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All Journal Jurnal Ilmiah Teknologi dan Rekayasa CommIT (Communication & Information Technology) Jurnal Sistem Informasi ComTech: Computer, Mathematics and Engineering Applications Jurnal Informatika dan Sistem Informasi
Suharjito Suharjito, Suharjito
Bina Nusantara University
Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics

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Improving Data Technology Warehouse Performance Using Filesystem with GZIP, LZJB and ZLE Compression Suharjito, Suharjito
Jurnal Informatika dan Sistem Informasi Vol 2 No 2 (2016): Jurnal Informatika dan Sistem Informasi
Publisher : Universitas Ciputra Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.646 KB)

Abstract

Data warehouse application is commonly used by many corporations as an analytical platform to develop marketing strategy and give advantage edge to their business. Many times, data warehouse platform need to manage huge amount of data as it needs to extract, load and transform enterprise data from many sources. To improve performance of data warehouse system, compression has been used in various ways, both at database layer or at filesystem layer. Compression brings an other benefit  as it reduce storage capacity therefore reduce cost. However compression also add data processing that may impact to overall application response time.  In this research, three different compression algorithms which are zle, lzjb and gzip were tested on data warehouse filesystem to understand the performance impact and the capacity saving benefit. Using swingbench as the benchmark tool and oracle database 12c, it shows that zle is the best compression algoritm with performance improvement of 92%, follows by lzjb with 78% performance improvement and gzip with 53% improvement. In terms of compression ratio, gzip can deliver the highest with 3.31 compression ratio, follows by lzjb with 2.17 compression ratio and zle with 1.55 compression ratio. AW.
Learning Management System Development with Application of Asynchronous Learning Method in STMIK IBBI Medan Halim, Marwa; Suharjito, Suharjito
CommIT (Communication and Information Technology) Journal Vol 9, No 2 (2015): CommIT Vol. 9 No. 2 Tahun 2015
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v9i2.1652

Abstract

This article will explain asynchronous learn- ing system using attractive discussion forums and video teaching materials features for user so that the devel- opment of both features will increase e-learning system usage by students and lecturers which can eventually im- prove the students’ absorption on the provided teaching materials, increase the active participation of students, improve self-learning ability, and to improve the quality of learning materials. The method used in this study by distributing questionnaires in online form to stakeholders users consisting of lecturers and students with the num- ber of respondents is 225 people and author use model ADDIE which focuses on Analysis, Design, Development, Implementation and Evaluation as development design. Results of this study is an application of web-based asynchronous learning which can be used by students and lecturers with the results of the application evaluation is based on a survey to students and lecturers. From this study, can be concluded that to support online learning with asynchronous method using the video learning feature in online lecture needs to be developed in order to support the science transformation process from lecturers to students. Attractive video teaching  materials  model for students has characteristics such as screen shots and presentation models.
Executive Information System Modelling to Monitor Indonesian Criminal Rate Bernadi, Josef; Suharjito, Suharjito
CommIT (Communication and Information Technology) Journal Vol 10, No 1 (2016): CommIT Vol. 10 No. 1 Tahun 2016
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v10i1.1663

Abstract

Similar to any other governments, Indonesia government has the role of protecting the security of its citizens via the established police unit. However, the executive unit is often unable to provide response in timely manner due to the huge data size. For the reason, an executive information system (EIS) is established in order to provide necessary information to leverage the decision making process. This work intends to establish and evaluate the executive information system and its support to facilitate the efforts to fight crimes in Indonesia territory. The EIS prototype is established and is evaluated on the basis of the six information system success factors where the required data are collected by means of questionnaire. The results suggest that the factors of system quality, information quality, easy-of-use, user satisfaction, and individual and organization impacts are very significant.
DATABASE OF MIGRATION AND REPLICATION WITH ORACLE GOLDEN GATE Suharjito, Suharjito; Raymond, Raymond; Ratna, Ida
CommIT (Communication and Information Technology) Journal Vol 8, No 2 (2014): CommIT Vol. 8 No. 2 Tahun 2014
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v8i2.597

