Ensuring data quality and integrity is a key factor for successful HIE. Data quality refers to the accuracy, completeness, timeliness, relevance, and consistency of the data, while data integrity refers to the protection, validation, and verification of the data. To ensure high-quality data and its integrity, you should use standardized data elements, codes, and terminologies such as SNOMED CT, LOINC, ICD-10, and CPT. Additionally, you should implement data validation and verification processes such as data cleansing, matching, mapping, and auditing. Moreover, you should adopt data security and privacy measures such as encryption, authentication, authorization, and auditing. Lastly, it’s important to follow data governance and stewardship policies and procedures such as defining data ownership, access rights usage rules and retention policies.