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"This book reports on a novel concept of mechanism transitions for the design of highly scalable and adaptive publish/subscribe systems. First, it introduces relevant mechanisms for location-based filtering and locality-aware dissemination of events based on a thorough review of the state-of-the-art. This is followed by a detailed description of the design of a transition-enabled publish/subscribe system that enables seamless switching between mechanisms during runtime. Lastly, the proposed concepts are evaluated within the challenging context of location-based mobile applications. The book assesses in depth the performance and cost of transition execution, highlighting the impact of the proposed state transfer mechanism and the potential of coexisting transition-enabled mechanisms."

"Tujuan dari penelitian ini adalah merancang sistem aplikasi pengukuran kinerja fungsi IT menggunakan IT Balanced Scorecard yang terintegrasi untuk mendukung strategi bisnis perusahaan yang berguna untuk memudahkan pemantauan dan penilaian kinerja fungsi IT pada perusahaan dan diharapkan ada proses perbaikan dan peningkatan kinerja yang cepat apabila ada kekurangan dan kesalahan dalam proses kerja yang dijalankan. Perusahaan bergerak dalam bidang Teknologi Informasi sehingga fungsi IT mempunyai peran utama dan penting bagi proses bisnis perusahaan maka dibutuhkan suatu pengukuran untuk menilai dan memantau keberhasilan kinerja IT dalam menunjang bisnis perusahaan. Metode penelitian dilakukan dengan studi kepustakaan, wawancara, survey lapangan, dan pengumpulan data perusahaan. Sedangkan metodologi perancangan sistem aplikasi IT Balanced Scorecard menggunakan FAST (Framework for the Application System Thinking). Sistem Aplikasi IT Balanced Scorecard merupakan sistem pengukuran kinerja yang diusulkan dengan tujuan mempermudah pemantauan dan menghasilkan informasi kinerja fungsi IT. Dengan dashboard IT Balanced Scorecard yang berfungsi sebagai alat diagnostic control system untuk melakukan pemantauan kinerja dan evaluasi kinerja fungsi IT, dengan dashboard sistem aplikasi IT Balanced Scorecard dapat memberikan gambaran mengenai kondisi hasil pencapaian kerja fungsi IT.

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The purpose of this study is to design a system of performance measurement application of IT functions using an integrated IT Balanced Scorecard to support the company's business strategy that is useful to facilitate the monitoring and assessment of the performance of the IT function in the company and is expected to be a process improvement and rapid performance improvement of any deficiencies and errors in the work process run. The Company is engaged in the field of Information Technology so that the IT function has a major and important role for the company's business processes we need a measure to assess and monitor the success of the performance of IT in supporting the company's business. Methods of research conducted with literature studies, interviews, field surveys and data collection company. While the methodology design application system IT Balanced Scorecard using the FAST (Framework for the Application System Thinking). Application System IT balanced scorecard is a performance measurement system is proposed in order to facilitate monitoring and yield performance information IT functions. With the IT balanced scorecard dashboard serves as a diagnostic tool control system for performance monitoring and evaluation of the performance of the IT function, with dashboard IT balanced scorecard application systems can provide a picture of the working conditions of the results of the achievement of IT function."

