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All Journal MEDIA ELEKTRIKA Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Rotasi J@TI (TEKNIK INDUSTRI) JURNAL SISTEM INFORMASI BISNIS JURNAL TEKNIK MESIN Elkom: Jurnal Elektronika dan Komputer Rekayasa Mesin Indonesian Journal of Electrical Engineering and Computer Science Journal of Biomedical Science and Bioengineering Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Toni Prahasto
Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro, Jl. Prof. Soedarto, SH, Tembalang, Semarang, Jawa Tengah, 50275
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : JURNAL SISTEM INFORMASI BISNIS

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Web Usage Mining, Pattern Discovery dan Log File Suratno, Tri; Prahasto, Toni; Rochim, Adian Fatchur
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 1, No 2 (2011): Volume 1 Nomor 2 Tahun 2011
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.627 KB) | DOI: 10.21456/vol1iss2pp93-98

Abstract

Analysis  of  data  to  access  the  server  can  provide  significant  and  useful  information  for  performance  improvement,  restructuring  andimproving the effectiveness of a web site. Data mining is one of the most effective way to detect a series of patterns of information from large amounts of data. Application of  data mining  on  Internet use  called web  mining  is a set of  data mining  techniques  are  used  for the web. Web mining technologies and data mining is a combination of web, which is the integration of technology resources extracted from the  information  world wide web  as  the  implications  of the  web  resources  of interest to  know the  value  of the  model extraction Potentialuse of  data mining  algorithms  over  a variety  of  observational  data for  identify  patterns  of  web resources. Target analysis of web mining is the data from the web, such as data visitors access, web page structure, and format web pages.  Target analysis of the study is that web mining  web  usage  mining  using  association  rules  on  the  website  www.faperta.unja.ac.id  obtained  from  the  log  file  that  is  used  to discover the navigation patterns, and discover the rules of the association between a combination of items.  To  determine the pattern ofvisits  in  a  web,  and  to  identify  what  pages  are frequented by  visitors  of  a  website,  which  can  be used  to  improve  website design  andrecommend the display, as well as the links are often used by visitors, so the quality of services from website www.faperta.unja.ac.id can be provided effectively and efficiently.Keywords : Web Mining; Web usage mining; Data mining; Log file; Website; World wide web
Penilaian Risiko Aplikasi Web Menggunakan Model DREAD Suprihanto, Didit; Prahasto, Toni; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 3, No 2 (2013): Volume 3 Nomor 2 Tahun 2013
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.913 KB) | DOI: 10.21456/vol3iss2pp59-66

Abstract

Application that  is developed by web based, beside has surplus in WWW technology, it has susceptibility side that can be threat too. Susceptibility generate risk and can bring out big trouble even effect big disadvantage. The goal of this research is design and build document risk assessment system of threat level and prevention advice. It use DREAD model as method to solve trouble by giving qualified information. This information are used to produce risk level in web application. The result of this research is web application risk assessment system by using DREAD model to know risk threat level and equate perception of web threat risk to application developer, minimize of threat risk and maximize performance of web application.   Keywords : DREAD model, web threat risk, web risk assessment system
Diagnosa Kerusakan Bearing Menggunakan Principal Component Analysis (PCA) dan Naïve Bayes Classifier Pudyastuti, Dwi; Prahasto, Toni; Widodo, Achmad
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 6, No 2 (2016): Volume 6 Nomor 2 Tahun 2016
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.1 KB) | DOI: 10.21456/vol6iss2pp114-123

Abstract

This research is discussing about the usage of data mining which addressed for bearing fault diagnosis. Bearing was one of the essential parts in industry machinery. Bearing was used to reduce machines frictions or could be a moving component which oppressed each other.  This fault diagnosis can avoid loss and damage of other machines components. This research was started with data preprocessing using wavelet discrete transformation, feature extraction, feature reduction using Principal Component Analysis (PCA), and classification process using Naïve Bayes classifier methods. Naïve Bayes Classifier is a classification method which based on probability and Bayesian theorem. Output of these method shows that Naïve Bayes classification have a good performance which shown by a good accuracy in each data test.
Penggunaan Jaringan Syaraf Tiruan Backpropagation Untuk Seleksi Penerimaan Mahasiswa Baru Pada Jurusan Teknik Komputer Di Politeknik Negeri Sriwijaya Agustin, Maria; Prahasto, Toni
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 2 (2012): Volume 2 Nomor 2 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.784 KB) | DOI: 10.21456/vol2iss2pp089-097

