Development of Signer Portal for Digital Products by Using Iterative Model at PT RST

The COVID-19 pandemic has affected the way people work, forcing people to reduce physical contact with other people. So, legalizing documents by adding a signature and stamp in PT RST now requires a new method. Electronic documents with the legalization using digital products become legal for use. Digital products for legalization include electronic stamps, signatures and seal stamps. Adding a digital product to a document is done on a web application that provides document legalization services. Currently adding digital products to web applications is only for one or two products, for example electronic stamps, so to be able to add 3 products we have to use 3 different web applications. This method makes the process of adding digital products done in many stages. Therefore, it is necessary to create a web application portal that combines all services such as e-stamp, e-sign and e-seal stamp in one application. The web-based portal is developed using agile software development methods. The development process is done iteratively in 3 iterations. The result of this research is a web-based portal that can provide services for adding e-materai, e-stamp and e-sign for oneself, other people and collaborate with several people. Furthermore, user satisfaction was measured with the SUS questionnaire and the usability measurement result was 80.3. This score is in the “Acceptable” acceptability range, acceptable with efficient use, easy to understand, and has a simple user interface. The signer portal development process for PT RST can be a reference for other industries to implement similar products in their organization, both in terms of technology and business processes.