The work contains presentation of the Geocaching game, mainly from the view of an information system. It contains study of existing applications with their advantages and disadvantages. There is a specification of new application, that should solve major disadvantages of existing products in second part of the work. Design of such application, that meets the requirements, follows. The application is implemented, which is described in following chapters, with the aim to target specific problems that were solved during the implementation. There is summary and future plans cotained in the closing chapter.

This diploma thesis deals with desing and implementation of order management system in restaurant facilities. The main goal was to create a cross-platform mobile application that allows users to order items through web REST API. System will then distribute these orders to facility staff. The system verifies authenticity of orders by using unique dynamic QR codes.

This work deals with the development of cross-platform mobile applications and compares cross-platform development frameworks. First the mobile devices market is defined and its dominant platforms are described. The main objective is to compare the frameworks with defined criteria. The theoretical part analyzes the mobile market and defines the different types of mobile devices. Further, describes the various mobile platforms, including its architecture and de-velopment environment. Subsequently, the approaches to cross-platform development are described with their individual frameworks. In the practical part the selected frameworks are compared to defined criteria and subse-quently evaluated.

The aim of the thesis is to analyse framework IONIC and determine the suitability of this framework for cross-platform mobile development. The intent of the theoretical part is to analyse the current market, introduction to the mobile development and a description of the framework IONIC and related technologies. The practical part deals with the analysis and design mobile application PowerFLOW, describing the implemented mobile application and sample code. The last part is about framework IONIC evaluation based on set criteria. The evaluation rating was determined on the experience gained during the implementation of mobile application PowerFLOW. There are also listed personal experience of the implementation. Based on this thesis the IONIC can be recommended as the framework for cross-platform mobile development.

This thesis deals with development of multiplatform mobile applications. Part of the thesis is the design and implementation of a mobile application to facilitate the orientation of people in a large university environment. The application is designed for Android and iOS mobile operating systems and is implemented in the Ionic development environment. The application provides basic information about individual buildings of the university, displays buildings on the map and allows the user to navigate these buildings.

Purpose of this thesis is to design system to support agile software development in virtual teams. Agile development methodology and some available tools to support it are listed here in this thesis, in order to use the system in a wide range of devices, theoretical analysis of multi-platform application development options are listed. The following sections describe the design and implementation witch using web technologies. At the end the system is demonstrated on model situation and extension its designed.

The goal of the thesis is to analyse the Xamarin.Forms framework and implementing an application based on it. Visual Studio was used as an development environment. External libraries Skia.Sharp, Prism, Acr.UserDialogs, sqlite-net-pcl and rda.SocketsForPCL were used. More than 90% of the application code is shared among all platforms. The application is multilingual and able to keep persistent data. Supported operation systems are Android and Windows 10 covering mobile and desktop devices. The main benefit of the thesis is clarification of the Xamarin.Forms framework principles demonstrated by developed application.

Title: Multi-platform Multiplayer RPG Game A multi-platform game, which would be able to run on various devices with Windows 8.1 and Windows Phone 8.1 systems, was created in this work. It was supposed to be a universal game client executable on desktop PCs, notebooks, tablets or mobile phones. The game was supposed to be role-playing game (RPG) with focus on turn-based action combat. In this work, a 3D scene renderer was written which supports rendering simple scenes with objects and animated characters. A cross-device communication library based on bluetooth technology was implemented in this project as well. This communication library allows two game clients running on two different types of devices to communicate with each other. Then a server-client communication library was created. This library was then used to implement a game server which offers online gaming feature.

Title: Multi-platform Multiplayer RPG Game A multi-platform game, which would be able to run on various devices with Windows 8.1 and Windows Phone 8.1 systems, was created in this work. It was supposed to be a universal game client executable on desktop PCs, notebooks, tablets or mobile phones. The game was supposed to be role-playing game (RPG) with focus on turn-based action combat. In this work, a 3D game engine was written which supports rendering simple scenes with objects and animated characters. The engine was developed using DirectX. The engine was written in .NET C# using SharpDX library. A cross-device communication framework based on bluetooth technology was implemented in this project as well. This communication framework allows two game clients running on two different devices to communicate with each other.

The diploma thesis answers set questions that relate to two different distribution environments, the two options for developers to directly offer their mobile applications to the end users. Distribution is being conducted in the App Store and Google Play application stores, where only such applications that oblige basic requirements can be released and provided to customers. The requirements, official sources of information and support services of the two providers are analyzed in the theoretical part of the thesis. Processes revolving around the application distribution itself are described in the following practical part. Distribution consists of processes from the developer account registration to submitting the application for a review or a check. Sufficient knowledge base could be gathered not only due to a proper exploration of the issue, but also due to an actual application release accomplished by the author. A cross-platform mobile application to be released has been developed solely for the purposes of this diploma thesis. The application has been built in two platform specific versions. Whilst publishing it, an emphasis was laid on keeping the conditions as similar as possible to achieve viable case study results. The application release represents the case that produced all data that enabled a direct comparison and overall evaluation of the different developer settings at the end of the thesis. Findings and conclusions of this thesis can be used by developers and other interested parties that are looking for an integrated source of information that regards releasing a cross-platform mobile application on iOS and Android platform.