Early case assessment is an initial, general inquiry of custodians and their data for the purpose of narrowing and defining scope. This practice can be repeated and will occur at multiple points in the EDRM. While conducting early case assessment, you will gain an understanding of document quantity to inform cost expectations, and document quality to inform your understanding of scope and relevance in preparation for the 26(f) conference. The stages of identification, preservation, collection and custodian interviews create a foundation for determining which data sources may be potentially relevant and which can be ruled out. Depending on the data volume in question and the level of burden to collect from certain data sources, it may be worth it to consider processing and temporarily hosting all collected data in your eDiscovery software tool to gain access to a full set of analytics which will help you gain clarity regarding the scope of discovery.