This research will discuss the analysis of the design and manufacture of website-based e-certificate applications using the Object Oriented Programming (OOP) method. The main problems that underlie this research are the waste in the use of paper and the cost of printing certificates, as well as the difficulty of distributing certificates to participants for every activity held in an agency. In addition, another problem is the number of fake certificates from activities that have been held and the difficulty of checking the authenticity of these certificates. Therefore, we need an application that can facilitate the making of certificates without having to be printed conventionally, assist in distributing certificates from activities that have been held to activity participants, as well as in checking the authenticity of certificates. For making applications using the OOP method with tools Unified Modeling Language (UML) as a tool in designing applications. The results achieved from this research are a website-based e-certificate application that will be used to print certificates digitally (paperless), distribute e-certificates from every activity organized by an agency, and check the authenticity of certificates using QRCode technology.

The Community Learning Activity Center (PKBM) is a non-formal education unit that provides educational services for people in need. Currently PKBM uses face-to-face learning methods in classrooms, so it is not optimal for learning citizens because interaction with tutors can only be done in the PKBM environment. On the other hand, e-learning technology can make it easier for PKBM tutors / teachers in implementing learning because learning can be done anytime and anywhere according to the abilities of the teaching participants. The main objective of this community service activity is to provide training in the use of cloud-based Moodle e-learning for PKBM tutors / teachers. The implementation methods consist of: (1) Needs Analysis; (2) CloudMoodle implementation; (3) Preparation of Training Materials; (4) Data Collection of Prospective Training Participants; (5) Creating PKBM Tutor / Teacher Accounts; and (6) Evaluation and Reporting. The training was attended by 31 participants from 10 PKBM institutions. The training material is delivered interactively with materials including: (i) a general explanation of the Moodle application; (ii) learning material management training; and (iii) Value management training. Based on the results of the evaluation, the training activities were well organized based on the feedback given by the participants in terms of three aspects: (i) the participants' understanding of the training material; (ii) providing training; and (iii) training resource persons.