Abstrak

Generally, museum ambassador is based on various criteria from several assessment stages. The evaluation criteria for the audition stage are: interview, communication, appearance. The assessment criteria for the quarantine stage are: creativity, ability, liveliness, loyalty, responsibility, and written test. The final stage assessment criteria are: ideas, communication, and appearance. In the selection process, the committee used manual method so it was prone to errors. The decision support system used TOPSIS method. SDLC (System Development Life Cycle) was used as a design method. The research showed a score of 100 which means that the system is accepted by users. Meanwhile the user testing to four respondents obtained a percentage of 89.24% which means that the system is worth using. The system was developed in the web. So that is need more research to be developed in mobile.

The Open Group shows that Enterprise Architecture (EA) can produce an IT blueprint that can be used to determine business, technology, and information to support the achievement of an organization’s vision and mission. EA can also be seen as a model, a set of principles and methods used to produce the actual organizational structure of a company with business processes used including business operations, business planning, information technology, and information systems. EA is also in the form of models, graphics and narratives that will explain the scope of a company’s business processes and design. Koperasi Karyawan TEKAD do not yet have information systems and operations are driven by manual system. The purpose of this study was to design an EA, specifically in Koperasi Karyawan using the TOGAF framework. In other words, this architecture was created by emphasizing the relationship between IT and business. The EA model is intended to maximize business alignment with IT in all situations, but depends on the nature of the business and the capacity in business and IT management in Koperasi Karyawan. This EA design produces a blueprint that can be used so that service quality and performance can be improved.

No abstract

We carried out a comparative study on R-line and U-band energies of α-Al2O3: Cr3+ material, or the so-called ruby, estimated from one-electron and many-electron first-principles calculations. The estimations were performed without relating to any observed parameter. Although there are numerous reports on the ab-initio calculations of absorption spectra and multiplet energies of ruby based on many-electron approach, the investigation based on one-electron approach is basically impossible except for some particular states such as 4T2 and 2E. Here we compared the transition energies from the 4A2 state (ground state) to 4T2 state (U-band) and to 2E (R-line) of ruby estimated by one-electron and many-electron first-principles approaches. The one-electron calculations were carried out utilizing using discrete variational Χα (DV-Χα) method combined with ligand field theory, while the many-electron calculations were carried out utilizing using the discrete variational multi-electron (DVME) method. The results show that generally both of the one-electron and the many-electron first-principles calculations can be utilized to estimate the multiplet energies such as U-band and R-line energies. Nevertheless, the refined formula to estimate the R-line energy based on one-electron approach is necessary to enhance the concurrence with the observed data.