Mobile Framework for Real-Time Database Management

Sammanfattning: The primary purpose of this thesis is to explore what issues may arise during development of a framework for handling and display of streamed real-time data. In addition to this, it also investigates how the display of different types of data, along with a change of execution platform, impacts execution time. Through the undertaking of two case studies, each split into developmental and an experimental phases, the thesis goes through the development of such a real-time data handling framework. The framework was developed in both stationary and mobile forms, and the developmental issues encountered along each of these paths are highlighted. Afterwards, the results gathered from performance tests run on each framework version were compared, in order to ascertain whether the handling and display of different data types, along with a change in execution platform, had had an impact upon the frameworks execution time. The results from the developmental observations revealed that the most commonly encountered issues were those relating to program latency, commonly due to sub-optimal program architecture along with connectivity issues encountered during data streaming. The second most encountered issue regarded the choice of an appropriate display method, in order to communicate changes in the displayed data along with correlation between several tracked data points. The results from the experimental comparisons revealed that while the impact on execution time caused by the use of calculated data, as opposed to raw data values, was marginal at most, a change of execution platform impacted said time drastically. By porting the framework to the mobile platform, the different processes whose execution time were measured during the tests experienced an increase in execution time ranging from 2405% all the way to 15860%. The authors recommend that the framework be developed towards gaining the ability to connect to any given relational database, and to handle and display the data therein, in order for it to have application areas other than as a test instrument. Further, the authors also recommend that additional tests be run on the framework using a wider variety of stationary and mobile devices, in order to determine whether the conclusions drawn from the results in the thesis hold up in the face of greater hardware variety.