scholarly journals Pembangunan Aplikasi Transaksi Menu Di Kedai XYZ Kopi Menggunakan QR-Code Dan One Time Password Berbasis E-Wallet

2020 ◽  
Vol 10 (3) ◽  
pp. 113-122
Author(s):  
Fazri Muhamad Kurnia ◽  

The payment process using electronic money is a non-cash payment method based on E-Wallet aimed at facilitating users in transact. The transaction process at the coffee shop XYZ is still done conventionally and takes a long time, causing long queues. The research carried out aims to speed up the transaction process at XYZ coffee shops. The method used in this research is prototype. An alternative solution to the transaction process is to utilize the E-Wallet and QR-Code through the customer's smartphone. This study utilizes Go-Pay E-Wallet access as a means of payment through the Midtrans Payment Gateway and uses the One Time Password code as a login method on the system. Qr-code scanning to place orders can be done quickly which is around 3,551 milliseconds. Quessioner results distributed to 20 customers showed the following data, around 90% agreed on the use of e-wallet as an alternative payment, around 87% agreed on the statement of the use of e-wallet was able to reduce the slow transaction process, about 79% agreed to the statement that this system facilitates the transaction process, as well as 79% level of approval of the use of an authentication code through a mobile number that makes it easy to enter the application. The results showed that the system built can speed up the transaction process.

2015 ◽  
Vol 1 (1) ◽  
pp. 26-33
Author(s):  
Grifito yuan Maulidina

The development of online payment systems such as the online payment point system has greatly assisted the public in processing monthly transactions such as water bills. However, in its application, this system still uses large devices such as computers and inkjet printers so that the operation takes a long time and is less efficient. Therefore, in this study, a mobile application is designed to replace the role of computers in making water bill payment transactions in the online payment point system (SOPP) of PDAM Malang Regency. The application that is connected to a database server via the internet is also integrated with a compact wireless thermal printer that can be carried anywhere and does not require ink refills so that it can speed up the transaction process and be more efficient in time, paper and space. The research method used was experimental and survey methods. The experimental method is used to test the running of the application, test the application's compatibility with the device and measure the time it takes for the application to exchange data. The survey method is used to test user satisfaction with the application.


Author(s):  
I Nyoman Tri Anindia Putra

Web service is one of the methods which is very useful in solving problems in various fields such as from government, education, economics, social, culture. Web services can be defined as methods in exchanging data that can be done without paying attention to where the database is embedded and made in any language. Web services are able to support interoperability, so that the web service is able to become a bridge between various existing systems. STMIK STIKOM INDONESIA is an institution that has used an information system in managing all activities of the academic community within the institution. One of them is the inventory information system, but when doing the overall inventory there was a problem in synchronizing data in the field with the system. It required a long process and took a long time. So that a QR code-based inventory system was developed to simplify and speed up the synchronization process using a web service. The results of the study proved to be able to facilitate and accelerate the performance of staff in synchronizing data in the field with data on the system.


2020 ◽  
Vol 17 (2) ◽  
pp. 287
Author(s):  
Josef Evan Sihaloho ◽  
Atifah Ramadani ◽  
Suci Rahmayanti

ABSTRACTThe use of server-based electronic money is one of the most popular non-cash payment systems in use today. The form of server-based electronic money is e-wallet / digital wallet. E-wallet can be used to transact by customers, if the merchant provides an application Same e-wallet to customers. This made Bank Indonesia, as the regulator of the payment system, issue a new payment channel namely; QRIS (QR Code Indonesia Standard). The use of QRIS is used to standardize all e-wallets applications that use the QR Code system to conduct payment transactions. This study examines how the application of QRIS to UMKM in Medan, and describes the roles, constraints, and income of UMKM s in the presence of QRIS. The research method used is interviews and literature studies with UMKM traders who have used QRIS as a payment tool in their characters. This research indicates that QRIS has benefits for UMKM traders.


