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All Journal Indonesian Journal of Electronics and Instrumentation Systems IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Ilmu Komputer dan Informasi Jurnal Ilmu Komputer Jurnal Masyarakat Informatika Proceedings of KNASTIK Jurnal Buana Informatika Jurnal Informatika JUTI: Jurnal Ilmiah Teknologi Informasi Seminar Nasional Informatika (SEMNASIF) Science and Technology Indonesia SISFOTENIKA Angkasa: Jurnal Ilmiah Bidang Teknologi Dewantara Journal of Technology Journal of Materials Exploration and Findings (JMEF) Makara Journal of Science
Ahmad Ashari
Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Physics

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Journal : IJCCS (Indonesian Journal of Computing and Cybernetics Systems)

 1 
WEB Services Implementation on The Report of Dengue Hemorrhagic Fever (DHF) At Health Office Karanganyar Ragil Saputra; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 5, No 1 (2011): January
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.2009

Abstract

Abstract— Dengue Hemorrhagic Fever (DHF) is one of the infectious diseases that frequently leads to Extraordinary Situation. The management of report is conducted by Health Community Center which subsequently gives report to Health Office. A problem arising from the report management is the fact that the report is conducted manually, therefore, the data is less valid and is not processed as quickly as possible. The quick and accurate data report system enables to lessen the risk of Dengue Hemorrhagic Fever. Due to this fact, it is undeniable necessary to provide an integrated inter-system of Dengue Fever report. This system includes an inter-system between one Health Community Center to another and to the system in Health Office. The integration of inter-system report is able to be conducted by the use of web service technology. Therefore, this research focuses on the development of Web Service based integrated system on the report of Dengue Fever. Data exchange is conducted in XML form by the application of SOAP and WSDL technologies. Library NuSOAP is necessary to provide class soapClient and soapServer. In other words, it functions as the listener whose functions are to receive and to respond at the access demand toward web service. The result is web service based report system which has dual functions since the system has functions to be either server or client.Keywords— web service, integration, SOAP, DHF.
Rancang Bangun Fault Tolerance pada Sistem Database untuk Aplikasi Point Of Sale Standy Oei; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 5, No 2 (2011): July
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.2017

Abstract

Abstract— A fault tolerant system is a system that has the ability to be able to continue its jobs properly although there is a fault in hardware or software of the system. A system that has a fault tolerant capability is usually critical or important system. For example is at Point Of Sale application. Point Of Sale Application has evolved from offline-based toward online-based. With an online-based, the existence of a central database server must be guaranteed free from failure.To get a central database server that is free from failure is impossible. Something that can be cultivated is to create a system that can tolerate a failure in the central database server. This is done with the help of a second central database server (slave), which is useful as a replication of the central database server (master). To ensure data from these two central database servers are the same, then used the concept of reading and writing "read one/write all". And to manage all the processes needed in implementing a fault tolerant application, we need the help from a coordinator.The result obtained in this research is a design of fault tolerant architecture that can be applied to various types of information system applications include Point Of Sale application. By using this fault tolerant architecture that has been built, Point Of Sale application can still run the transaction process even if there is a failure in accessing data in one central database server (master/slave). Keywords— fault tolerance, database system, point of sale application
Rancang Bangun Keamanan Web Service Dengan Metode Ws-Security Ari Muzakir; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 6, No 1 (2012): January
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.2035

