As users interact with apps and apps, they create data. Applications often require access or save this data in order to function properly and provide the best possible user experience. This includes personal settings including media, as well as other documents. This data can be used to track clicks as well as product purchases made within the app. This data can be obtained in several ways, including by asking the user for it, assuming it based on their behavior on site, or purchasing it from an outside. The ideal customer data should be stored centrally and in a standard format to facilitate integration and exchange between applications. There are currently emerging customer data profiles that are standardized by industry sector to help define the data model to use to achieve this goal.
There are a variety of methods for storing data and the storage system used in an app will influence how the user interface is presented. File storage is the most common, where data is stored in folders and files that are arranged in a hierarchical fashion. Hard disk drives as well as cloud storage such as Google Drive or Microsoft OneDrive employ this method. Another method is block storage, in which the data is separated into blocks that can be stored anyplace on the storage infrastructure with identifiers that enable them to be easily located and then acted upon.
The early systems came with built-in tools that gave specific information on the properties of the storage medium in a textual format. Modern systems, such as Android and iOS, provide visualisations to support these functions, notably capacity/usage and duration. Visualisations of capacity/usage are typically horizontally http://virtuadata.net/ bar charts that are stacked. Lifespan charts are typically displayed as a circular pie graph or variants such as doughnut charts.