Journal of Systems Integration最新文献

{"title":"Evaluasi Usability pada Aplikasi Mobile ACC.ONE menggunakan System Usability Scale (SUS) dan Usability Testing","authors":"Veni Manik, Clara Hetty Primasari, Yohanes Priadi Wibisono, Aloysius Bagas Pradipta Irianto","doi":"10.34128/jsi.v7i1.286","DOIUrl":"https://doi.org/10.34128/jsi.v7i1.286","url":null,"abstract":"Perusahaan pembiayaan kendaraan mobil saat ini semakin banyak dan berkembang begitu pesat. Setiap perusahaan berusaha untuk menarik perhatian pelanggan dengan berbagai cara, terutama peningkatan teknologi untuk mendukung dan memudahkan proses kegiatan pembiayaan mobil. Perusahaan Astra Credit Company memanfaatkan teknologi dengan menyediakan aplikasi mobile acc.one yang dapat digunakan oleh pelanggan untuk membantu segala kegiatan proses pembiayaan mobil di Perusahaan ACC. Namun aplikasi ini terdapat beberapa masalah yang dapat diketahui dari ulasan pengguna di play store seperti aplikasi tiba-tiba error, aplikasi tidak dapat dibuka, fitur tidak berfungsi dengan semestinya, dll. Sehingga dilakukan pengujian aplikasi untuk mengetahui tingkat usability aplikasi dengan menggunakan metode system usability scale dan usability testing untuk mengetahui pengalaman pengguna. Hasil yang diperoleh tingkat usability aplikasi dengan tingkat kemudahan sebesar 73,33% yang masuk dalam kategori buruk, tingkat kecepatan pengguna sebesar 0,0467 goals/sec yang termasuk kategori normal, tingkat kesalahan pengguna sebesar 0,1230 total defect yang masuk dalam kategori kecil, dan tingkat kepuasan pengguna menggunakan kuesioner SUS memperoleh rerata SUS sebesar 54,45945946 yang artinya tingkat kepuasan pengguna rendah terhadap aplikasi berdasarkan penentuan nilai SUS yaitu Acceptability atau tingkat penerimaan penggunaan masuk dalam kategori marginal low, Grade Scale atau tingkat grade skala masuk dalam kategori F dan Adjective Rating masuk dalam kategori OK. Selain itu, pada SUS skor percentile rank masuk kedalam grade D.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69806769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tail Risk Hedging: Contrasting Put and Trend Strategies","authors":"A. Ilmanen, Ashwin K Thapar, Harsha Tummala, Daniel Villalon","doi":"10.52354/JSI.1.1.VI","DOIUrl":"https://doi.org/10.52354/JSI.1.1.VI","url":null,"abstract":"We summarize key research findings on risk-mitigating strategies and offer\u0000an overview of the strengths and weaknesses of regular index put buying\u0000(“Put”) and multi-asset trend following (“Trend”) as tail hedges. The two\u0000biggest questions we address are: (1) What is the long-term average\u0000return or cost, and (2) How reliable and efficient is the hedge in equity\u0000market tail events? We present empirical answers and discuss the\u0000economic rationale for each question. The common view that Put costs\u0000more but is a more effective tail hedge contains a kernel of truth but does\u0000not capture the full story. We will give a more nuanced picture, including\u0000practicality for investors, but in the end show the cost advantage favors\u0000Trend over Put.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44619844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Friend of Your Trend","authors":"W. Lee","doi":"10.52354/JSI.1.1.III","DOIUrl":"https://doi.org/10.52354/JSI.1.1.III","url":null,"abstract":"Standard performance attribution to beta and alpha is not simple without full transparency into the investment process. This article develops an analytical framework to shed light on ex-ante stylized characteristics of a simple trend following strategy. Our analytical results show that rewards from the trend following strategy embed different degrees of underlying asset beta, which are determined by the asset’s return-to-volatility ratio, in addition to the trending behaviors that the strategy is built to harvest. We compare the results to ex-post realized returns-based style analysis of a CTA index. We discuss practical implications of our results with respect to fees and allocations to trend following strategies.