Abstract

Data availability of new studentsat the Polytechnic State Srivijaya high enough, so the need fora method to analyze the data. Artificial neuralnetwork  is  an  information  processing  system  that  has  characteristics  similar  to  biological  neural  networks,  neural  network  sare  used  topredict because ofthe ability of a good approach to ketidak linearan. This study  will design the software selection admission of new studentswith a  backpropagation  neural network  methods.    From the analysis of  backpropagation  neural networks  with  one  hidden layer  with  the number of neurons 50, 1000 iteration sand the activation functiont an sigproduce regression of 0.4822. Backpropagation neural network withtwo  hidden  layers  with  the  number  of  neurons  50,  4000  iterations  with  tansig  activation  function,  resulting  in  regression  of  0.7944. Backpropagation  neural networks  with 3  hidden layer  with  the number of neurons  35,  5000  iterations, resulting in  regression  of  0.8563. Based  on  the  results  of  this  analysis,  backpropagation  neural  networks  quite  effectively  used  for  selection  of  candidates  for  student admission.Keywords: Selection, Backpropagation, Regression
Evaluasi Human Machine Interface Menggunakan Kriteria Usability Pada Sistem E-learning Perguruan Tinggi Qashlim, Akhmad; Prahasto, Toni; Gernowo, Rachmat
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 4, No 2 (2014): Volume 4 Nomor 2 Tahun 2014
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2931.619 KB) | DOI: 10.21456/vol4iss2pp96-107

Abstract

Integration HMI with usability in user interface design process is a standart of the success of a website. The design process is done through the approach to the end user to find a problem solution of human machine interface phenomena. It can also generate the maximum level of satisfaction and success of implementation of the website. The purpose of this research is to evaluate HMI using usabilitycriteria to know the application of HMI concept in e-learning and provide proposals for improvements to the HMI. Questionnaire Data were processed using a descriptive analysis and methods of CFA to know the variables that are weakest and which indicators have an important role in shaping the research variables. Evaluation results indicate the application concept of HMI in the e-learning had been done but not the maximum. Data analysis of the results obtained that the main problem lies in the accessibility criteria in the meantime indicator latent variables from forming error prevention, learnability, memorability, visibility and accessibility of influential factor loading values indicated significantly (unidimensionalitas) in shaping the criteria of latent variables in first-order CFA. The end result of this research is the proposal of improvement as a HMI solution in the form of principles and technicsuser interface design. This solution is focused on the development of standards for the quality of the interface in e-learning systems and not on the digital learning content presented on the e-learning system. Keywords: Descriptive analisis; Human machine interface; Usability; Confirmatory factor analisys; Elearning
Particle Swarm Optimization Untuk Sistem Informasi Penjadwalan Resource Di Perguruan Tinggi Mansur, Mansur; Prahasto, Toni; Farikhin, Farikhin
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 4, No 1 (2014): Volume 4 Nomor 1 Tahun 2014
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2225.617 KB) | DOI: 10.21456/vol4iss1pp11-19

Abstract

Course timetabling management information system is a system focusing on data management resource and constraints in optimizing the use of available resources and avoid clashing in the process of making class timetabling, so that the resulting information will be effective. Results of such information may assist the college in planning the use of space, and to develop programs of study. Data resource and constraints are implemented using timetabling information system with PSO algorithm. The results of the data analysis using the PSO algorithm by combining six hard constraint and two soft constraints cannot produce an optimal solution, because there are still clashing lecturer-timeslot (soft1), but without combining both soft constraints can produce maximum solutions in the use of the room, where the solution with the best fitness value (0.333), c1(2,0), c2(2,0), w(0,2), and maximum of 10 iterations of the desired solution. The final results are timetabling management information system for resource utilization that generates class timetable information and use of the room.   Keywords : Management information system; PSO algorithm; Resource; Constraints; Course timetabling; Higher education
Analisis Faktor Kredibilitas Website E-Commerce Indonesia Studi pada Online Purchasing Cordiaz, Muhammad; Prahasto, Toni; Widiyanto, Ibnu
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 3, No 1 (2013): Volume 3 Nomor 1 Tahun 2013
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.7 KB) | DOI: 10.21456/vol3iss1pp41-47