"Di masa pandemi seperti saat ini, volume transaksi melalui aplikasi m-Banking di Indonesia memiliki potensi untuk meningkat. Terdapat aplikasi m-Banking dengan jumlah target pasar terbesar di Indonesia, yaitu BRImo, Livin' by Mandiri, dan BCA Mobile. Untuk mengantisipasi peningkatan jumlah pengguna dan frekuensi penggunaan, diperlukan analisis dan studi mendalam mengenai pengalaman pengguna ketika menggunakan aplikasi m-Banking. Penelitian ini bertujuan untuk mengevaluasi desain antarmuka dan usability dari tiga aplikasi m-Banking di Indonesia, yaitu BRImo, Livin' by Mandiri, dan BCA Mobile. Penelitian dilakukan dengan metodologi User-Centered Design. Evaluasi dilakukan dengan menggabungkan data kuantitatif dari penilaian pengguna dengan kuesioner System Usability Scale dan data kualitatif dari usability testing serta pendapat pengguna yang dikumpulkan dengan kuesioner daring dan wawancara kontekstual. Melalui evaluasi, ditemukan permasalahan pada lima fitur utama aplikasi m-Banking, yaitu pengecekan saldo, transfer uang, pengisian e-Wallet, pembayaran tagihan, dan cek mutasi. Masalah-masalah ini dikembangkan solusinya berdasarkan pemetaan dengan Shneiderman’s Eight Golden Rules of Interface Design. Solusi desain dikembangkan menjadi high-fidelity prototype dan dievaluasi kembali dengan metode usability testing, wawancara kontekstual, dan kuesioner System Usability Scale. Penelitian ini membuktikan bahwa kesesuaian aplikasi dengan Shneiderman's Eight Golden Rules of Interface Design meningkatkan penilaian pengguna terhadap aplikasi. Desain alternatif aplikasi pada penelitian ini dapat dijadikan referensi untuk meningkatkan usability dari aplikasi m-Banking.

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During the current pandemic situation nowadays, the volume of transactions on m-Banking applications in Indonesia has the potential to increase in number. There are three m-Banking applications with the largest number of target markets in Indonesia, which are BRImo, Livin' by Mandiri, and BCA Mobile. To anticipate the increase in the number of users and the frequency of use, in-depth analysis and study of user experience of m-Banking applications is necessary. This study aims to evaluate the interface design and usability of three m-Banking applications in Indonesia, which are BRImo, Livin' by Mandiri, and BCA Mobile. The research was conducted using User-Centered Design methodology. The evaluation was carried out by combining quantitative data from user evaluation by System Usability Scale questionnaire and qualitative data from usability testing and user reviews collected with online questionnaires and contextual interviews. Through the evaluation, problems were found in the five main features of the m-Banking application, which are balances checking, money transfer, e-Wallet top-up, bill payment, and transaction record checking. Design solutions for these problems were developed based on mapping with Shneiderman's Eight Golden Rules of Interface Design. Design solutions were made into high-fidelity prototype and re-evaluated with usability testing, contextual interviews, and System Usability Scale questionnaires. This research proves that the conformity of application with Shneiderman's Eight Golden Rules of Interface Design increases the user's evaluation score of the application. The alternative design of the application in this study is hoped to be used as a reference to improve the usability of the m-Banking application."

"The problem of the unknown component : theory and applications addresses the issue of designing a component that, combined with a known part of a system, conforms to an overall specification. The authors tackle this problem by solving abstract equations over a language. The most general solutions are studied when both synchronous and parallel composition operators are used. The abstract equations are specialized to languages associated with important classes of automata used for modeling systems. The book is a blend of theory and practice, which includes a description of a software package with applications to sequential synthesis of finite state machines. Specific topologies interconnecting the components, exact and heuristic techniques, and optimization scenarios are studied. Finally the scope is enlarged to domains like testing, supervisory control, game theory and synthesis for special omega languages. The authors present original results of the authors along with an overview of existing ones."

"Permasalahan dalam kegiatan presensi mahasiswa cukup sering ditemukan di lingkungan UI seperti menitip presensi ke teman, antrian presensi yang panjang, dan perihal mahasiswa yang lupa untuk melakukan presensi. Tujuan penelitian ini adalah merancang antarmuka aplikasi pencatatan kehadiran dengan pendekatan user-centered design. Proses dimulai dengan melakukan analisis kebutuhan pengguna dengan melakukan evaluasi kualitatif dari pengguna aplikasi serupa dengan kuesioner online sehingga menghasilkan persona dan user requirements. Proses perancangan desain dilakukan dengan mengembangkan prototipe berdasarkan studi literatur, prinsip desain interaksi, dan user requirements. Proses dilanjutkan dengan melakukan evaluasi desain. Evaluasi desain kuantitatif dilakukan dengan SUS dan UEQ untuk menyatakan kelayakan aplikasi, sedangkan evaluasi desain kualitatif dilakukan dengan usability testing untuk mendapatkan feedback langsung dari pengguna yang akan digunakan untuk pengembangan kedepannya. Rancangan antarmuka aplikasi pencatatan kehadiran berhasil dibuat dengan nilai akhir SUS 72.84 yang termasuk kategori good dan nilai akhir UEQ di atas 1.00 untuk semua aspek pengalaman pengguna.

