  An Electronic Health Record (EHR) system must enable efficient availability
of meaningful, accurate and complete data to assist improved clinical
administration through the development, implementation and optimisation of
clinical pathways. Therefore data integrity is the driving force in EHR systems
and is an essential aspect of service delivery at all levels. However,
preserving data integrity in EHR systems has become a major problem because of
its consequences in promoting high standards of patient care. In this paper, we
review and address the impact of data integrity of the use of EHR system and
its associated issues. We determine and analyse three phases of data integrity
of an EHR system. Finally, we also present an appropriate method to preserve
the integrity in EHR systems. To analyse and evaluate the data integrity, one
of the major clinical systems in Australia is considered. This will demonstrate
the impact on quality and safety of patient care.
