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Message: [QUOTE="JohnH, post: 141739, member: 5139"] You can't have circular references, so you have to arrange your stuff in a provider-consumer fashion. Logically if A needs B to do its job, and B needs A to do its job, then neither can do their job. Typically libraries provide functionality and often return results of that. That is also the school of thought in OOP, avoid dependencies. For example you should avoid what you do in logikklassen, where you hard code setting a specific label text to some result. Instead typically you return results that a consumer can use (obvious choice for 'minmetod'), or if something needs to be set by method provide that as input parameter (using a type not defined by consumer). [/QUOTE]