Website Development for a Local SME Using HTML, CSS, and JavaScript: A Case Study in Manado City

Authors

  • Immanuel Putra Kabuhung Universitas Sam Ratulangi
  • Mark Gosal Universitas Sam Ratulangi
  • Ade Yusupa Universitas Sam Ratulangi

Abstract

Abstract

The rapid advancement of digital technology has significantly transformed the business landscape; however, many small and medium enterprises (SMEs), locally known as Usaha Mikro, Kecil, dan Menengah (UMKM), particularly in Manado City, North Sulawesi, still lack a proper online presence. This study aims to design and develop a responsive business profile website for a local SME using HTML5, CSS3, and vanilla JavaScript as a cost-effective digital marketing solution. The development process adopts the Waterfall model, encompassing four sequential phases: requirements analysis, system design, implementation, and testing. The website features a homepage, a product and service catalog, a company profile section, and a contact page, all designed with responsive principles to ensure optimal viewing across mobile, tablet, and desktop devices. System validation was conducted using Black Box Testing to verify functional correctness, while usability evaluation was performed using the System Usability Scale (SUS) questionnaire with 20 respondents comprising SME owners and potential customers. Black Box Testing confirmed that all 10 defined functional test cases executed correctly without errors. Usability testing yielded an average SUS score of 84.5 out of 100, categorizing the system as Excellent. These results demonstrate that a lightweight static website built with fundamental web technologies constitutes a viable and effective digital presence solution for SMEs without substantial development costs, offering a replicable framework for similar contexts across developing regions of Indonesia.

Keywords: Website Development; SMEs; HTML; CSS; JavaScript

Author Biographies

Mark Gosal, Universitas Sam Ratulangi

An undergraduate student of Informatics Engineering at Sam Ratulangi University, Manado, Indonesia.

Ade Yusupa, Universitas Sam Ratulangi

A lecturer in Informatics Engineering at Sam Ratulangi University, Manado, Indonesia.

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Published

2026-10-29