Extreme Programming(XP) dapat diterapkan untuk membangun aplikasi pengelolaan surat keterangan kependudukan,agar surat dapat dikelola untuk didokumentasikan dan dilakukan rekapitulasi laporan, karena pengelolaan surat pada saat ini rentan rusak atau hilang. Rancang bangun perangkat lunak menyesuaikan tahapan pada XP. Perencanaan dan perancangan yang dilakukan untuk menghasilkan pengkodean yang kemudian diujikan menggunakan black-box. Pengujian dilakukan pada fitur aplikasi untuk mengelola surat seperti menyimpan data maupun mencetak untuk keperluan pada kantor lurah Rantau Pulut,dan menunjukkan bahwa fungsionalitas dapat sesuai dengan hasil yang diharapkan. Aplikasi yang dibangun dapat diimplementasikan dengan menerapkan metode XP.  Extreme Programming can be applied to build management application of certificate so that the letter can be managed to be documented and done report recapitulation because the management of the letter are vulnerable to damage or disappear. Software design adjusts the stages in extreme programming. Planning and design is done to generate the coding which is then tested using black-box. Tests are performed on existing features of the application to letter manage as to save or print to necessities  at Rantau Pulut village office and show that the functionality can match the expected results. Applications built can be implemented by applying the Extreme Programming method.

Dynamic Systems Development Method (DSDM) can be used as one of the methods in developing and building applications based on the needs and communication of users and developers such as in developing Population Data Application In Rantau Pulut Village. Such as data collection through interviews as one form of communication between developers and users. This research aims to build population applications in Rantau Pulut Village as a solution of data processing both in terms of storage and reporting that can help the processing of data needed to become more effective and efficient as well as a solution for the current system running. Through the stages of DSDM conducted and produce applications that can run in accordance with user needs, especially in terms of reporting generated by the application so that users feel user friendly

Game is one of the applications that are favored by children. Not a few parents who allow their children to use a smartphone with various reasons such as so that children do not interfere with work, so that children do not neglect, and various other reasons. However, sometimes smartphones are misused only for playing games by children, so the time that should be used for learning is instead used for playing games only. So that the game does not only waste the child's time in vain, then built a game application for children based on the genre of fighter and education in the game of hero against monsters accompanied by mathematics learning. The features provided in the application are 4 types of questions such as addition, subtraction, multiplication, and division as well as 6 levels of problem difficulty level. By this basic level math game it can be an alternative in learning while playing games through smartphones. This game is able to be a fun learning media in learning mathematics for game users.

Augmented Reality is one of technology that combines virtual world objects with the real world that allows it to be applied to Android-based smartphones because its users have penetrated into the realm of children. The need for analysis and design before building applications that later can help facilitate teachers in learning by displaying 3D objects and animations that make Students more interested in paying attention to the material provided and becoming more active in participating in the learning process. The purpose of this study is to analyze and design learning applications for Butterfly metamorphosis using Augmented Reality as an alternative learning media. Methods of collecting data are literature, observation, and interviews. The results of this study are in the form of application design regarding the metamorphosis phase of Butterflies ranging from caterpillars, larvae, pupae, to cocoons.

Perancangan aplikasi berbasis mobile android untuk memudahkan pembangunan aplikasi melalui gambaran dalam bentuk diagram dan sketsa digital untuk monitoring kesehatan Ibu hamil pada Bidan praktik mandiri. Perancangan ini sebagai salah satu tahapan dalam membangun aplikasi dengan permasalahan dari pengolahan data saat ini hanya menggunakan buku besar yang dimiliki Bidan sebagai media pencatatan riwayat kesehatan Ibu hamil untuk monitoring yang dilakukan oleh Bidan. Perancangan aplikasi ini dikhususkan untuk Bidan sebagai penggunanya. Aplikasi dirancang untuk sistem yang berjalan dan sistem yang akan dibangun dalam bentuk diagram konteks. Penggambaran rancangan interface dalam bentuk sketsa digital menggunakan tools Balsamiq Mockups 3 dengan akses yang memudahkan Bidan disertai fitur seperti hak akses login, input data, dan penyimpanan data yang digunakan untuk monitoring kesehatan Ibu hamil.