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Some problems in the student attendance system are found in the University of Indonesia, such as leaving attendance to friends, long queues, and students forgetting to attend. The purpose of this study was to design an attendance recording application interface with a user-centered design approach. The process begins with analyzing user needs by conducting a qualitative evaluation of similar applications with an online questionnaire resulting in personas and user requirements. The design process is carried out by developing a prototype based on literature studies, interaction design principles, and user requirements. The process is continued by conducting a design evaluation. Quantitative design evaluation is done with SUS and UEQ to state the feasibility of the application, while qualitative design evaluation is carried out with usability testing to get direct feedback from users that will be used for future development. The design of the attendance recording application interface has been successfully created with a final score of SUS 72.84 which is in the good category and a final UEQ score above 1.00 for all aspects of the user experience, which means it is good enough but needs further development."

"Tingginya angka kematian ibu (AKI) di Indonesia menimbulkan berbagai inisiatif dari pemerintah Indonesia salah satunya adalah buku Kesehatan Ibu dan Anak (KIA), yang kemudian diluncurkan bentuk digitalnya, yaitu aplikasi mobile KIA (mKIA). Namun, aplikasi ini mendapat penilaian buruk pada platform distribusi aplikasi, bahkan beberapa fiturnya juga tidak dapat berfungsi dengan baik. Oleh karena itu, penting bagi perancang aplikasi untuk memastikan pengguna aplikasi mendapatkan pengalaman yang terbaik untuk meningkatkan daya guna serta memaksimalkan manfaat yang dapat dirasakan ibu hamil. Pada penelitian aplikasi kesehatan maternal terdahulu dan aplikasi KIA saat ini, user interface (UI) dan user experience (UX) tidak dikedepankan. Padahal kedua komponen tersebut merupakan kunci untuk membangun desain aplikasi yang memumpuni semua aspek usability. Oleh karena itu, penelitian ini bertujuan untuk merancang ulang desain antarmuka aplikasi mKIA menggunakan metodologi User- Centered Design (UCD) dengan tiga iterasi serta menerapkan kaidah 8 Golden Rules milik Shneiderman. Partisipan yang terlibat pada proses pengumpulan data dan evaluasi adalah tiga petugas dan pakar kesehatan maternal, serta dua belas ibu hamil di Pulau Jawa. Evaluasi pada iterasi pertama menghasilkan rancangan berupa prototipe low-fidelity, sedangkan pada iterasi kedua dan ketiga akan dihasilkan rancangan berupa prototipe high-fidelity yang sudah disempurnakan. Prototipe yang dihasilkan memiliki lima fitur utama, yaitu pencatatan, informasi dan edukasi, reminder, tracker TTD, dan monitoring perkembangan janin. Evaluasi pada iterasi pertama menggunakan wawancara untuk memvalidasi wireframe, sedangkan iterasi kedua dan ketiga menggunakan Usability Testing (UT) dan System Usability Scale (SUS). Pada iterasi kedua, skor final SUS yang diperoleh adalah 71.2 atau ‘Good’, sedangkan pada iterasi ketiga skor final SUS adalah 85.4 atau ‘Excellent’. Penelitian ini diharapkan dapat memberikan kontribusi ilmiah terkait perancangan sistem dan aplikasi pendukung antenatal care dan berperan dalam mengatasi angka kematian ibu (AKI) khususnya di bidang teknologi. Selain itu, penelitian ini diharapkan dapat berkontribusi sebagai rujukan rancangan desain antarmuka aplikasi kesehatan maternal, terutama pada aplikasi KIA, serta perbaikan dan pengembangan aplikasi kesehatan kehamilan menggunakan metodologi UCD.