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44214417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Algorithmic Models of Investor Behavior","authors":"A. Lo, Alexander Remerov","doi":"10.52354/JSI.1.1.II","DOIUrl":"https://doi.org/10.52354/JSI.1.1.II","url":null,"abstract":"We propose a heuristic approach to modeling investor behavior by simulating combinations of simpler systematic investment strategies associated with well-known behavioral biases—in functional forms motivated by an extensive review of the behavioral finance literature—using parameters calibrated from historical data. We compute the investment performance of these heuristics individually and in pairwise combinations using both simulated and historical asset-class returns. The mean-reversion or momentum nature of a heuristic can often explain its effect on performance, depending on whether asset returns are consistent with such dynamics. These algorithms show that seemingly irrational investor behavior may, in fact, have been shaped by evolutionary forces and can be effective in certain environments and maladaptive in others.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41966900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementasi Metode Klasifikasi Naive Bayes Pada Sistem Analisis Opini Pengguna Twitter Berbasis Web","authors":"Apif Supriadi, Fatmasari","doi":"10.51998/JSI.V10I1.356","DOIUrl":"https://doi.org/10.51998/JSI.V10I1.356","url":null,"abstract":"Abstract— Development of social media which is the result of technological development is an inseparable part of people's lives. Social media is a place where ordinary people express their feelings and opinions about something that concerns them. Inknowing the direction of public sentiment, surveys are usually done online or offline, this sentiment analysis system will facilitate and speed up the process of knowing the direction of public sentiment, in the case of research. This uses data from Twitter social media called tweets or tweets, web-based sentiment analysis system that will classify tweets into 3 (three) types of sentiments, namely positive, neutral and negative, then make a percentage to make it easier to see the direction of public sentiment. In classifying this system uses the Naive Bayes Classifier method and displays it in a web interface with the PHP programming language and uses the Application Programming Interface (API) to get data from Twitter. Intisari — Saat ini perkembangan media sosial yang merupakan hasil dari perkembangan teknologi menjadi bagian tak terpisahkan dari kehidupan masyarakat. Media sosial menjadi tempat masyarakat biasa mengutarakan berbagai perasaan dan opininya tentang suatu hal yang jadi perhatian mereka, dalam mengetahui arah sentimen masyarakat biasanya dilakukan survei baik secara online atau offline, sistem analisis sentimen ini akan memudahkan dan mempercepat proses mengetahui arah sentimen publik, dalam kasus penelitian ini menggunakan data dari media sosial Twitter yang disebut dengan tweets atau cuitan, sistem analisis sentimen berbasis web yang akan mengklasifikasikan cuitan kedalam 3 (tiga) jenis sentimen yaitu positif, netral dan negatif lalu melakukan persentasenya agar mempermudah melihat arah sentimen publik. Dalam melakukan klasifikasinya sistem ini menggunakan metode Naive Bayes Classifier dan menampilkannya dalam antarmuka web dengan bahasa pemrograman PHP dan menggunakan Application Programming Interface (API) dalam mendapatkan data dari Twitter.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48602701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating IT Governance at Network Access Provider on COBIT 5 Domain EDM","authors":"H. Hartono","doi":"10.20470/JSI.V11I2.397","DOIUrl":"https://doi.org/10.20470/JSI.V11I2.397","url":null,"abstract":"Network Access Provider is a company engaged in the field of ICT (Information Communication Technology) where the main activities carried out in business are the provision of internet services to the Internet Service Provider (ISP), network integrators, content providers, and all support solutions in fields related to the internet and networks. This research was conducted to ensure that operations at Network Access Provider have been running and supports the goals optimally. The focus of this research is to help companies create optimal value from IT with a balance between realizing benefits and optimizing usage levels and resources. Researchers conduct library studies, observations, interviews, and conduct research analysis methods to get the actual value of the capability level of information systems and factors that influence information systems. Researchers use the COBIT 5 framework in the Evaluate, Direct, and Monitor (EDM) domains to conduct research on governance that works together around the world. COBIT 5 is an approved work or framework that is often used by auditors, especially in the information technology auditors section. COBIT 5 can be used as a tool to create information technology governance in a company. The results of this research contain information about IS deficiencies and the renewal of solutions for future improvements to the company.