Abstract

AbstrakWeb service menggunakan teknologi XML dalam melakukan pertukaran data. Umumnya penggunaan web service terjadi pertukaran data ataupun informasi penting yang perlu dijaga keamanannya. Bentuk pengamanan yang diterapkan pada web services adalah dengan penggunaan teknik kriptografi kunci-publik. Adapun serangan dapat berupa pengintaian, perusakan maupun pencurian data. Salah satu cara penyelesaian terbaik adalah dengan membuat data tersebut tidak dapat dibaca orang lain. Implementasi yang telah dilakukan dengan menggunakan library keamanan akan memberikan kemudahan dalam membangun keamanan web service karena dengan dukungan library XMLSEC sebagai library pendukung dan library class_wss yang telah dibangun mampu mengatasi masalah keamanan pada jalur transport khususnya untuk otentikasi, otorisasi, dan konfidensialitas pesan SOAP request. Model WS-Security dengan menggunakan XML Signature, XML Encryption, serta Security Token yang memanfaatkan algoritma kriptografi RSA dengan panjang kunci 1024 bit mampu memberikan perlindungan terhadap transmisi data antara client dan server web service. Pengujian yang dilakukan pada web service dengan menerapkan model library class_wss sebagai keamanan web service yang dibangun memberikan hasil yang baik, yaitu pesan SOAP request terenkripsi dan mampu didekripsi dengan baik serta dapat tertandatangani dan dicek keasliannya.Kata kunci— Keamanan Web Service, XML Signature, XML  Encryption, Security Token. Abstract Web service uses XML technology to exchange data in. Generally, the use of the web service exchanges data or important information that needs to be guarded security. Form of security is applied to web services is to use public-key cryptography techniques. The attack can be a reconnaissance, destruction or theft of data. One way the best solution is to create data that can not read anyone else, even if someone else managed to retrieve the data, he will not be able to read it.            The implementation was done by using the security library will provide facilities in developing a web security service for the library support XMLSEC as library supporters and library class_wss that have been built able to overcome the problem of security on the transport path, especially for authentication, authorization, and confidentiality request SOAP message. Model WS-Security using XML Signature, XML Encryption, and Security Token which utilizes the cryptographic algorithm RSA with 1024 bit key length to provide protection against transmission of data between client and server web service. Tests performed on the web service by implementing a security model class_wss library web service that is built to give good results, the SOAP request message is encrypted and decrypted with a good and able to sign and check their authenticity too.Keywords— Web Service Security, XML Signature, XML Encryption, Security Token
Integrasi Database DISDUKCAPIL dan Database KPU Kabupaten Maros Memanfaatkan Web Services Frans N. Allokendek; John Soetikno; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 7, No 1 (2013): January
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.3047

Abstract

AbstrakBanyaknya permasalahan yang ditemukan dalam pelaksanaan Pemilukada, baik yang disebabkan oleh penyelenggara maupun oleh peserta.Permasalahan yang sering terjadi adalah tidak tersedianya data daftar penduduk potensi pemilih pilkada (DP4) yang ter-update, penggelembungan jumlah pemilih karena adanya data ganda, dan terbatasnya waktu untuk memverifikasi dokumen.Permasalahan yang serupa yang dihadapi oleh KPU Maros ditambah dengan terbatasnya sarana/media publikasi yang disediakan oleh KPU Maros dalam menginformasikan DPS dan DPT kepada masyarakat.Web service adalah sebuah teknologi yang meliputi sekumpulan standar yang memungkinkan dua aplikasi komputer dapat saling berkomunikasi dan bertukar data di internet. Teknologi web services menawarkan kecepatan dan kemudahan dalam mendapatkan informasi dari berbagai sumber tanpa mempermasalahkan perbedaan teknologi yang digunakan. Dalam penelitian ini, web service digunakan untuk mengkomunikasikan dua aplikasi yang berbeda yaitu SIAK DISDUKCAPIL Kabupaten Maros dan SIDP KPU Kabupaten Maros.Penelitian ini dilanjutkan dengan membuat suatu desain sistem dan implementasi berupa prototype sistem yang mengintegrasikan data dari database SIAK DISDUKCAPIL dengan database KPU di Kabupaten Maros dengan memanfaatkan teknologi web services. Hasilnya adalah didapatnya DPT yang valid serta adanya alternatif lain dalam mempublikasikan DPT kepada masyarakat, disamping tetap menggunakan media publikasi yang telah digunakan selama ini. Kata kunci— Web Services, Integrasi Data, DPT AbstractMany problems are encountered in the implementation of Local Election, which are caused by both the committee and participants. The problems that frequently occurred are the unavailability of data on the list of updated potential population to be voters in Local Election, the swallowing number of voters due to double data, and the limited time to verify documents. The similar problems that are encountered by General Election Committee of Maros Regency.Web service is a technology that includes a set of standards allowing two computer applications that can communicate with each other and exchange data in Internet. In the study, web services are used to communicate two different applications: SIAK of  the Demography and Civil Registration Office of Maros Regency and SIDP of the General Election Committee of Maros Regency.The study is followed by making the design of system and implementation such as a prototype data integration system between the database of SIAK of the Demography and Civil Registration Office of Maros Regency and that of General KPU in Maros Regency by utilizing web service technology. The result is the valid Fixed Voter List. Keywords—Web Services, Data Integration, Fixed Voter List
Pengembangan Sistem Evaluasi Kegiatan Belajar Mengajar Berbasis Web Studi Kasus : di SMA Negeri 1 Surakarta Emi Budi Susilowati; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 7, No 2 (2013): July
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.3360

