Scapa Technologies has developed a unique n-Tier Resonance technology that resolves the synchronization problems of stress testing in tiered architectures like Citrix ICA. Stress that is introduced at one tier in the architecture is made to resonate accurately through other tiers of the architecture so that it becomes possible for server loading patterns and client-end timings to reflect the effects of communications latency. The resonance is achieved by binding together tiers of the architecture using low-level synchronization logic.