Cooking Recipe is a culinary element that often attracts culinary lovers. A cooking recipe is a guidance for preparing the ingredients, how to cook and serve the dish. The collection of recipes which documented in the printing media have not been able to meet the needs of culinary lovers with high mobility. This study aims to develop an Android-based recipe application to meet the culinary lovers need of a technology for storing recipes collection that can be accessed easily. We apply the  Luther multimedia development method, which consists of the concept, design, material collecting, assembly and testing phases. The Android platform will provide the recipe application features, and the website platform will provide the content management features for managing the contents in the recipe application. The result of black box testing on the application shows that the features in the recipe application perform according to the expected concept and design. For the future research, to improve the application performance, we will build social media features for the members and a data mining system for processing big data from the recipe collection to produce valuable information.

Today, technology is rapidly developing in various elements and kinds of society. Withthe use of technology makes the human mindset that manifests into modernization. Thecampus is one place where the student's education to develop the potential that existed to givebirth to students who are creative, crisis, responsible and moral, especially for students. With theuse of campus introduction technology to students will facilitate the learning process. One of theutilization of technology that is now widely used is android.One of them features Android LBS(Location Based Service) is one of the android features used to describe the technology used tofind the location of the device that the user by utilizing satellite facilities. One of the problems ofthe students is the lack of information about the room at Informatics Engineering, University ofPalangkaraya which relates to the subjects in Informatics Engineering. By utilizing the featureLBS (Location Based Service) on android will answer the existing problems so as to facilitatestudents Engineering University of Palangka Raya.The methodology used in development with Prototype According to Pressman, which hasstages of Communication and early data collection, Quick design, Formation of prototype,Evaluation of prototype, Repair prototype and Final Production. At this stage of analysis is madeFlowchart. At this stage of design also made the creation of Unified Modeling Language (UML).The programming languages used are Java, JSON, SQLite.Application of Space Presentation Faculty of Engineering, University of PalangkarayaBased Location Based Service is designed and built using a Prototype Pressman method, withmap plan designed through Google Earth Pro and Edraw Max 7 which is placed on Google MapAPI where data storage is made in online database Firebase and SQLite as local database withthe development of the application created using Android Studio.Implementation of LocationBased Services on Application of Space Presentation Faculty of Engineering, University ofPalangkaraya Based Location Based Service, which applies to the Google Map API with eachpoint of the room made marker that produces radius which varied where if an application userenter into each radius it will produce notification information room containing the subjects thatare in the room so that the lecture-related rooms can be known.

The recording of student attendance aims to monitor the student attendance quantity and educate students to be disciplined. Student attendance records that are currently done manually on the paper can be improved to increase the quality of the attendance data processing, service quality and system in the School. This study aims to build an Attendance application based on Android platform that can be used on the teacher's mobile device. Waterfall is the method which is used to develop the attendance application in this study. Then, to ensure the application performance, the attendance application will be tested by the blackbox testing method. The test results using the blackbox testing show that the features in the attendance application perform according to its purpose. This attendance application can facilitate the homeroom teacher to carry out the student attendance recording process daily and to create the student attendance data recapitulation.

Searching is one of the important features on the website, but it is not uncommon for users to make typos when typing keywords. Typing errors of these keywords is usually referred to as typo. This study aims to build a system by providing suggestions for correcting typos in the search feature. Keywords search correction are obtained using the Damerau-Levenshtein Distance Approximate String Matching algorithm by to calculate the editing distance of each word in a keywords with each word in the Indonesian word dictionary. Testing was carried out as many as 40 experiments, with 10 keywords and 250 articles taken randomly. The test results show the Damerau-Levenshtein Distance algorithm is able to provide precision and recall values of 91.24% and 89.58% in providing keyword improvement suggestions. With the improvement of the system, each trial increases with precision value of 0.80 and recall value of 0.98.

The designed online class is used to provide additional values to the learning process in theDepartment of Informatics Engineering of University of Palangka Raya. It basically does notreplace the entire learning process because the learning process is thus far implemented in theclassroom. Yet,the application of online classroom provides extra features, such as creating writtenmaterials directly on the web and uploading the materials in PDF or PPT which then can beobtained directly by students on the web. Students can upload their given assignments on the web aswell; therefore the lecturers no longer need to bring a stack of printed reports or papers of thestudent assignments.Modeling application of online class in this research aims at applying UML-based WebEngineering method (UWE) apart from waterfall engineering method which is often taught to thestudents of Department of Informatics Engineering of University of Palangka Raya.The result of this research shows that the website program on online class can be implementedby the lecturers and students majoring in Informatics Engineering by applying model application ofUML-based Web Engineering method (UWE).