PT. Pena Berkah Ilmu is a medium-sized company engaged in Food & Beverage, social and humanitarian institutions, event organizers, travel and merchandise sales where this company still implements attendance methods such as signatures for employees. The attendance of each employee is recorded through the existing attendance system. However, in its implementation, sometimes there are some persons who do not attend or forget to attend. This results in the employee being considered absent. This desire arose because this company experienced difficulties in processing attendance information data, resulting in more and more hardcopy archives and making it difficult when the company's management intended to recap and re-collect data and employee attendance lists. This study uses the waterfall method which describes a systematic and sequential approach to software, starting with the specification of employee requirements, design, modeling, construction, delivery of the system to employees and complete software support that is produced. With this attendance application, it will be easier for employees to carry out attendance attendance even though they are outside the office and attendance data will later be stored in the database so that it will make it easier for the personnel department to be able to recapitulate employee data.

The research objectives are; designing a web-based information system that provides information about tourist attractions, culinary delights, and lodging in the Nagekeo district. In the application development process using the Rapid Application Development (RAD) method and modeling design using Data Flow Diagrams (DFD). From the discussion that has been described, it can be concluded that the results of this study tourists can easily and quickly get information about tourist objects, culinary, lodging around tourist sites in Nagekeo district. It is estimated that tourism development technology will continue, which is a big opportunity for companies and destinations, especially in Indonesia. There is a need for studies on tourists on cultural experiences, streaming platforms, metaverse technology, biometric payment methods so that there are innovations to attract visitors and add value to the local tourism industry through the implementation of digital solutions.

This research aims to build a blended learning design model that can be used effectively and systematically by lecturers in developing blended learning systems for accounting subjects at Institut Teknologi dan Bisnis Ahmad Dahlan Jakarta (ITB-AD). It is important because the research results model can be immediately utilized by accounting lecturers to design blended learning. This study is a design based research in the form of formative research. Data collected by qualitative means through interviews, document analysis, surveys, and observations. The contribution of this study is in the form of a model that is built based on existing learning design models, specifically adapted for learning accounting subjects in ITB-AD, according to the characteristics of students, lecturers, and institutions. The model developed is called the BLADe model.

Tourist sites are a natural sector in the development of economic, business, social and environmental qualities in a country. In various aspects, the growing potential of tourist sites can also have an impact on most developing countries. If a tourist location is developed, modern and maintained, it can provide more value for a country. The purpose of this research is to make it easier for visitors to find tourist sites that they don't know about around Lake Toba and make it easier for them to find routes for tourist locations they want to visit. Making available tourist sites more widely known by tourists, as well as culinary and typical souvenirs from these tourist attractions are also known to tourists. The Simulated Annealing algorithm can provide the closest route from several tourist location points and is implemented in making geographic information system applications. The results of the study in the form of a geographic information system application to determine the route to the tourist location of Lake Toba with the Simulated Annealing method can help tourists to determine the route of tourist sites that they have not yet explored and make it easier for them to go to the location they want to visit so that they can save time on their way.

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