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The high maternal mortality rate (MMR) in Indonesia has led to various initiatives from the Indonesian government, one of which is the Maternal and Child Health (MCH) book, which later launched its digital form, namely the MCH mobile application (mKIA). However, this application received bad ratings on the application distribution platforms, and even some of its features could not function properly. Therefore, it is important for application designers to ensure users get the best experience to increase usability and maximize the benefits that pregnant women can receive. The previous research on maternal health applications and current MCH applications, the user interface (UI) and user experience (UX) were not prioritized. Even though these two components are the key to building an application design that is capable of all aspects of usability. Therefore, this study aims to redesign the MCH application interface design using the User-Centered Design (UCD) methodology with three iterations and applying the Eight Golden Rules created by Shneiderman. The participants involved in the data collection and evaluation process were three health workers and experts, as well as fifteen pregnant women on the island of Java. The evaluation in the first iteration resulted in a design in the form of a low-fidelity prototype and in the second and third iterations a design in the form of a refined clickable high-fidelity prototype was produced. The resulting prototype has main features including create notes, information and education, reminders, blood supplement tablets tracker, and monitoring of fetal development. The evaluation in the first iteration uses interviews by validating wireframes, the second and third iterations use Usability Testing (UT) and the System Usability Scale (SUS). In the second iteration, the final SUS score obtained was 71.2 or ‘Good’, while in the third iteration the final SUS score was 85.4 or ‘Excellent’. This research is expected to provide a scientific contribution related to the design of systems and application to support antenatal care and play a role in overcoming MMR, especially in the field of technology. In addition, this research is expected to contribute as a reference for designing maternal health application interfaces, especially for MCH applications, as well as improving and developing pregnancy health applications using the UCD methodology."

"Tingginya jumlah kendaraan bermotor di Indonesia memiliki dampak kepada kualitas udara. Aplikasi Mahoni merupakan upaya solusi dari permasalahan tersebut dengan membawa konsep kota cerdas. Penulis melakukan pengembangan arsitektur microservice yang melayani fitur pada aplikasi Mahoni yaitu servis kualitas udara, perjalanan, dan penukaran poin menjadi kupon sesuai dengan kebutuhan pengguna. Aplikasi Mahoni dikembangkan dengan menggunakan arsitektur event-driven agar dapat mencatat beragam data yang berasal dari sensor udara dan aktivitas pengguna secara real-time. Digunakan message broker untuk mendapatkan throughput yang tinggi dan mempermudah integrasi dengan komponen big data yang memerlukan data stream untuk melakukan stream processing dan real-time analytics melalui change data capture. Data stream diolah menjadi keluaran yang dibutuhkan seperti visualisasi data menggunakan dashboard. Untuk mencapai hal tersebut, arsitektur Kappa diimplementasikan untuk membangun arsitektur big data yang scalable dan reliable. Keterhubungan implementasi keseluruhan arsitektur pada penelitian ini diuji dengan melakukan end-to-end testing. Hasil pengujian menunjukkan bahwa keseluruhan komponen sistem aplikasi Mahoni terhubung dengan baik dalam memenuhi kebutuhan pengguna. Komponen arsitektur event-driven terbukti dapat mengatasi data stream dengan throughput tinggi dan bersifat loosely-coupled sehingga integrasi komponen baru pada sistem lebih mudah. Komponen arsitektur big data juga terbukti dapat mengatasi pertumbuhan data dengan melakukan scaling sehingga menghasilkan sistem yang reliable.

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The high number of motorized vehicles in Indonesia is causing air quality issues. To combat this problem, the Mahoni application introduces a smart city concept. It employs a microservice architecture, offering features such as air quality monitoring, travel assistance, and point redemption for coupons according to user needs. Event-driven architecture is utilized for real-time data collection from air sensors and user interactions. Message broker is used to get high throughput and facilitate integration with big data components that require data streams to perform stream processing and real-time analytics through change data capture. Stream data is processed into the required output such as data visualization using dashboards. To achieve this, Kappa architecture is implemented to build a scalable and reliable big data architecture. The connectedness of the implementation of the entire architecture in this study was tested by conducting end-to-end testing. The results of the test show that all components of the Mahoni application system are well connected in meeting user needs. The event-driven architecture component is proven to cope with high-throughput data streams and is loosely-coupled, allowing easy integration of new components. The big data architecture component is also proven to accommodate data growth by scaling, ensuring a reliable system."