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46204686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyberbullying in Higher and Tertiary Education institutions in Zimbabwe: Forms, Extent, Effects and Contributing factors","authors":"Mavellas Sibanda","doi":"10.20470/JSI.V11I2.387","DOIUrl":"https://doi.org/10.20470/JSI.V11I2.387","url":null,"abstract":"This research was an investigative enquiry into the forms, extent, effects and contributing factors of cyberbullying in Higher and Tertiary Education institutions in Zimbabwe. The study used one such institution as case study. A survey was conducted on a sample of 380 undergraduate students (n=380) out of a total of 3800 student population (N=3800) in the institution. Interviews were also conducted on 12 volunteers in order to obtain additional information from the participants, especially on contributing factors. The Findings indicate that cyberbullying is very common in these institutions coming in the form of phone calls, emails, text messages, video clips and online chats. The extent of Cyberbullying is very high, with 75% of respondents admitting to have received a threatening message in campus, while 83% confirmed to have seen offensive messages while socializing with friends online. Key effects were identified as affecting students in their relationships on and off campus and mental health problems. Main contributing factors to cyberbullying were identified as gender issues, cultural/ ethnic differences, general dislike, and some taking it as an online game (fun).","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49143255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategi Kota Bekasi dan Kota Jambi dalam Pengembangan Inovasi Digital dan Kreativitas Masyarakat","authors":"I. Firdaus, Arnidiana Arnidiana","doi":"10.52000/JSI.V1I1.4","DOIUrl":"https://doi.org/10.52000/JSI.V1I1.4","url":null,"abstract":"Perkembangan teknologi informasi dan komunikasi ini juga sangat menguntungkan dibandingkan dengan cara-cara manual atau tradisional. Hal itu dibuktikan dengan semakin cepatnya masyarakat dalam mendapatkan informasi melalui berbagai teknologi informasi dan komunikasi yang semakin baik.Penelitian ini bertujuan untuk menganalisis inovasi yang dilakukan oleh Kabupaten/Kota dalam upaya memanfaatkan perkembangan teknologi dalam meningkatkan efisiensi aktivitas yang dilakukan pada setiap Kota/Kabupaten. Penelitian ini menggunakan pendekatan Kualititatif. Dengan metode kualitatif dan pendekatan deskriptif diharapkan mampu menggali data secara lebih mendalam sehingga dapat diidentifikasi sejumlah inovasi pelayanan publik yang telah dilakukan oleh Kota Bekasi dan Kota Jambi. Populasi dalam penelitian ini adalah Kabupaten/Kota yang telah melakukan inovasi di daerahnya, sedangkan sampel dalam penelitian ini adalah inovasi yang dilakukan oleh Kota Bekasi dan Kota Jambi dalam upaya memanfaatkan teknologi informasi dan komunikasi terbaru yang bersifat digital. Hasil dari adanya inovasi PPDB Online yaitu proses penerimaan peserta didik baru berjalan lancar, serta terlaksananya pengelolaan beasiswa dan PPDB online. Kemudian, hasil dari adanya beasiswa online yaitu proses pemberian bantuan beasiswa prestasi disalurkan sesuai Quota yang ditetapkan. Sedangkan hasil dari adanya inovasi Telepon Sahabat Perempuan Dan Anak yaitu layanan pengaduan melalui Psikolog dimana Psikolog yang melayani Tesa siap melayani 24 jam. Dimana, fungsi pelayanan melalui psikolog adalah Layanan Telekonseling Bagi Perempuan dan Anak, Layanan Penjangkauan, dan juga Layanan Darurat","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45755043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inovasi Teknologi dalam Perubahan Pelayanan Publik Perkotaan","authors":"Ranty Purnamasari, Muhammad Riksa Praba Haskara","doi":"10.52000/JSI.V1I1.8","DOIUrl":"https://doi.org/10.52000/JSI.V1I1.8","url":null,"abstract":"Inovasi