IOSR Journal of Business and Management (IOSR-JBM) e-ISSN: 2278-487X, p-ISSN: 2319-7668. Volume 22, Issue 9. Ser. V (September 2020), PP 20-25 www.iosrjournals.org DOI: 10.9790/487X-2209052025 www.iosrjournals.org 20 | Page An Analysis of Point of Sales (POS) Information Systems in SMEswith The Black Box Testing and PIECES Method Mardiana Andarwati 1 , Fikri Amrullah 2 , Elfirahmi Thamrin 3 , Ahmad Rofiqul Muslikh 4 1,2,4 (Faculty of Information Technology, University of Merdeka Malang, Indonesia) 3 (Faculty of Social and Political Sciences, University of Merdeka Malang, Indonesia) Abstract: Background: The role of SMEs is crusial in economic growth. To help them running their business, they need to use information system. The research objective was to test the functional level of the Point of Sales (POS) information system and to analyze the effectiveness of the POS information system. Materials and Methods: The research method tested the functional level of the system using the black box testing method and testing using the equivalent partitioning. The analysis of the effectiveness of the POS information system use the PIECES method. The analysis process was carried out by distributing questionnaires to 183 respondents about the effectiveness of the POS information system using six variables and testing the validity. Results: The results of functional test research using the black box testing method are very satisfying because the test cases that have been tested show that there is no interface that is functionally invalid or error. The results of measuring the effectiveness of the POS information system using the PIECES method on the aspects of performance, information, economy, control, efficiency, and service are effective. Conclusion:POS information system is in line with SMEs needs because it provides faster services in obtaining transaction receipts and sales report. Key Words: InformationSystem; Point of Sales;Black Box Testing;PIECES. --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 05-09-2020 Date of Acceptance: 20-09-2020 --------------------------------------------------------------------------------------------------------------------------------------- I. Introduction Retail sales are sales for end customers that are used for household needs for families and individuals. The retailing position is the distribution of the factory chain to the final consumer 14 .Eventhough Small and Medium Enterprises (SMEs) in the retail sector have an important role in supporting the economy in Indonesia, but they must also be balanced with the use of information technology to run their business. Information technology is specifically used to manage financial transactions and information. However currently the majority of SMEs businessmen process transactions and financial records in a conventional manner. Until now, 89% of SMEs businessmen in East Java, Indonesia use Point of Sales (POS) for transaction management and financial information management because the POS information system is an alternative business management for them, minimizing the risk of human error in business management and as a measure of total profit 13 . The problem is the functional level of the POS information system is not yet known, as well as the level of effectiveness of the POS information system with aspects of performance, information, economy, control, efficiency, and service on retail sales for SMEs. Finally, it discovers whether the POS information system is in accordance with the needs of SMEs businessmen in retail. So far, many SMEs do not know how much success the sales information system uses 1,2,11 . Based on the description above, this research conducts tests on the POS information system which is carried out through functional testing of the software interface whether it is in accordance with user needs. The testing uses the black box testing method as a software testing strategy that focuses on functionality and aims to find errors through specification-based testing. This method is used because the design and testing are independent of each other, the test is carried out from use, it becomes easier to test only on the application, this test does not require a programming language, and testers pay attention to the interface of the software used 2 . Black box testing or recognized as behavioral testing is a technique for testing software and is used to determine the functionality of application by focusing on the availability of expected inputs and outputs 9,17 and is used to determine the output based on the data entered in software regardless of what design and code was used. This method is to test whether the software is in accordance with the businessmen needs 7,10,12,18 and detect software failures so that failures can be repaired 4,8,9 . Black box testing focuses on system functions and types of testing, namely equivalence partitioning, boundary value analysis, cause effect graphing, decision table based