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No due date•0/1 issues closedThe mobile app from stage I should be enhanced with an ability to store data about tracked products in the local memory of a mobile device. All operations on products (adding new products, increasing amount, decreasing amount and removing) should now be available regardless of the availability of a network connection. Single user can run the mobile app on multiple devices (e.g. on a smartphone and on a tablet). Each device can store app data in its local memory and can be used offline to modify the local data. Because of that it is necessary to design a data synchronization algorithm that can handle concurrent modification of data on multiple devices. The information stored on the server side should resemble the actual quantity of products in stock regardless of the order of modifications of data on different mobile devices and regardless of the order in which those devices were synchronized with the server. Mobile devices may experience prolonged periods of network connection unavailability. During the time frame between local data modification and successful synchronization with the server the same data may be modified on another device or by a different user. Synchronization algorithm should handle possible data conflicts without misrepresenting the data. During the presentation of this stage at least two instances of the app should be showcased (e.g. using two instances of an emulator). For the ease of presentation synchronization should be triggered by a button or a menu item in the mobile app.
Overdue by 7 year(s)•Due by December 17, 2018•7/7 issues closed