Usability merupakan sejauh mana kelayakan suatu sistem berdasarkan efektivitas, efisiensi, dan satisfaction pada konteks tertentu. Pentingnya usability untuk mengukur kualitas kelayakan suatu sistem yang mengarah pada beberapa metode pengujian. Website resmi Universitas Brawijaya dengan domain ub.ac.id adalah media informasi online yang berisikan informasi tentang UB. Berdasarkan Pelayanan Informasi dan Komplain (PIDK) UB terdapat keluhan tentang dokumentasi resmi UB yang belum diperbarui, selain itu menurut Pusat Jaminan Mutu belum terdapat adanya standar khusus, dan TIK UB belum pernah melakukan evaluasi website. Oleh karena itu, dibutuhkan evaluasi usability untuk mengetahui permasalahan yang ada pada sistem dan supaya mencapai tujuan tertentu secara efektif, efisien, dan mencapai kepuasan user. Berdasarkan permasalahan tersebut, maka diangkatlah penelitian dengan judul Analisis Usability pada Website Universitas Brawijaya dengan Heuristic Evaluation (HE). HE adalah metode untuk mencari masalah usability dengan Nielsen's heuristic dengan melibatkan para ahli. Penelitian dimulai dengan melakukan pengumpulan data, pengujian website, dan analisis hasil heuristik dan uji preferensi user. Dengan berpedoman pada sekumpulan heuristik, para ahli mencari dan menilai usability pada website UB. Kemudian uji preferensi user dengan PSSUQ juga dilakukan untuk mengetahui respon user umum terhadap website UB, dan didapatkan hasil berupa perbandingan hasil analisis antara HE dengan uji preferensi user.

Concept map has been widely used as an interactive media to deliver contents in learning. Incorporating concept maps into collaborative learning could promote more interactive and meaningful learning environments. Furthermore, delivering concept maps in a digital form, such as in Kit-Build concept map, could improve learning interaction further. Collaborative learning with Kit-Build concept map has been shown to have positive effects on students' understanding. The way students compose their concept maps while discussing with others is presumed to affect their learning. However, supporting collaborative learning in an online setting is formidable to keep the interaction meaningful and fluid. This study proposed a new approach of real-time collaborative learning with Kit-Build concept map. This study also investigated how concept map recomposition with Kit-Build concept map could help students collaboratively learn EFL reading comprehension from a distance by comparing it with the traditional open-ended concept mapping approach. The learning effect and students' conversation during collaboration with the proposed online Kit-Build concept map system were investigated. Comparative analysis with a traditional collaborative concept mapping approach is also presented. The results suggested that collaborative learning with Kit-Build concept map yielded better outcomes and more meaningful discussion than the traditional open-end concept mapping.

Abstract-Mobile based culinary recommendation system has become critical topic in mobile application. Some methods presented in the literature propose the use of the AHP (Analytic Hierarchy Process), AHP TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) and fuzzy AHP for mobile based culinary recommendation system. However, there are no comparative studies of these three methods when applied to mobile based culinary recommendation system. Thus, this research presents a comparative analysis of these three methods in the context of culinary recommendation system in mobile environment. The comparison was made based on accuracy and time complexity because mobile application environment needs low time complexity. The results have shown that all of these methods are suitable for culinary recommendation system in mobile environment. Fuzzy AHP have the highest accuracy between all of these methods, it have 66,67 % accuracy. But, AHP TOPSIS shows the best performance in time complexity, with order of growth in quadratic class (n 2 ).

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