This contribution offers a partial explanation of the differences between procedural systems. In most jurisdictions, civil procedural regulations constitute a carefully designed system. Generally, a number of underlying principles, guidelines, theories and objectives can be identified that clarify and justify more specific rules of procedure. It will be argued that the main differences between legal systems flow from different political and theoretical views of those who determine and shape the form of the legal process. This contribution identifies the ideological influences on the rules of procedure in a number of influential jurisdictions.