Abstract

The main goal of this research is to analyze and design a database configuration of migration and replication in PT Metro Batavia. Research methodologies used in this research are data collecting, analysis and design model. Data collecting method is conducted with library research and direct survey in the company. Analysis method is conducted by analyzing hangar system, migration and reflection process and the available problems. Design method is conducted by designing a prototype for migration process with the implementation of Oracle SQL Developer and replication process with implementation of Oracle Golden Gate. The result of this research is a prototype for configuration of migration and replication process by using Oracle Golden Gate, which can produce two sets of identical data for the purpose of backup and recovery, and also design a simple tool that is expected to help active-active or active-passive replication process. The conclusion of this research is migration process of MySQL database to Oracle database by using Oracle Golden Gate hasn’t been conducted, because Oracle Golden Gate still has bug related to binary log, so database of migration is conducted by using Oracle Golden Gate. However, replication of bi-directional in between database of Oracle by using Oracle SQL Developer can guarantee data availability and reduce work burden from primary database.
PENGEMBANGAN BLUEPRINT IT DENGAN ZACHMAN FRAMEWORK DI STP TRISAKTI Widodo, Bambang; Suharjito, Suharjito
Jurnal Sistem Informasi Vol 13 No 1 (2017): Jurnal Sistem Informasi (Journal of Information System)
Publisher : Faculty of Computer Science Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1017.395 KB) | DOI: 10.21609/jsi.v13i1.528

Abstract

The goals of the thesis were to create a model enterprise architecture strategic planning of IS / IT college in the form of IT blueprint with Zachman framework in STP Trisakti. Data were compiled by the main supporting documentation college events, questionnaires, interviews and field observations. Development of IT blueprint is done by utilizing the methodology of Ward & Peppard framework and EA (Enterprise Architecture) Zachman Framework is mapped into the Framework as the ultimate form of IT blueprint. Data were analyzed using analysis tools for internal and external environment. Internal environmental analysis using Value Chain, CSF (Critical Success Factor), the current application portfolio and Asset / IT, while the external environment analysis using the PEST (Political, Economic, Social, Technological), Porters five force and the latest technology trends. It also carried defining enterprise architecture in the form of business architecture, data architecture, application architecture and technology architecture. Results of the Analysis were a blueprint IT shaped matrix cell 36 Zachman. It can be concluded that the can are 5 stages of implementation in the IT blueprint STP Trisakti with three major central system development in four areas of development of the IS / IT is the application portfolio, HR IT, Hardware, Software and Networking
MODEL OF MOBILE TRANSLATOR APPLICATION OF ENGLISH TO BAHASA INDONESIA WITH RULE-BASED AND J2ME Tedjosurya, Dian Puspita; Suharjito, Suharjito
CommIT (Communication and Information Technology) Journal Vol 8, No 1 (2014): CommIT Vol. 8 No. 1 Tahun 2014
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v8i1.593

Abstract

Along with the development of information technology in recent era, a number of new applications emerge, especially on mobile phones. The use of mobile phones, besides as communication media, is also as media of learning, such as translator application. Translator application can be a tool to learn a language, such as English to Bahasa Indonesia translator application. The purpose of this research is to allow user to be able to translate English to Bahasa Indonesia on mobile phone easily. Translator application on this research was developed using Java programming language (especially J2ME) because of its advantage that can run on various operating systems and its open source that can be easily developed and distributed. In this research, data collection was done through literature study, observation, and browsing similar application. Development of the system used object-oriented analysis and design that can be described by using case diagrams, class diagrams, sequence diagrams, and activity diagrams. The translation process used rule-based method. Result of this research is the application of Java-based translator which can translate English sentence into Indonesian sentence. The application can be accessed using a mobile phone with Internet connection. The application has spelling check feature that is able to check the wrong word and provide alternative word that approaches the word input. Conclusion of this research is the application can translate sentence in daily conversation quite well with the sentence structure corresponds and is close to its original meaning.
DEVELOPMENT OF INFORMATION TECHNOLOGY STRATEGIC PLANNING FOR MANUFACTURING INDUSTRY (CASE STUDY: PT MCM) Hardjo, Leonardus; Suharjito, Suharjito
CommIT (Communication and Information Technology) Journal Vol 7, No 2 (2013): CommIT Vol.7 No. 2 Tahun 2013
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v7i2.584