Abstract

AbstrakInternet telah menjadi sumber informasi yang tidak terbatas di dalam pendidikan. Dengan adanya internet, berbagai informasi dapat diperoleh secara mudah dan cepat serta memberikan banyak manfaat diantaranya memperluas cakrawala siswa, sebagai sumber tambahan pelajaran dan mengembangkan kreatifitas siswa. Disamping itu juga dikembangkannya online learning yang memudahkan guru dalam memberikan pengayaan materi diluar tatap muka maupun memberikan evaluasi kepada peserta didik dengan memanfaatan jaringan internet sehingga mempermudah dan memperlancar dalam penyelenggaraan pendidikan.  Salah satu teknologi dalam internet yang digunakan adalah web service. Web service dibangun pada inti protokol internet yaitu TCP/IP dan HTTP. Dalam kegiatan belajar mengajar dikenal suatu evaluasi yang merupakan pengukuran hasil belajar siswa sebagai prestasi belajar, yaitu penguasaan materi pelajaran sesuai dengan kompetensi yang ditetapkan.  Untuk mempermudah dalam mengukur ketercapaian belajar tersebut dikembangkan program aplikasi Sistem Evaluasi Kegiatan Belajar Mengajar Berbasis Web yang diintegrasikan dengan e-learning yang sudah tersedia, sehingga kebutuhan user yang menggunakan online test dari e-learning bisa ditangani.Penelitian ini menghasilkan web penyedia layanan analisis butir soal dan analisis ketuntasan belajar yang diintegrasikan dengan e-learning yang sudah tersedia disekolah menggunakan web service. Pengujian dilakukan dengan  cara pengintegrasian data dengan e-learning dilakukan tukar menukar pesan terhadap permintaan, tanggapan dan kesalahan dalam parameter permintaan. Kata kunci— Web Service, e-learning, Analisis Evaluasi Pembelajaran  AbstractThe Internet has become an unlimited source of information in education. With the Internet, information can be obtained easily and quickly and provides many benefits including expanding the horizons of students, as an additional source of learning and develop student creativity. Besides, the development of online learning that allows teachers to provide enrichment materials outside of face-to-face and provide evaluations to students with memanfaatan Internet network that simplify and streamline the education. One of the technologies used in the Internet is a web service. Web services are built on the core Internet protocols are TCP / IP and HTTP.In the teaching and learning activities that are known to an evaluation of student learning outcomes as a measurement of achievement, that mastery of the subject matter in accordance with established competencies. To make it easier to measure the achievement of learning were developed application program Evaluation System Teaching and Learning Activities are integrated with the Web-based e-learning are already available, so the user needs to use online test of the e-learning can be handled.This research resulted in the service provider's point about the analysis and the analysis of mastery learning that integrates with existing e-learning available at the school using the web service. Testing is done by integrating the data with e-learning done exchanging messages to requests, responses and errors in parameter query. Keywords—Web services, e-learning, Learning Evaluation Analysis
Analisis Kinerja Voip Server pada Wireless Access Point Effan Najwaini; Ahmad Ashari
IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Vol 9, No 1 (2015): January
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijccs.6643

