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International Journal of Engineering & Technology, 7 (3.33) (2018) 225-228 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper LOD Development System for Medical Information Standard Hee-kyung Moon 1 , Sung-kook Han 2 , Chang-ho An 3 * 1, 2 Department of Computer Engimeering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Korea 3 Department of Financial Information Engineering, Seokyeong University, 124 Seogyeong-ro, Seongbuk-gu, Seoul, Korea *Corresponding author E-mail: choan@skuniv.ac.kr Abstract This paper describes Linked Open Data(LOD) development system and its application of medical information standard as Observational Medical Outcomes Partnership(OMOP) Common Data Model(CDM). The OMOP CDM allows for the systematic analysis of disparate observational database in each hospital. This paper describes a LOD instance development system based on SII. It can generate the appli- cation-specified instance development system automatically. Therefore, we applied by medical information standard as OMOP CDM to LOD development system. As a result, it was confirmed that there is no problem in applying to the standardization of medical infor- mation using the LOD development system. Keywords: Medical Information Standard, Linked Open Data(LOD), RDF Schema, CDM, OHDSI. 1. Introduction Recently, research on standardization of medical information has been actively carried out. However, medical data have been con- structed by adopting separate common data models with difficul- ties in standardization due to different data structures in hospitals [1, 2]. It is difficult to conduct multi-institutional research because the data structure and the data terms and code systems used by each institution are not standardized according to the purpose of utilization of medical information. In order to solve these prob- lems, this paper proposes a method for applying medical infor- mation together with high quality data set by mapping with Linked Open Data (LOD) based common data model of Observa- tional Health Data Sciences and Informatics (OHDSI). The CDM can accommodate both administrative claims and Electronic Health Records (EHR), allowing users to generate evidence from a wide variety of sources. It would also support collaborative re- search across data sources both within and outside the Korea, in addition to being manageable for data owners and useful for data users [3, 4]. In Korea, medical computerization has been carried out for the purpose of hospital management. With the spread of healthcare IT, medical information of hospitals was quickly col- lected and digitized on a digital platform. The application area of analysis including clinical decision support based on recently col- lected medical big data is expanding. In addition, personal medical information, which is individually managed for each medical insti- tution, is being converted into a system capable of exchanging information between medical institutions. But, these information systems have been developed at widely differing points in time, by using different development paradigms as well as different soft- ware and hardware platforms. For this reason, it is difficult to exchange medical information or conduct multi-institutional re- search. A complementary study of CDM and LOD is required for solving these problems. LOD is a new Semantic Web set of best practice of standards to publish and link heterogeneous data. It can be applied to the representation and management of public level health data to alleviate such challenges [5, 6, 7]. In this paper, we present the hierarchical separation based LOD development system and focus on the data set design of medical information by standard as OHDSI. The composition of this paper can be seen as follows. Section 2 shows the LOD Development system environments. Section 3 introduces applied medical information standard. The final Section summarizes this paper and discusses future research. 2. LOD Development System Environments This section describes the architecture of LOD instance develop- ment system. A typical use-case is also presented to show the effectiveness of the layer separation approach [8]. 2.1. Structure of LOD Instance Development In general, LOD sets consist of two elements: ontologies that de- fine the common vocabularies by means of Resource Description Framework (RDF) and the instances that represent the data of information resources [9, 10]. The domain ontology is usually developed by using the conventional ontology editors. Schema- Instance Interface (SII) is generated from the domain ontology represented by RDF and RDF Schema. The architecture of LOD instance development system i-Manager has three main function- alities as shown in Fig. 1. i-Manager creates the instance editing environment as the front end of the instance development. As the back end of the system, i-Manager provides many core functions such as instance editing and store, validation, visualization and navigation. Since the back end functions are implemented in add- on modules, additional subsystems such as SPARQL endpoint can be easily integrated.