Trading in the modern era currently uses a buying and selling system, not directly face to face but only with one finger and in one place, not limited by space and time, which is commonly referred to as buying and selling online and online transactions in one container, namely the website and very there are many types of marketplaces as long as technology continues to develop and changes in the quality of technology continue, in this study the author wants to analyze the Facebook Marketplace with the Delone and McLean method, which has problems such as vulgar advertisements that can be accessed by minors, the sale of goods-prohibited items and there are still many users who violate the rules and conditions set by the Facebook Marketplace. The purpose of this study is to identify and analyze these problems and also to find out which factors have the most influence on user satisfaction with the Facebook Marketplace. Based on the results of processing questionnaire data from the people of Jambi City, it was found that 4 of the 9 hypotheses that had a positive and significant effect were service quality to users, use to user satisfaction, use to net benefits and user satisfaction to net benefits.

A Purchase Order is a document ordering goods or services from a buyer to a supplier/supplier, almost all companies have a purchasing or purchasing department where the department will issue a goods ordering document or purchase order, the purpose of this writing is to make it easier for the purchasing or purchasing department team to distribute purchase order documents or purchase orders and store these documents digitally to make it easier to find these documents at a later date. in collecting data the author uses primary data, namely data obtained, collected and processed by the researcher directly from the subject or research object, the data collection method carried out by the researcher is carried out through: observation, interviews and participant observation. The results of the research are in the form of a web-based e-document application and distribution of purchase order documents to suppliers in a digital and structured manner so that it makes it easier for both parties to send information.

Human Resource Information System is an important part of human resource management in modern organizations. In an effort to increase the efficiency and effectiveness of HRIS, many organizations are turning to web-based solutions. This study aims to design web-based HRIS using the Waterfall method as its development life cycle. The Waterfall method is a linear and sequential approach to software development. The stages in this method include needs analysis, design, implementation, testing, and maintenance. By using this method, it is possible to identify user needs, analyze and design system architecture, implement web-based Human Resource Information System solutions and test the system as a whole. The result of this research is a web-based Human Resource Information System that allows efficient management of employee information, personal data, attendance, payroll and performance evaluation. This Human Resource Information System also provides easy accessibility via a web browser, allowing users to access the system from anywhere and anytime.

Kelurahan Kemanggisan is an institution under kecamatan Palmerah that regulates the rules and administration of RT and RW. Kelurahan Kemanggisan requires media to monitor the activities and administration carried out by residents to RT, RT to RW or vice versa. To determine the right type of media, the authors conducted a study. The method applied in the study is a qualitative data collection technique, which data is obtained from the side of kelurahan and residents. From the results of these techniques, the authors then grouped the data for the purpose of analyzing the problem with the fishbone problem analysis technique. The results of the analysis explain, that the main problem is something related to the activities and administration of citizens of RT and RW or vice versa. The data is not recorded in kelurahan Kemanggisan because the recording by RT and RW is still manual, namely by recording on paper. For this reason, the authors propose the right type of media for kelurahan in terms of monitoring is the existence of a digital dashboard. The data source comes from residents, RT and RW through mobile application media that they operate for the purpose of updating activities and administration. Digital dashboard visualizes data in the form of tables, graphs and maps. That way, the results of the visualization make it easier for kelurahan in terms of monitoring, this is indicated by the existence of accurate data sources in terms of residents, RT and RW.

PT Pos Indonesia (Persero) is a State-Owned Enterprise (BUMN), in 2018 in line with KD72/2018 concerning the Organizational Structure of PT Pos Indonesia (Persero) and KD.35/2018 concerning the Transition Period of Information and Technology Organizations, the IT function organization has smelting is carried out to enter the business unit for the core system, so a guideline is needed for information technology governance or IT management, which is currently decentralized. To be able to standardize the structure and operation of technology support in all overall company functions, including business, data, applications and technology, a simple study is needed in the form of a blueprint or company blueprint which consists of information technology management components so that it can provide an overview and steps steps to assist in formulating EAPOS which bridges business in harmony with IT governance at PT Pos Indonesia (Persero).

