e-ISSN: 2582-5208 
                         International Research Journal of  Modernization in Engineering  Technology and Science 
                         Volume:03/Issue:03/March-2021            Impact Factor- 5.354                                           www.irjmets.com                                                                                                                                                                                                                                                                                          
                                     INVENTORY MANAGEMENT SYSTEM USING MOBILE APPLICATION 
                                                                                       *1                            *2                                    *3                                   *4
                           *1           Mr. Sampath Kumar S  , Gowtham S  , Ajay Desigan K  , Hari Prasath V   
                             Assistant Professor, Department of Computer Science and Engineering, Sri Eshwar College of Engineering, 
                             *2                                                           Coimbatore, TamilNadu, India.
                                Department of Computer Science and Engineering, Sri Eshwar College of  Engineering, Coimbatore, 
                                     *3                                                          TamilNadu, India. 
                                       Department of Computer Science and Engineering, Sri Eshwar College of Engineering, Coimbatore, 
                                     *4                                                                 TamilNadu, India. 
                                       Department of Computer Science and Engineering, Sri Eshwar College of Engineering, Coimbatore,  
                                                                                                        TamilNadu, India. 
                                                                                                           ABSTRACT  
                         Nowadays in small scale businesses Inventory maintenance and  the balance sheet management is done only 
                        through  papers  .Inventory  Management  System (IMS)  is  a  piece  of  software  that  assists  enterprises  that  run 
                        hardware stores in keeping track of sales and  purchases. This  project  streamlines  the  process  by  streamline 
                        eliminating  paperwork, human errors, and manual delays. The Inventory Management System will be able to 
                        monitor sales and available inventory, as well as inform shop owners when it's time to reorder and how much to 
                        buy. Inventory Management System is a Mobile application that focuses on inventory control and creates the 
                        various  necessary  reports  for  maintaining  profit  and  losses.  Both  profit/losses  and  remaining  stocks  can  be 
                        managed together by anyone with just a mobile phone even at any scale  of business. 
                        Keywords: Inventory Management System, Cloud backup, Mobile application, Balance sheet information, Real time 
                        updation using cloud computing.                                            I.  INTRODUCTION  
                        Inventory management system (IMS) is a mobile application that allows small-scale vendors to keep track of their 
                        surviving stock and balance sheets. Because there are so many stocks in inventory, manual labour is more complex 
                        and prone to human error. It's still tricky to keep track of the inventory's available stocks. A separate accountant is 
                        also required for calculating profit and loss based on sales. Large-scale vendors can do it, but small-scale vendors 
                        cannot. Because many small-scale suppliers do not have a dedicated computer for inventory management, our 
                        inventory management software was created as a mobile application to address this issue. 
                                                                                                                                                                   
                        Many small businesses in India do not have access to computers. Due to a lack of personal computers, a desktop 
                        application cannot be useful for economically capped sellers. As a result, as a mobile application, it can be useful in 
                        resolving many small-scale vendor issues across the world. It will be extremely beneficial, particularly in countries 
                        like India. Data can be updated in real time because we've integrated cloud computing into our application. As a 
                        result,  different  users  can  access  our  inventory  management system application  at the same time. One of the 
                        biggest disadvantages in paperwork is storing data in a safer way. As it is a digital application it is very easy to store 
                        and recover data by using cloud storage.                                  
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                                                                                                                                                                               e-ISSN: 2582-5208 
                         International Research Journal of  Modernization in Engineering  Technology and Science 
                         Volume:03/Issue:03/March-2021            Impact Factor- 5.354                                           www.irjmets.com                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                     
                        We've built a profile-based system into our app, so even a single user can manage multiple businesses by creating 
                        multiple profiles. We introduced user access control since it is a cloud-based application, so apart from admin 
                        users,  other  users  cannot  access  all  data.  As  a  result,  data  security  is  preserved.  The  inventory  management 
                        methodology is more effective in determining the optimal inventory level and solving problems such as safety stock 
                        and lead time. In response to the growing challenges faced by most small scale vendors, inventory management has 
                        become highly established. 
                                                                         II. METHODOLOGIES IN INVENTORY MANAGEMENT SYSTEM 
                        A. EXISTING METHODS 
                        Small  scale  vendors  face  problems  managing  the  stocks  and  storing  the  data.  Physically  maintaining  data  is 
                        tiresome and at times hard for back-up or retrieval of data. To maintain the huge stocks in a notebook is out of time 
                        and  more  importantly  are  prone  to  various  damages.  Inventory  costs  have  a  significant  effect  on  the  firm's 
                        profitability and success. The identification of key success factors and making the right choices at the right time are 
                        essential for inventory management and optimised decisions. In order to improve the outcome of the inventory 
                        function in a volatile market environment, it is important to concentrate on decision-making and the factors that 
                        influence  decision-making.  The  survey  method would  shed light on the factors,  which contain a great deal of 
                        skewed data. The use of scientific techniques to test the factors' impact on inventory decisions should help to 
                        increase the reliability of the factors used as key variables in decision making. As a result, the current study focuses 
                        on  two  dimensions:  identifying  factors  impacting  inventory  optimization  among  small  scale  vendors,  using  a 
                        structured and unstructured questionnaire, grouping them into two sets as internal and external variables, and 
                        optimising the information for adequate decision-making. 
                                                                                                                                                                                      