Abstract

In the number of Internet users in Indonesia continues to increase. Internet increasingly being used for purchasing online. There are many e-commerce websites that offer goods and services online. Internet users should be able to distinguish which websites are credible before engaging in electronic commerce activities. Be an interesting question, what factors are rated by visitors of a website as an e-commerce website that is credible or reliable. Using a web-based survey methods, respondents were asked what factors support the credibility of the website in electronic commerce purchasing transactions. The respondents were Internet users. Proposed survey questions are grouped into four factors, namely, kerpercayaan factors, factors expertise, sponsorship factors and specific factors. The survey results were tested with descriptive statistic. Based on the data obtained, the Trust Factor respondents prefer e-commerce website that is trusted by his close associates, while the respondents assess the Skill Factor of websites that apply when payments online transactions through banks Indonesia is considered more reliable. In the Sponsorship Factor and Specific Factor, respondents believe the e-commerce website that does television ads in the media and managed by official institutions. Keywords : credibility, trustworthiness, expertise, electronic commerce, online purchasing
Rancang Bangun Computer Assisted Instruction (CAI) Sebagai Media Pembelajaran Dalam Mata Pelajaran Fisika Sekolah Menengah Atas Harjanto, Arif; Prahasto, Toni; Suhartono, Suhartono
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 1, No 3 (2011): Volume 1 Nomor 3 Tahun 2011
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (623.73 KB) | DOI: 10.21456/vol1iss3pp177-122

Abstract

Strategy of using of Computer Assisted Instruction (CAI) as learning media is needed for solving problems that rise in learning process. Good learning packaging give positive effect in improving human potency. CAI as learning media based on computer microprocessor is built as complement and support learning method that usually use lecturing method, information discussion, and presentation.  The goal of this research is design and build interactive learning media CAI by multimedia technology. Result of this research is CAI visualisation by tutorial model and simulation as physics learning media by computer for senior high school students, XI Grade. This research involve a number of 8 teachers and 90 student XI Grade as respondents. Respondents questionnaire result show that 91.11% of students state that CAI product is qualified, 75.11% of students state that material presentation are qualified, 95.11% of students state that CAI program can increase study motivation.Keywords : Computer Assisted Instruction (CAI); Learning Media; Multimedia; Physics.
Rancang Bangun Sistem Informasi Pelayanan Kesehatan Berbasis Customer Relationship Management Menggunakan Teknologi Short Message Service (SMS) Sutrisno, Trismianto Asmo Sutrisno; Prahasto, Toni; Suhartono, Suhartono
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 3 (2012): Volume 2 Nomor 3 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21456/vol2iss3pp160-168

Abstract

Recently, there are many hospitals as the health-care services choose to use the concept of Customer Relationship Management (CRM) to build the trust bridges between the hospitals and their patients. The implementation of CRM in health caring, especially for pregnant women needs to do; such as the delivery of information related to the pregnant women to get antenatal care as the scheduled or pregnant women desire to obtain information dealing with their pregnancy. The irrelevant, slow and inaccurate information can cause the health care services given to the patients are not optimal, so that they can reduce patients’ loyalty toward the health-care services. This research resulted health care information system based on Customer Relationship Management using Short Message Service (SMS) technology with case study of health care for pregnant women. The resulted information system is produced by the System Development Life Cycle methodology using the Waterfall model. One of the features produced is the pregnant women will receive a confirmation SMS to obtain antenatal care with a schedule until 28 weeks of their pregnancy check up every four weeks, 28-36 weeks of their pregnancy check up every two weeks, and 36-40 weeks of their pregnancy check up once a week.   Keywords: Pregnant Women, Antenatal Care, Customer Relationship Management, Short Message Service
Rancang Bangun Data Warehouse Untuk Analisis Kinerja Penjualan Pada Industri Dengan Model Spa-Dw Putra, Randy Oktrima; Prahasto, Toni
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 1 (2012): Volume 2 Nomor 1 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (922.88 KB) | DOI: 10.21456/vol2iss1pp036-042

