Hyung-Joon Kim

Design of Zigbee-BLE Gateway Direct Communication System for Smart Home Environment

With the recent introduction of network technology to home appliances, there is a growing interest in smart homes that provide convenience in life using home gateways. However, as smart devices are not equipped with Zigbee modules, a server is required to access home appliances through their Zigbee modules. Therefore, in this study, a Zigbee-Bluetooth low energy (BLE) gateway direct communication system was designed, which is capable of direct access between smart devices and Zigbee-based home appliances through communication between Zigbee and BLE without a server.

Design of TDD-Based Automation System for Android Application Test Automation

The Android platform does not support interoperability among different platforms, and this causes difficulty for developers because they must test applications on different platforms and devices. To solve this problem, this study proposes a test automation system applying test driven development (TDD) that allows automatic performance of repetitive tests. To design the proposed system, test case generation was automated using Annotation.

Design of Automatic Source Code Generation Based on User Pattern Definition

Software engineering has been established with various development methodologies and software development process models, which have enabled increases in software production efficiency and improvements on product quality. However, the time taken to develop software and input human resources are the main causes of cost increases. Thus, the project will be delayed as the time taken to complete iterative tasks increases. In this regard, this paper designs an automatic source code generation system using meta data based on user patter definition in order to resolve the problem.

Design of Nonlinear Data-Based Wellness Content Recommendation Algorithm

As IT technology has advanced and people’s interest in wellness has increased, recommendation algorithms are being developed to allow people to use wellness content easily. However, existing recommendation algorithms use data entered by users and content-based filtering to recommend content, making it difficult to recommend areas of interest which change in real time. Therefore, in this paper we propose an algorithm which creates user information based on nonlinear social network data and makes recommendations in real time in order to reflect the user’s recent interests. The test result verified that the proposed algorithm improved accuracy by 31% compared to that of the existing content-based recommendation algorithm.

Revitalization Plan and Value of Social Network Service in the Business Organization

The purpose of this study is to find the beneficial plan for business success by the advantage of social media service in the business organization. There is few research for applying social media on a variety of fields in business organization although many companies are trying to find the way for its application. Hence, this study identifies the possibility for the utilization of social media services, and it also finds the plan for their effective application. The social relationship is created by increasing communications between users of social media service. The research model is established on the basis of the hypothesis that the social relationship affects knowledge share, pursuit of ego, social participation, amusement. To maximize the impact of results, the research was conducted on the basis of the target on two groups including the business men and non-business men who use social media services. As results of the research, the business men tend to appeal their impression based on sharing knowledge with anonymous people. Also, it is necessary to make a social participation to a management participation, and to utilize the social media in the organization by including amusement to its function. This research is expected to have significant implication to companies which wants to apply social media services in the future.