"Tingginya jumlah kendaraan bermotor di Indonesia memiliki dampak kepada kualitas udara. Aplikasi Mahoni merupakan upaya solusi dari permasalahan tersebut dengan membawa konsep kota cerdas. Penulis melakukan pengembangan arsitektur microservice yang melayani fitur pada aplikasi Mahoni yaitu servis kualitas udara, perjalanan, dan penukaran poin menjadi kupon sesuai dengan kebutuhan pengguna. Aplikasi Mahoni dikembangkan dengan menggunakan arsitektur event-driven agar dapat mencatat beragam data yang berasal dari sensor udara dan aktivitas pengguna secara real-time. Digunakan message broker untuk mendapatkan throughput yang tinggi dan mempermudah integrasi dengan komponen big data yang memerlukan data stream untuk melakukan stream processing dan real-time analytics melalui change data capture. Data stream diolah menjadi keluaran yang dibutuhkan seperti visualisasi data menggunakan dashboard. Untuk mencapai hal tersebut, arsitektur Kappa diimplementasikan untuk membangun arsitektur big data yang scalable dan reliable. Keterhubungan implementasi keseluruhan arsitektur pada penelitian ini diuji dengan melakukan end-to-end testing. Hasil pengujian menunjukkan bahwa keseluruhan komponen sistem aplikasi Mahoni terhubung dengan baik dalam memenuhi kebutuhan pengguna. Komponen arsitektur event-driven terbukti dapat mengatasi data stream dengan throughput tinggi dan bersifat loosely-coupled sehingga integrasi komponen baru pada sistem lebih mudah. Komponen arsitektur big data juga terbukti dapat mengatasi pertumbuhan data dengan melakukan scaling sehingga menghasilkan sistem yang reliable.

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The high number of motorized vehicles in Indonesia is causing air quality issues. To combat this problem, the Mahoni application introduces a smart city concept. It employs a microservice architecture, offering features such as air quality monitoring, travel assistance, and point redemption for coupons according to user needs. Event-driven architecture is utilized for real-time data collection from air sensors and user interactions. Message broker is used to get high throughput and facilitate integration with big data components that require data streams to perform stream processing and real-time analytics through change data capture. Stream data is processed into the required output such as data visualization using dashboards. To achieve this, Kappa architecture is implemented to build a scalable and reliable big data architecture. The connectedness of the implementation of the entire architecture in this study was tested by conducting end-to-end testing. The results of the test show that all components of the Mahoni application system are well connected in meeting user needs. The event-driven architecture component is proven to cope with high-throughput data streams and is loosely-coupled, allowing easy integration of new components. The big data architecture component is also proven to accommodate data growth by scaling, ensuring a reliable system."

