# Understanding CRVS Before considering to build a CRVS system using OpenCRVS it is important to understand the business domain. There is a lot of helpful material that explains what CRVS is and how it should work and this section highlights a number of useful references. Take the time to review the domain specific material below before proceeding with an implementation of OpenCRVS. | CRVS Reference | Description | Link | | ------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- | | (UN) Handbook on Civil Registration and Vital Statistics Systems: Management, Operation and Maintenance | An exhaustive reference of administrative arrangements, operational functions, quality, interoperability and digitisation of civil registration and vital statistics systems | | | The Civil Registration and Vital Statistics Digitisation Guidebook (CRVS-DGB) | An online resource that provides step-by-step guidance for countries to plan, analyse, design and implement digitized systems and automated processes for CRVS | |