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                                                                                                                                                                               e-ISSN: 2582-5208 
                         International Research Journal of  Modernization in Engineering  Technology and Science 
                         Volume:03/Issue:03/March-2021            Impact Factor- 5.354                                           www.irjmets.com                                                                                                                                                                                                                                                                                          
                        B. PROPOSED METHOD 
                              ●  Users can handle their balance sheets in the application in a secure and convenient manner since the 
                                     application performs all of the calculations. 
                              ●  Hard copies of data are vulnerable to physical harm, and restoring them is a time-consuming operation. To 
                                     address this issue, we introduced a cloud backup solution, which allows us to access data from any device 
                                     at any time. 
                              ●  Calculation of profit and loss by hand is a time consuming process in order to solve this problem, our 
                                     framework will perform the calculations for the user. 
                              ●  It is important to keep track of commodity prices in order to maintain steady growth in a market, but this 
                                     is not an easy task. It's simple to keep track of product prices now that we've introduced a price timeline 
                                     function. 
                              ●  Due to the integration of cloud computing technologies into our framework, multiple workers can access 
                                     and update data in real time. 
                              ●  Even though cloud storage technologies are used in our project, the data is still stored locally on the 
                                     computer, allowing you to access the data even if your network connectivity is weak. 
                              ●  Since it's a smart phone application, it's portable, and you can keep track of your business from anywhere. 
                                                               III. MODULES IN INVENTORY MANAGEMENT SYSTEM 
                        A. AUTHORIZATION MODULE 
                        The authorization module is in charge of user login and account registration. Through using Google Login, all of our 
                        application's login operations are managed by Google Cloud Console, which also provides a security token. 
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                        B. IN MODULE 
                        Input activity comes under IN MODULE. In module handles all the  data  entered by the user and saves it in the 
                        database. 
                                                                                                                                                        
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                                                                                                                                                                               e-ISSN: 2582-5208 
                         International Research Journal of  Modernization in Engineering  Technology and Science 
                         Volume:03/Issue:03/March-2021            Impact Factor- 5.354                                           www.irjmets.com                                                                                                                                                                                                                                                                                          
                        C. OUT MODULE 
                        Output activity comes under OUT MODULE. The Out module handles displaying all the saved data to the user 
                        through Out activity. 
                         
                        D. CAL MODULE                                                                                                                 
                        Cal Activity comes under CAL MODULE. All the codes necessary for calculation of data comes under the cal module. 
                        E. DB MODULE                                                                                                              
                        DB MODULE is responsible  for storing the data in both local databases and backing up to the cloud storage. 
                        DB MODULE internally contains two sub-modules: BACKUP MODULE and RESTORE MODULE. 
                                                                                        IV. RESULT AND DISCUSSION                                                                                           
                        The inventory management system is a mobile application that uses Oauth for authentication, SQ lite for database, 
                        cloud computing for real-time updates, and cloud storage for data backup and recovery. In light of the mobile 
                        application, this paper raises an alert about the bill's information portion. It's a simple smart phone application that 
                        connects to the cloud so that information can be refreshed in the store for confirmation. It's a safe programme that 
                        ensures no details from the stockroom leaks out. Furthermore, it gives the one table an organized appearance so 
                        that we know what we sold at the end of the month. This usually entails adding the production of freshly purchased 
                        products to inventory totals while deducting the most recently sold goods to buyers. The current study's next step 
                        would be to put the results of demand forecasts, safety stock, and reorder points into simulation software to get 
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