In relation to the European Union, harmonisation of law (or simply harmonisation) is the process of creating common standards across the internal market. Though each EU member State has the primary responsibility for the regulation of most matters within their jurisdiction and consequently each has its own laws.his is the appeal of harmonisation, it takes into account the local factors yet applies general principles to make a consistent framework of law. It generally incorporates local factors under a relatively unified framework. An example of harmonisation can be drawn from the European Union and the use of Directives.