"PT Halal Network International (HNI) merupakan salah satu perusahaan yang menyediakan produk-produk herbal halal dan berkiprah sudah lebih dari 10 tahun. Proses bisnis perusahaan ini adalah distribusi produknya melalui metode Multi-Level Marketing (MLM). Untuk memenuhi kebutuhan pengelolaan penjualan agen stok, HNI mengembangkan aplikasi HNI Integrated System (HSIS) yang dapat diakses di platform website maupun mobile. Analisis permasalahan diperoleh dari tiga sumber: wawancara dengan Direktur TI HNI, wawancara dengan agen stok HNI, dan analisis ulasan Google Play Store. Jumlah unduhan aplikasi di Google Play Store dan angka transaksi di HSIS mobile menunjukkan penurunan beberapa tahun terakhir. Hasil analisis ulasan sentimen negatif di Play Store juga menunjukkan sebanyak 44,6% termasuk dalam kategori UI/UX. Selain itu, agen stok HNI yang diwawancarai mengaku jarang menggunakan HSIS mobile dibandingkan website karena fiturnya yang lebih rumit dan panjang. Keterkaitan erat antara UI/UX dengan usability menunjukkan pentingnya dilakukan evaluasi usability aplikasi HSIS. Tujuan penelitian ini adalah melakukan evaluasi usability dan merancang rekomendasi alternatif desain antarmuka aplikasi HSIS Mobile HNI menggunakan proses User-centered Design (UCD). Penelitian ini menerapkan Kuesioner System Usability Scale (SUS), Open-ended Question (OEQ), dan Usability Testing (UT) sebagai instrumen penelitian. Terdapat 81 responden yang terlibat dalam mengisi kuesioner SUS dan OEQ. Selanjutnya dilakukan UT Fase 1 yang melibatkan 14 responden. Sebagian responden diambil dari responden kuesioner survei, sedangkan 7 lainnya merupakan pengguna baru HSIS. Setelah UT, dilakukan wawancara dengan mengajukan OEQ. Hasil dari ketiga proses ini diolah dan dikelompokkan, lalu solusi desainnya dipetakan berdasarkan prinsip desain Nielsen’s Ten Usability Heuristic of Interface Design dan Shneiderman’s Eight Golden Rules of Interface Design. Terdapat empat belas solusi desain yang direkomendasikan untuk perbaikan beberapa halaman seperti Homepage, Daftar Agen Stok, Edit Transaksi, Logout, dan halaman lainnya. Empat belas solusi desain alternatif ini kembali diujikan di UT Fase 2 pada 14 responden yang sama dengan UT Fase 1. Hasil UT Fase 2 menunjukkan penurunan jumlah isu usability yang signifikan dibandingkan UT Fase 1. Hal ini membuktikan perbaikan desain antarmuka aplikasi HSIS mampu memberikan peningkatan yang positif pada usability dan pengalaman pengguna aplikasi HSIS mobile.

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PT Halal Network International (HNI) is a company that provides halal herbal products and has been in operation for over 10 years. The company's business model involves distributing its products through a Multi-Level Marketing method. To meet the needs of managing stockist sales, HNI developed the HNI Integrated System (HSIS) application, which can be accessed on both website and mobile platforms. Problem analysis was derived from three sources: interviews with the IT Director of HNI, interviews with HNI stockists, and analysis of Play Store reviews. The number of application downloads on the Play Store and the transaction rate on HSIS mobile have shown a decline in recent years. Sentiment analysis of negative reviews on the Play Store also indicated that 44.6% fell into the UI/UX category. Additionally, interviewed HNI stockists admitted to rarely using HSIS mobile compared to the website due to its more complicated and lengthy features. The close relation between UI/UX and usability indicates the importance of conducting a usability evaluation of the HSIS application. The purpose of this research is to conduct a usability evaluation and design alternative interface design recommendations for the HSIS Mobile HNI application using the User-centered Design (UCD) process. This research applies the System Usability Scale (SUS) Questionnaire, Open-ended Question (OEQ), and Usability Testing (UT) as research instruments. There were 81 respondents involved in filling out the SUS and OEQ questionnaires. Furthermore, UT Phase 1 was conducted involving 14 respondents. Some respondents were drawn from the survey questionnaire respondents, while the other 7 were new HSIS users. After the UT, an interview was conducted by submitting an OEQ. The results of these three processes were processed and categorized, then the design solutions were mapped based on Nielsen's Ten Usability Heuristic of Interface Design and Shneiderman's Eight Golden Rules of Interface Design. There are fourteen design solutions recommended to improve several pages such as Homepage, Agent Stock List, Edit Transaction, Logout, and other pages. These fourteen alternative design solutions were tested again in UT Phase 2 to the same 14 respondents as UT Phase 1. The results of UT Phase 2 showed a significant decrease in the number of usability issues compared to UT Phase 1. This proves that improvements to the HSIS application interface design can provide a positive improvement in the usability and user experience of the HSIS mobile application."