This study discusses the methods of encoding and decoding the base64 cryptographic algorithm. The term encoding means a process of converting plaintext into ciphertext. While decoding is a term that means the process of turning ciphertext back into plaintext. In general, classical cryptography has been abandoned because of its logic which can be easily solved, so now it has switched to modern cryptography which operates in bit-binary mode which is formed from ASCII code. The base64 algorithm is a form of modern cryptography which is included in the modern type of block cipher cryptography. This study aims to obtain a comparison between 3 types of tools in carrying out a cryptographic encode and decode process on the base64 algorithm. The 3 types of tools include the Base64 Python Program, Bash Base64 Kali Linux, and CyberChef which are online tools. This type of research method uses qualitative methods because it tends to use analysis in research. Where the results of the first comparison are used to make it easier to see the accuracy of the encoding and decoding processes and the results of the second comparison are used to compare in terms of time efficiency when encoding the three tools using 1,000 words which will continue to be added by 4,000 words, up to a total of 9,000 words . These words are taken using dummy text (lorem ipsum).

Database Management is the main job that is part of the development of Information and Communication Technology. Along with the very rapid development of the world of Information and Communication Technology, the data and transaction management system has also experienced developments in its management. In the information age like today, a database management system must be run in a computerized system so that data can be managed better and faster. One of the systems that requires computerization to run better is the payroll system. The purpose of this research is to develop a web-based payroll system that is able to be integrated with mail archive applications so that it can increase the effectiveness of calculating salaries from the work of employees. This study uses the Systems Development Life Cycle method, namely the stages of work carried out by systems analysts and programmers in building information systems and also methods in developing them. This payroll system will be easier and more efficient than the payroll system that has been running before. The results of this study are a payroll system that is integrated with a web-based mail archive application created using the PHP programming language for freelancer staff at CV Loka Media.

Information technology from time to time is growing rapidly and has become part of human life in this modern era, with these developments, websites have an important role, however, existing developments also have an impact on the security of a website, testing web servers is very important. important thing to do, this test aims to test whether the web server is safe or not from the crimes of hackers. Appropriate methods and techniques are needed to see possible vulnerabilities in components, libraries and systems that underlie web applications used in anticipating this, OWASP, Nikto, and Burp Suite tools can be used to test website security vulnerabilities. Each tool has differences in terms of speed or duration, results, or scanned objects. The research objective of this article is how to analyze a comparison of tools in testing website security vulnerabilities. Therefore, the results of detection or analysis of website vulnerabilities are then compared based on scanned objects, duration, and results to then suggest tools that are effective and efficient in their use.

Internet of Things (IoT) is a concept that connects electronic devices to the internet and enables the exchange of data between these devices. In this context, this study aims to develop an automatic door security control system using an ESP32 microcontroller-based e-KTP. The proposed system uses e-KTP as a substitute for a physical key on the door of the house. e-KTP will be connected to the ESP32 microcontroller which acts as the brain of the system. Personal data from the e-KTP, such as identity numbers, will be stored securely and used for user authentication. The ESP32 microcontroller will communicate with the server using the WiFi protocol to send and receive data. Users will be able to access the door of the house wirelessly via a mobile application connected to the server. This mobile application will provide an intuitive user interface to control door access and view security status. This system is also equipped with various security features. In addition, users can also monitor home security in real-time through a mobile application, even when they are not at home.

Query is the ability to display and or request data that is used to access data in the database system by using certain commands. Where a data obtained from one or more tables in the database according to what the user needs. The data can also interact with other data or tables with the aim of making it easier for the user to use it. The query response time is one of the considerations for testing databases. This journal will discuss two types of databases, namely MySQL (SQL) and MongoDB (NoSQL). Due to the increasing demand for data, data processors are competing to provide the right database with the best performance for applications or data processing. Then this journal provides a comparison analysis of MySQL and MongoDB databases in response time performance. This study uses the Query Runtime comparison execution test method between these databases. By using basic commands or DML queries, namely CRUD (Create, Read, Update, Delete). Several stages will be carried out, namely the determination of the dataset, implementation and testing, and analysis of the test results. In this study, trials were conducted on the insert, select, update, and delete processes with the data being tested were 100, 1000, 10000. After experimenting with MongoDB (NoSQL) and MySQL(SQL) databases. The MongoDB database has a faster query response time in the insert and delete process, for the query response time update and delete the MySQL database has a faster response time. Then it can be obtained that in query response time, the MongoDB database is superior in the update and delete processes with a runtime difference of 0.005 seconds and 0.017 seconds. MySQL database is superior in insert and select process with a difference of 4.137 seconds and 0.006 seconds.