Author(s):  
Sefrika Sefrika Sefrika

Pertumbuhan penggunaan uang elektronik di Indonesia turut andil dalam menciptakan cash less society atau masyarakat yang minim menggunakan uang tunai yang berperan dalam mengurangi penggunaan uang cetak di Indonesia. Penggunaan uang elektronik yang mudah dengan menggunakan mesin EDC atau Scan QR Code memudahkan masyarakat dan merchant untuk melakukan transaksi dengan efisien, mengurangi antrian, mempercepat proses pembayaran dan lebih aman. Penelitian ini bertujuan membantu pengguna untuk memilih kriteria yang ditawarkan dari uang elektronik yang dapat digunakan sebagai metode pembayaran khususnya belanja retail. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) merupakan salah satu metode pengambilan keputusan multikriteria yang didasarkan pada konsep bahwa alternatif yang terbaik tidak hanya memiliki jarak terpendek dari solusi ideal positif tetapi juga memiliki jarak terpanjang dari solusi ideal negatif. Hasil penelitian menunjukkan bahwa sistem pendukung keputusan dengan metode TOPSIS dapat digunakan untuk membantu pelanggan dalam memutuskan pemilihan uang elektronik berdasarkan kriteria yang ditawarkan. Hasil penelitian mendapatkan nilai preferensi akhir sebesar 0,84 dari kriteria C2 dan C3. Kriteria tersebut adalah Terdapat promo, diskon, cashback (C2) dan Mengurangi penggunaan uang tunai (cashless) (C3). The growth in the use of electronic money in Indonesia has contributed to creating a cash less society or a society that uses minimal cash which has a role in reducing the use of printed money in Indonesia. The easy use of electronic money by using EDC machines or QR Code Scan makes it easy for the public and merchants to conduct transactions efficiently, reduce queues, speed up the payment process and be safer. This study aims to help users to choose the criteria offered from electronic money that can be used as a method of payment, especially retail shopping. TOPSIS is one of the multi-criteria decision making methods based on the concept that the best alternative not only has the shortest distance from the positive ideal solution but also has the longest distance from the negative ideal solution. The results showed that the decision support system with the TOPSIS method can be used to assist customers in deciding the selection of electronic money based on the criteria offered. The results obtained a final preference value of 0.84 from the C2 and C3 criteria. These criteria are There are promos, discounts, cashback (C2) and Reducing the use of cash (cashless) (C3).


2004 ◽  
Vol 34 (136) ◽  
pp. 455-468
Author(s):  
Hartwig Berger

The article discusses the future of mobility in the light of energy resources. Fossil fuel will not be available for a long time - not to mention its growing environmental and political conflicts. In analysing the potential of biofuel it is argued that the high demands of modern mobility can hardly be fulfilled in the future. Furthermore, the change into using biofuel will probably lead to increasing conflicts between the fuel market and the food market, as well as to conflicts with regional agricultural networks in the third world. Petrol imperialism might be replaced by bio imperialism. Therefore, mobility on a solar base pursues a double strategy of raising efficiency on the one hand and strongly reducing mobility itself on the other.


Author(s):  
Артур Анатолійович Василенко

UDC 336.74   Vasylenko Artur, post-graduate student. Mariupol State University. Cryptocurrency Phenomenon in the International Monetary System. The main prerequisites of cryptocurrency emergence in the international monetary system in terms of regionalization of the world economy are defined in the article. Determination of «cryptocurrency» category was analysed from the point of two main approaches to its treatment: on the one hand cryptocurrency is admitted to be the currency equally to the sovereign currency, and on the other hand it is considered as an unrecognized virtual asset. The main consequences which arise in case of widespread use of crypto currency for the country and for the parties that agreed to use cryptocurrency were analysed and systematized. On the basis of the research, given the current trends in the world economy, the author put forward and substantiated the hypothesis to classify the phenomenon of cryptocurrency as the effects of a famous philosophical «Negation of negation law» formulated by G. Hegel at the beginning of the XIX century.   Keywords: cryptocurrency, material money, electronic money, digital currency, regional currency integration, blockchain, mining, capitalization, «Negation of negation law».


2020 ◽  
Author(s):  
Claudia Mazzuca ◽  
Matteo Santarelli

The concept of gender has been the battleground of scientific and political speculations for a long time. On the one hand, some accounts contended that gender is a biological feature, while on the other hand some scholars maintained that gender is a socio-cultural construct (e.g., Butler, 1990; Risman, 2004). Some of the questions that animated the debate on gender over history are: how many genders are there? Is gender rooted in our biological asset? Are gender and sex the same thing? All of these questions entwine one more crucial, and often overlooked interrogative. How is it possible for a concept to be the purview of so many disagreements and conceptual redefinitions? The question that this paper addresses is therefore not which specific account of gender is preferable. Rather, the main question we will address is how and why is even possible to disagree on how gender should be considered. To provide partial answers to these questions, we suggest that gender/sex (van Anders, 2015; Fausto-Sterling, 2019) is an illustrative example of politicized concepts. We show that no concepts are political in themselves; instead, some concepts are subjected to a process involving a progressive detachment from their supposed concrete referent (i.e., abstractness), a tension to generalizability (i.e., abstraction), a partial indeterminacy (i.e., vagueness), and the possibility of being contested (i.e., contestability). All of these features differentially contribute to what we call the politicization of a concept. In short, we will claim that in order to politicize a concept, a possible strategy is to evidence its more abstract facets, without denying its more embodied and perceptual components (Borghi et al., 2019). So, we will first outline how gender has been treated in psychological and philosophical discussions, to evidence its essentially contestable character thereby showing how it became a politicized concept. Then we will review some of the most influential accounts of political concepts, arguing that currently they need to be integrated with more sophisticated distinctions (e.g., Koselleck, 2004). The notions gained from the analyses of some of the most important accounts of political concepts in social sciences and philosophy will allow us to implement a more dynamic approach to political concepts. Specifically, when translated into the cognitive science framework, these reflections will help us clarifying some crucial aspects of the nature of politicized concepts. Bridging together social and cognitive sciences, we will show how politicized concepts are abstract concepts, or better abstract conceptualizations.


Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1117
Author(s):  
Bin Li ◽  
Zhikang Jiang ◽  
Jie Chen

Computing the sparse fast Fourier transform (sFFT) has emerged as a critical topic for a long time because of its high efficiency and wide practicability. More than twenty different sFFT algorithms compute discrete Fourier transform (DFT) by their unique methods so far. In order to use them properly, the urgent topic of great concern is how to analyze and evaluate the performance of these algorithms in theory and practice. This paper mainly discusses the technology and performance of sFFT algorithms using the aliasing filter. In the first part, the paper introduces the three frameworks: the one-shot framework based on the compressed sensing (CS) solver, the peeling framework based on the bipartite graph and the iterative framework based on the binary tree search. Then, we obtain the conclusion of the performance of six corresponding algorithms: the sFFT-DT1.0, sFFT-DT2.0, sFFT-DT3.0, FFAST, R-FFAST, and DSFFT algorithms in theory. In the second part, we make two categories of experiments for computing the signals of different SNRs, different lengths, and different sparsities by a standard testing platform and record the run time, the percentage of the signal sampled, and the L0, L1, and L2 errors both in the exactly sparse case and the general sparse case. The results of these performance analyses are our guide to optimize these algorithms and use them selectively.


2020 ◽  
Vol 13 (1) ◽  
pp. 31
Author(s):  
Enrico Creaco ◽  
Giacomo Galuppini ◽  
Alberto Campisano ◽  
Marco Franchini

This paper presents a two-step methodology for the stochastic generation of snapshot peak demand scenarios in water distribution networks (WDNs), each of which is based on a single combination of demand values at WDN nodes. The methodology describes the hourly demand at both nodal and WDN scales through a beta probabilistic model, which is flexible enough to suit both small and large demand aggregations in terms of mean, standard deviation, and skewness. The first step of the methodology enables generating separately the peak demand samples at WDN nodes. Then, in the second step, the nodal demand samples are consistently reordered to build snapshot demand scenarios for the WDN, while respecting the rank cross-correlations at lag 0. The applications concerned the one-year long dataset of about 1000 user demand values from the district of Soccavo, Naples (Italy). Best-fit scaling equations were constructed to express the main statistics of peak demand as a function of the average demand value on a long-time horizon, i.e., one year. The results of applications to four case studies proved the methodology effective and robust for various numbers and sizes of users.


Author(s):  
Koen De Temmerman ◽  
Danny Praet

This chapter explores martyr accounts. Scholars traditionally divide these texts into two types: narrative representations of the suffering and death of martyrs (the so-called passiones) on the one hand, and dramatic representations of the trial preceding this (the so-called acta or praxeis), on the other. The exact semantic range of both labels is debated, but in any case the distinction does not capture the textual reality in its full complexity: even the predominantly narrative texts often contain an interrogation scene, whereas most so-called acta always have a narrative frame, however minimal it may be. In addition, there is no formal unity across the board. This chapter first addresses some of the intellectual premisses that in traditional scholarship on martyr acts were for a long time conducive of historical questions, much to the detriment of the study of these texts as narratives in their own right. The chapter then observes that many martyr acts recount not only the deaths of their protagonists but also cover (parts of) their preceding lives, and it explores how these texts adopt and adapt narrative and rhetorical protocols from traditional life-writing to shape the lives of their protagonists. Finally, attention is paid briefly to the thematic cluster of erotic love, desire, marriage, and the preservation of chastity that drives many such narrative elaborations. It is concluded that whereas research on these texts has long been driven by historical interests, they are also treasure-troves for scholars interested in narrative in general and life-writing in particular.


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