International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 04 | Apr 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 571 Plug-in based System for Data Visualization Omkar Desale 1 , Bhushan Patil 2 , Shweta Kathole 3 , Amrita Singh 4 , Prof. Umesh Mantale 5 1,2,3,4 BE Student, Dept. of Computer Engineering, Terna Engineering College, Maharashtra, India 5 Assistant Professor, Dept. of Computer Engineering, Terna Engineering College, Maharashtra, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract – Data Visualization is the combination of art and science. It is seen as a branch of descriptive statistics. Data visualization is a very new and promising field in software engineering. It is a graphical representation of the data that best conveys the complicated ideas clearly, precisely, and efficiently. Effective visualization helps users to analyze and reason about the data and evidence. It makes tedious data more accessible, understandable and usable. One of the main goals of data visualization is to give support in making quicker decision through appropriately designed graphically represented information. Sophistically-designed data visualization systems can greatly assist users with proper reasoning and decision making. Usually, visually presented data is easier to understand. This project’s main objective is to provide a plug-in software for data visualization, which is developed using plug-in based architecture and will be adaptable for future changes and updates. These plugins will Allow user to process on different types of files (excel, html, txt, csv etc.) Key words: Data Visualization, Plug-in architecture, Spring boot. 1. INTRODUCTION In today’s world it is very important and hard to interpret the huge chunks of data in the industry. Reading Data in the raw form is very tedious. So there has to be a better way to read this data. This Data visualization tool will help to read such data in better way understanding. Visualization can be considered as an excellent medium to analyze and share information.[1] The objective of this project is to create an easy and reliable system for Data Visualization, provide a plug-in architecture software which will be adaptable for future changes and updates, allow user to process on different types of files (excel, html, csv etc.), provide rich, interactive visuals, show the story of user’s data and make it easy to share insights, to give single-output file to download. Data visualization also helps in detecting problems perceiving trends and outliers and also point out absorbing in a large dataset [6]. 2. LITERATURE REVIEW Datawrapper : It is a web-based visualization tool which is used to create simple charts and maps for web articles. It allows user to insert xml, csv , xls files and provides multiple charts for visualization.[8] Tableau Software: - Tableau is a commercial tool used for data exploration; it uses interactive visual dashboards to represent data and facilitate the exploratory data analysis process.[7] The user can gain knowledge with their data, by creating charts, graphs, maps and many other graphics. RAW :It is a web-based tool that allows user to simply paste the data and visualize it in graphs. The Raw is based on the D3.js library, which makes the user to easily accessible, so that the non-programmers can also visualize it .[9] 3. SYSTEM ARCHITECTURE AND IMPLEMENTATION To build plug in based application it is required to have loose coupling between classes. Loose coupling can be achieved using interface. [5] The goal of the plugin is to read the data from different file formats. To achieve this, Reader Interface is created which has an abstract method call as Read(). Purpose of read method is to read data from file. Each plugin has to implement this Read() to read data from file and create the json string out of it, now whoever wants to build the plugin (jar) to read different file format will have to implement this reader interface and implement its read method. This method will now hold the logic to read the data from the corresponding file format Plugin will also have a metadata file (txt) file. Which will indicate which type of data it is able to read and which class is implementing the reader interface. Once plugin is ready it can be added into the application. Multiple plugins are available in the application so in order to maintain loose coupling between clients and all these different plugins Factory design pattern is used. When client/user uploads a file on to the application this Factory pattern identifies the file type and calls corresponding plugin. The output of this architecture is a JSON file which will be hosted as webservice. Different visualization patterns are presented to user on User Interface. By selecting those, user can visualize corresponding data and also can generate report. Framework : Spring boot IDE : Java Eclipse