This paper presents a development process of a forecast and monitoring system for a photovoltaic (PV) solar plant. PV solar system is one of sustainable resource of energy. So, Korean government encourages businessmen to build a PV solar plant. Renewable Portfolio Standard (RPS) system is one of encouraging policies. Most RPS businessmen use monitoring system for a PV solar plant and they need an accurate forecast of power generation for business purpose. Therefore we propose an estimating algorithm of power for a PV solar plant using weather forecast. Proposed algorithm is implemented in a forecast and monitoring system and it works better than existing estimating methods.

Smart work is advanced business concepts can work efficiently anytime and anywhere beyond conventional office working. Smart work includes mobile office using mobile devices, remote working(home working) using video conferencing system and mart work center. This paper presents development processes of a smart work for After business especially for the elevator industry. We called developed smart work for A/S work. A/S work using iPhone has some advantages compare to previous A/S system: 1) Before/After photo management. 2) The assessment process to customer satisfaction. 3) The work history management using app. 4) The inquiry and confirmation function to current status of all workers. 5) The group SMS function sending selected workers. A/S work was used ‘M’ elevator A/S business and found to be a efficient smart work system.