To mitigate inefficiencies in manual contact tracing processes, Digital Contact Tracing and Exposure Notifications Systems were developed for use as public-interest technologies during the SARS-CoV-2 global pandemic. Effective implementation of these tools requires alignment across several factors, including local regulations and policies and trust in government and public health officials. Careful consideration should also be made to minimize any potential conflicts with existing processes in public health which has demonstrated effectiveness. Four unique cases-of Ireland, Guayaquil, Haiti, and the Philippines-detailed in this paper will highlight the importance of upholding the principles of Scientific Validity, Necessity, Time Boundedness, and Proportionality.

翻译：为了减少人工接触追踪过程中的低效率,开发了数字联系追踪和接触通知系统,以便在SARS-COV-2全球大流行病期间作为公共利益技术使用。这些工具的有效实施需要协调若干因素,包括地方条例和政策,以及对政府和公共卫生官员的信任。还应认真考虑尽量减少与现有公共卫生程序的任何潜在冲突,这些冲突已经证明是有效的。本文详述的爱尔兰、瓜亚基尔、海地和菲律宾的4个独特案例将强调坚持科学有效性、必要性、时间缺陷和相称性原则的重要性。