dipandang sebagai kebutuhan karena dapat mengatasi masalah patologi birokrasi, meningkatkan kualitas pelayanan publik, memaksimalkan potensi aparatur, serta mengembalikan kepercayaan publik. Inovasi juga dipengaruhi oleh perkembangan teknologi informasi yang pesat. Penelitian ini bertujuan untuk melakukan analisis inovasi yang dilakukan oleh Kota Bekasi dan Kabupaten Gresik yang memiliki tujuan untuk mewujudkan suatu ide atau pemikiran kreatif, yang berkaitan dengan teknologi sebagai terobosan untuk  mempermudah  kinerja. Penelitian ini menggunakan pendekatan kualitatif dengan tipe penelitian deskriptif yang bertujuan untuk mengetahui lebih mendalam fakta-fakta mengenai inovasi. Populasi dalam penelitian ini adalah kota yang pernah melakukan inovasi yang berkaitan dengan pelayanan publik, sedangkan sampel dalam penelitian ini adalah inovasi yang dilakukan oleh Kota Bekasi dan Kabupaten Gresik. Penelitian ini menunjukkan bahwa Kota Bekasi dan Kabupaten Gresik berhasil untuk menciptakan inovasi pada bidang pelayanan publik, dimana pada kedua kota ini telah menciptakan suatu ide atau pemikiran kreatif, yang berkaitan dengan teknologi sebagai terobosan untuk  mempermudah  kinerja. Hasil dari adanya inovasi Layanan SIAP PPDB Online di Kota Bekasi, yaitu diantaranya  Tanpa Instalasi & Berbasis Cloud, Multi Platform & Multi Akses, Responsive Design, Multi Model Alur Pendaftaran, Multi Jalur Seleksi, Real Time Process, sehingga dapat mengelola data calon siswa secara otomatis dan langsung setiap waktu mulai dari proses pendaftaran, seleksi hingga pengumuman hasil. Sedangkan, hasil dari adanya Aplikasi e-Planning di Kabupaten Gresik mempunyai tujuan untuk menerapkan perencanaan menggunakan teknologi informasi berbasis Web yang terintegrasi dan user friendly, menyelaraskan/ mengintegrasikan perencanaan strategis jangka menengah ke dalam perencanaan tahunan, memetakan usulan program dan kegiatan dari DPRD, Unsur Pimpinan dan dokumen perencanaan yang telah ditetapkan, menyusun rencana kerja anggaran dengan cepat dan tepat, serta mengintegrasikan perencanaan, pelaksanaan anggaran, sampai dengan monitoring dan evaluasi.","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48785547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Inovasi dalam Upaya Mempermudah Capaian Kinerja dan Data Potensi Kinerja Daerah Perkotaan","authors":"Wendrian Fadli, Muhammad Ro'uuf Fadhillah","doi":"10.52000/JSI.V1I1.9","DOIUrl":"https://doi.org/10.52000/JSI.V1I1.9","url":null,"abstract":"Since 2009, Indonesia has had its own laws and regulations as a standard for services to the community, so on July 18 2009 Indonesia passed Law No. 25 of 2009 on Public Services. This research uses a descriptive qualitative method that describes an objective state or certain event based on visible facts or as it should be, which is then accompanied by general conclusions based on these historical facts. The population in this study are cities that have made innovations in their regions, while the samples in this study are innovations made by Bekasi City and South Tangerang City which aim to analyze innovation in an effort to facilitate performance achievement and performance potential data. The results of this study are proven that as an important actor, the Regional Government according to its authority is expected to be able to produce appropriate decisions and actions to solve problems and meet the needs of the people in their regions. In line with this, we realize that serious efforts are needed to raise the quality of local government decisions and actions to be more effective and efficient through innovative breakthroughs. The results of E-Sipeng Kesbangpol's Innovation (Information Technology-Based Activity Implementation Control System and Performance Achievement of KESBANGPOL Agency) in Bekasi City in the short term, one of which is the formation of an effective team. Meanwhile, the innovation results that can be felt with the SIMPUS Innovation (Puskesmas Management Information System) in South Tangerang City, one of which is work effectiveness: Accelerating the process of health services to the community (eg registration from 7 minutes manually to 1 minute).","PeriodicalId":30123,"journal":{"name":"Journal of Systems Integration","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43041014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}