Abstract

IT Department in PT MCM has to carry out the duties and functions of developing solution to support the business unit in their operation and gain some benefits which should be obtained by using IT in manufacturing such as increasing efficiency, improving the effectivity in making decision and helping to promote the products. This study aims to design information technology strategic planning in accordance with the strategic plan. The research method is using the IT Strategic Planning framework of Alex Cullen and Marc Cecere. This study uses SWOT and IT Balanced Scorecard to analyze the needs of IT at PT MCM. The results of this study are recommended strategic steps to optimize the implementation of IT in the company to improve the performance from IT division to obtain the benefits by implementing IT in manufacturing and to form IT Blueprint, which is part of the information technology strategic plan in PT MCM.
Developing IT Strategic Planning Using Mobile Enterprise Architecture In The Academic Process of Atma Jaya Makassar University Tungadi, Astrid Lestari; Suharjito, Suharjito
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 1 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i1.3775

Abstract

The purpose of this research was to examine the feasibility of the development of mobile enterprise strategic plan, analyze the academic process and the utilization of information technology (IT), and generate documentation IT strategic planning by implementing Mobile Enterprise Architecture in the academic process of Atma Jaya University in Makassar. Data were taken from distributing questionnaires to 297 respondents and conducting interviews to 18 respondents. Data were examined using SWOT analysis, the incorporation of academic scorecard analysis and IT balanced scorecard analysis, financial analysis, as well as analytic hierarchy process (AHP). SWOT analysis results indicate that case study is in a weak position, which possibly never take advantage of opportunities since the weakness of the stand or the power is not enough to work on it. In addition, the results of the performance analysis of the utilization of information technology using the Balanced Scorecard analysis show that the average performance is sufficient. The result of documentation of IT strategic planning was analyzed with financial analysis indicating the feasibility of implementation because it provides benefits for university of 141,32%. Furthermore, Analytic Hierarchy Process (AHP) to determine the priority of IT strategy proposals shows that the main priority is to develop portal for student and lecturer.
Cloud Computing Impelementation Using Model Roadmap for Cloud Computing Adoption (ROCCA) on IT Consultant Industry Perdana, Panji Arief; Suharjito, Suharjito
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 3 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i3.3887

Abstract

The purpose of this research was to build cloud computing referring to Roadmap for Cloud Computing Adoption (ROCCA) model so that the best strategy could be implemented in PT Matrica Consulting Service. The implementation of cloud computing had five stages modifications ROCCA adoption model. Those stages were analysis, design, adoption, migration, and management. Data were taken from distributing questionnaires and conducted interviews with R&D Manager and analyzed using SWOT analysis. The result is the implementation of cloud computing models, and implementation of private cloud and Software as a Service (SaaS) needs to be modified so it can be implemented properly. The implementation canincrease the performance PT Matrica Consulting Service based on the characteristics of the cloud which is flexible and secure to be accessed as long as it is connected to the Internet and maintained properly.
Hydroponic Nutrient Control System Based on Internet of Things Herman, Herman; Adidrana, Demi; Surantha, Nico; Suharjito, Suharjito
CommIT (Communication and Information Technology) Journal Vol 13, No 2 (2019): CommIT Vol. 13 No. 2 Tahun 2019
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v13i2.6016

Abstract

The human population significantly increases in crowded urban areas. It causes a reduction of available farming land. Therefore, a landless planting method is needed to supply the food for society. Hydroponics is one of the solutions for gardening methods without using soil. It uses nutrient-enriched mineral water as a nutrition solution for plant growth. Traditionally, hydroponic farming is conducted manually by monitoring the nutrition such as acidity or basicity (pH), the value of Total Dissolved Solids (TDS), Electrical Conductivity (EC), and nutrient temperature. In this research, the researchers propose a system that measures pH, TDS, and nutrient temperature values in the Nutrient Film Technique (NFT) technique using a couple of sensors. The researchers use lettuce as an object of experiment and apply the k-Nearest Neighbor (k-NN) algorithm to predict the classification of nutrient conditions. The result of prediction is used to provide a command to the microcontroller to turn on or off the nutrition controller actuators simultaneously at a time. The experiment result shows that the proposed k-NN algorithm achieves 93.3% accuracy when it sets to k = 5.
Co-Authors Astrid Lestari Tungadi Demi Adidrana Dian Puspita Tedjosurya, Dian Puspita Halim, Marwa Ida Ratna, Ida Josef Bernadi, Josef Leonardus Hardjo, Leonardus Nico Surantha, Nico Perdana, Panji Arief Raymond Raymond Tinambunan, Gusmariani Widodo, Bambang Yundari, Yundari