Abstract

A company, majorly company that active in commercial (profit orientation) need to analyze their sales performance. By analyzing sales performance, company can increase their sales performance. One of method to analyze sales performance is by collecting historical data that relates to sales and then process that data so that produce information that show company sales performance.   A data warehouse is a set of data that has characteristic subject oriented, time variant, integrated, and nonvolatile that help company management in processing of decision making. Design of data warehouse is started from collecting data that relate to sales such as product, customer, sales area, sales transaction, etc. After collecting the data, next is data extraction and transformation. Data extraction is a process f or selecting data that will be loaded into data warehouse. Data transformation is making some change to the data afte r extracted to be more consistent. After transformation processing, data are loaded into data warehouse. Data in data warehouse is processed by OLAP (On Line Analytical Processing) to produce information.  Information that are produced from data processing  by OLAP are chart and query reporting. Chart reporting are sales chart based on cement type, sales chart based on sales area, sales chart based on plant, monthly and year ly sales chart, and chart based on customer feedback. Query reporting are sales based on cement type, sales area, plant and customer.Keywords: Data warehouse; OLAP; Sales performance analysis; Ready mix market
Co-Authors - Suhartono Achmad Widodo Ade Muhamad Bukhori Adian Fatchur Rochim Agatha Beny Himawan, Agatha Beny Akhmad Qashlim, Akhmad Albert Ishac Einstein Simanjuntak Alfin Angga Andy Rahmawan Ardynugraha, Ivan Dwi Hascaryo Arif Harjanto Aris Sugiharto Bagus Sajiwo, Bagus Benny Ardhi Subarkah Bryan Setyawan Cleves Ibrahim Akbar Darmawan, Mikhael Dixon David Titian Wiranata Dedy Kurniadi Dema Wikatama Diah Wulandari Didit Suprihanto, Didit Dio Akmal Prayoga Djoeli Satrijo Djoeli Satrijo Djoeli Satrijo dwi pudyastuti, dwi Dwiyanto, Andreas Dzaky Nauvalika Ramadhani Edward Rissan Girsang Endhy Priambodo Ermanu Hanindityo Fajar Nur Hidayat Falah, Bahtiar Felix Wahyu Utomo Fitra Nur Huda Haryadi , Gunawan Dwi Hasyid Ahmad Wicaksono Hendrianto Hendrianto, Hendrianto I Nyoman Chandra Kusuma, I Nyoman Chandra Ibnu Agistia Dzaky Ibnu Widiyanto Irwan Budiman Irwan Budiman Ismoyo Haryanto Ismoyo Haryanto Ivan Dwi Hascaryo Ardynugraha Joga Dharma Setiawan Jonathan Banta Putera Ketaren Juwanda, Farikhin M. Averoes Al-ghazales Makhfudz Ali Mansur Mansur Maria Agustin Mohammad Tauviqirrahman Mohammad Tauviqirrahman Muchammad Akbar Ghozali Muhammad Cordiaz, Muhammad Muhammad Yanuar Rifa Muhammad Zainal Mahfud Munadi Munadi Munadi Munadi Negara, Farrel Theodore Kusuma Neil Zefanya Yohanes Noorasheed, Willy Ojo Kurdi Ojo Kurdi Paryanto Pratama Eka Putra Sijabat Priyo Nugroho Adi Pusaka, Semerdanta Rachmat Gernowo Radhi Maladzi Randy Oktrima Putra Rifka Hana Indraswari Rifky Ismail Rinta Kridalukmana Riza Armansyah Rusnaldy Rusnaldy Setiawan, Falih Stephen Owen Hizkia Susana Ayu Handayani Susilo Adi Widyanto Teguh Indra Firmansyah Tri Suratno Trismianto Asmo Sutrisno Trismianto Asmo Sutrisno Sutrisno Vincencius Gunawan, Vincencius Widodo , Achmad Yoga Prasetya Yosua Wijaya Yuli Christyono