parameter and accessor

I'm embedding a component in a page like this +component|className=HRWine+ On the embedded component I have descriptionContextClassName ^ MAStringDescription new parameterName: 'className'; accessor: #contextClassName; priority: 100; label: 'Name of the context class'; beRequired; yourself What I get is an entry in the components properties with an association description -> value. That is good so far. I'm asking myself what is the best way to access the value. If I don't specify an accessor on the description magritte creates one itself leading to equality check failing in properties when doing self propertyAt: self class descriptionContextClassName. But if I have to specify an accessor I'm wondering why the accessor isn't used to store the value in the component. Do I misunderstand something or is there a preferred way of accessing parameter values? thanks, Norbert