The ArchiMate ® Enterprise Architecture, by The Open Group Standard,  is a modeling language to express Enterprise Architectures by diagrams. It offers different concepts for viewpoints of specific stakeholders and relationship between a source and target concept to define structural, dependency, dynamic, or other types of interlationship.

My viewpoint is that of a Business Process Analyst and I found in Archimate® elements very useful to express in a synthetic way the Business Process Architecture, that model the hierarchy model of processes, the Business Process Network, where is showed the interrelationships between processes, but also, these two aspects in a unique diagram.

The above Archimate®  diagram, using process element and relationship elements, composition and aggregation, shows very well the hierarchy of Maintenance Plan business process (one of the business process of Quality Process), but, also well indicates the relationship between some subprocesses of this macro process.

So, how do you read this diagram?

The Plant Maintenance process is the aggregation of Planned Maintenance and Not Planned Maintenance processes.

Planned Maintenance process can be express in term of Maintenance Plan  which is composed by zero or one Event Maintenance Execution processes which in turn is composed by one or more Activity Maintenance Execution processes. An event maintenance execution can’t be exist with a maintenance plan, this has not meaning, and the same you can say about an activity maintenance execution that can exists only in relationship to an event execution case.

The Not Planned Maintenance process can be express in term of Maintenance Request and Extraordinary Maintenance Execution where the cases of these two processes can exists even if one of them doesn’t exist: a request can generate an extraordinary maintenance execution or not, and a case of extraordinary maintenance execution can exists without in relationship with a request.

This is what I know …so far.