on a simple Ordering System. In an Ordering System, we will have roles like
- ‘Order-Creator‘ – creating the order
- ‘Order-Approver‘ – validating and approving
- ‘Order-Executor‘ – execution
These roles are typical for such an business application and mostly tightly coupled to the corresponding business methods – e.g. createOrder(), approveOrder() and executeOrder(). This works well in a monolithic business application where you can control the security layers as also the business logic. But as more complex the business application becomes, also the enclosed security becomes more complicated. For modern application design, in addition, you often have to deal with external web services and business logic which need to be adapted easily to changing requirements. So this static security model leads into a hell of hard coded business rules or, what is worse, can no longer guarantee the security. Continue reading “How to secure Business Objects”
With the latest version 1.4.4. of the BPMN modelling Tool Imixs-BPMN, the open source project ‘Imixs-Workflow‘ provides several enhancements in modelling human centric workflows. Among other new features it is now possible to model scheduled events on a working day basis. This allows scheduling events in individual time frames ignoring weekends. Another enhancement is the visualisation of custom task properties. ACL settings or custom editor settings are now visualized by info icons. Also the Process-ID of a Imixs-Task element is now displayed in the graphical representation of a BPMN model.
Some bug fixes align the new release with the latest version of Eclipse BPMN2 for the Mars Release. The new version can be downloaded and installed from the Eclipse Marketplace. Further information about the BPMN modelling tool can be found on the project homepage www.imixs.org. Take also a look into the tutorial “How to Create a Workflow Model“.
Version 1.2.4 of the Eclipse BPMN2 Modeller Plug-In is now available for Eclipse Mars. The new release provides a lot of improvements and bug fixes. See the New & Noteworthy page for what’s new in Eclipse BPMN2 Modeller. The latest version can be installed from the Updatesite.
Version 1.2.4 can be installed together with the Imixs-BPMN Plug-In which is providing extensions to deploy a BPMN 2.0 model into the Imixs-Workflow Engine. Imixs-Workflow is an open source workflow engine for human-centric business process management (BPM) based on the Java EE technology stack. Read more about Imixs-Workflow here.
Today we released a new minor update of the Imixs-BPMN Modelling Plugin for BPMN 2.0. This update contains some layout improvements and also updates to the latest Mars release 1.2.3 of the BPMN2 Plugin.
The new Imixs-BPMN Plugin now also provides a new feature to model schedule events by defining a time-period/delay in workdays. This new modelling feature will be supported with the next upcoming release of Imixs-Workflow 3.7.0.
The plugin can be installed from the Eclipse Marketplace or from the Imixs Update Site:
The latest BPMN2 Plugin for Eclipse Mars can be installed from:
The Imixs-Workflow project provides a new tutorial explaining how a human-centric workflow can be modeled with Imixs-BPMN. Imixs-BPMN is a BPMN 2.0 modelling tool based on the Eclipse Platform. The BPMN Tool allows to design workflow models in a very flexible way. The BPMN 2.0 standard elements are extended by Imixs-BPMN providing custom task and event elements. The tutorial explains how to model typical scenarios of a human-centric workflow. Those models can be executed immediately in the Imixs-Workflow engine. See also the project ‘Imixs-Office-Workflow‘ an an example of an integrated workflow suite.
After an update of the Eclipse-BPMN Plugin or the Imixs-BPMN Plugin in some cases it can happen, that an existing process model is no longer loaded correctly into the BPMN editor. In this case it is recommanded to remove the file
which is located in the Eclipse workspace under the folder .settings/
After restarting Eclipse the BPMN Plugin is working again correctly.
The new version 1.3.0 of the BPMN modeling tool “Imixs-BPMN” is now finally released. The version supports the current Mars release of the Eclipse platform and offers several improvements and bug fixes. The allocation of write- and read-access in a running process instance has improved within the new version. ACL settings can take place now not only at the event level, but also directly in the process level. This allows to model business processes with different ACL settings much faster. The new ACL settings are supported by the Imixs-Workflow Engine since version 3.4.0. Another improvement represents the modeling of ‘versions’ within a process model. Thus new versions can be creating during a running process. Versions of a process instance can, for example be archived by the Imixs-Workflow Engine. So complex business processes become more transparent with the new modeling features.
The next upcoming Update of Imixs-BPMN includes a new functionality concerning the security API of Imixs-Workflow. With the new version it will be possible to define an ACL for a process instance on the Task level in a BPMN diagram. In earlier versions this feature was only available on the Event level. With this extension now setting the ACL for complex process models is more easy and models can be created faster.
With the latest version of Imixs-BPMN the Imixs GmbH provides now a free BPMN modeling tool for modeling workflows according to the BPMN 2.0 standard.
Using the BPMN 2.0 standard, business processes can be documented even faster and more clearly. BPMN provides an easy notation also to discuss complex business processes together with all participants involved in the process.
With Imixs-BPMN these processes can now be executed directly in a professional workflow management solution. Complex business processes and changing business models can be managed with Imixs-BPMN in a flexible and transparent way.
With the combination of Imixs-BPMN and the open source solution Imixs-Workflow, all types of workflows can be easily modeled and executed in a robust and scalable workflow management software. Also existing BPMN models can be enhanced with the capabilities of a wokflow management solution. Imixs-BPMN extends the Eclipse BPMN2 Modeling Framework which provides a powerful modelling solution based on the Eclipse platform.
The Imixs Software Solutions GmbH located in Munich has specialized in the development of professional business process management solutions and supports companies implementing their custom business processes. Due to the consistent focus on open source, Imixs-Workflow provides a clear cost advantage. No license or update costs incurred in the use of this solution. With its service concept, the Imixs GmbH offers a transparent business model which combines the advantages of a modern software platform with a professional consulting concept.
Read more about Imixs-BPMN at: http://www.imixs.org/modeler/