Abstract

AbstrakPada komunikasi VoIP (Voice Over IP) kualitas suara dipengaruhi oleh banyak faktor salah satunya yaitu kualitas server. Pemilihan platform PC atau server yang cocok (baik dari segi harga maupun kinerja) merupakan persoalan utama dalam membangun jaringan VoIP. Kinerja server yang jelek akan menurunkan kualitas suara atau bahkan tidak mampu untuk menghubungkan antar pengguna.Dalam penelitian ini dilakukan pengujian terhadap kinerja wireless access point Linksys WRT54GL yang dimanfaatkan sebagai VoIP server. Pengujian dilakukan untuk mengetahui berapa banyak panggilan VoIP yang mampu dilayani oleh wireless access point sebagai VoIP server serta berapa waktu yang diperlukan oleh server tersebut untuk dapat memproses setiap sinyal SIP maupun paket RTP. Berdasarkan hasil pengujian yang dilakukan, VoIP server pada wireless access point mampu melayani komunikasi VoIP dengan baik untuk jumlah panggilan yang sedikit sehingga layak diimplementasikan pada penggunaan skala kecil. Penggunaan metode Native Bridging dalam penanganan media yang dilakukan oleh server dapat meningkatkan jumlah panggilan yang mampu dilayani sebesar 3 hingga 7 kali dibandingkan dengan metode lainnya.  Kata kunci—VoIP, Asterisk, Acess Point, WRT54GL, OpenWRT, Kinerja   AbstractVoice quality on VoIP communication is caused by many factors, one of which is the quality of the server. Choosing PC platform or server which is suitable is the main issue in developing VoIP network. A bad server performance or not equivalent with the most of users will degrade the sound quality or even not able to connect between users.Tthe test carried out to the performance of the wireless access point Linksys WRT54GL which is used as a VoIP server. The test was carried out to determine how many VoIP calls which are able to be serviced by a wireless access point as a VoIP server and how long the server needs to be able to process every signal of SIP and RTP packet.Based on the test result performed, the VoIP server on the wireless access point is able to serve VoIP communication well for a few calls number, so it is worth to be implemented on the use of small scale. The use of Native Bridging method in handling the media performed by the server can increase the number of calls that were able to be served about 3 to 7 times compared with other methods.  Keywords— VoIP, Asterisk, Acess Point, WRT54GL, OpenWRT, Performance
Co-Authors Adi Nugroho Adi Nugroho Aminuyati Antonius Rachmat Chrismanto Astika AyuningTyas, Astika Aulia Desy Nur Utomo Bambang Nurcahyo Prastowo Bernard Renaldy Suteja Dhaneswara, Donanta Dyah Ayu Irawati, Dyah Ayu Edhy Sutanta (Jurusan Teknik Informatika IST AKPRIND Yogyakarta) Effan Najwaini Emi Budi Susilowati F Soesianto Fatmi, Sri Elsa Fauzan Nurahmadi Fiftin Noviyanto Frans N. Allokendek Handika, Nuraziz Jazi Eko Istiyanto John Soetikno Jonbi Khabib Mustofa Kurniawan Lastanto Lukito Edi Nugroho Muhammad Anis, Muhammad Mursid Wahyu Hananto Nur Asri, Muh Fitra Paulus Insap Santosa Pramudi, Chris Agung Puspo Dewanto Ragil Saputra Ragil Saputra Ratna Wardani Retantyo Wardoyo Ridi Ferdiana Selo Sulistyo, Selo Sjah, Jessica Standy Oei Suraedi, Daral Suryo Guritno Suryo Guritno Suryo Guritno Syakur Willy Sudiarto Raharjo