Data processing system, information terminal, data processing method, and non-transitory computer-readable storage medium storing data processing program

An information terminal that receives asset data from a server by establishing a connection to the server through a network, the information terminal comprising:

• a browser unit that receives asset data by communicating with the server through the network;
• and
• a terminal storage unit that stores asset data, identification information identifying the asset data, and version information for the asset data in association with one another, and includes a browser cache that is used by the browser unit and that stores identification information identifying asset data and version information for the asset data in association with each other;
• and a native cache that is provided separately from the browser cache and is managed independently of the browser unit and that stores asset data and identification information identifying the asset data in association with each other, wherein
• the information terminal:
• receives, before receiving asset data from the server, identification information identifying the asset data to be received and version information for the asset data, from the server;
• determines whether the received version information is stored in the terminal storage unit;
• requests, when the received version information is not stored in the terminal storage unit, the server to transmit the asset data associated with the version information;
• and
• does not request, when the received version information is stored in the terminal storage unit, the server to transmit the asset data associated with the version information.

A data processing method for an information terminal and a server connected to the information terminal through a network, wherein

• the server includes:
• a server storage unit that stores a plurality of asset data;
• and
• an updating unit that generates, along with an update to asset data, version information for the updated asset data,
• the information terminal includes:
• a browser unit that receives asset data by communicating with the server through the network;
• and
• a terminal storage unit that stores asset data, identification information identifying the asset data, and version information for the asset data in association with one another, and includes a browser cache that is used by the browser unit and that stores identification information identifying asset data and version information for the asset data in association with each other;
• and a native cache that is provided separately from the browser cache and is managed independently of the browser unit and that stores asset data and identification information identifying the asset data in association with each other,
• the server transmits, before transmitting asset data to the information terminal, identification information identifying the asset data to be transmitted and version information for the asset data, to the information terminal, and
• the information terminal:
• determines whether the received version information is stored in the terminal storage unit;
• requests, when the received version information is not stored in the terminal storage unit, the server to transmit the asset data associated with the version information;
• and
• does not request, when the received version information is stored in the terminal storage unit, the server to transmit the asset data associated with the version information.

A non-transitory computer-readable storage medium storing a data processing program executed by an information terminal that receives asset data from a server by establishing a connection to the server through a network, wherein

• the information terminal includes:
• a browser unit that receives asset data by communicating with the server through the network;
• and
• a terminal storage unit that stores asset data, identification information identifying the asset data, and version information for the asset data in association with one another, and includes a browser cache that is used by the browser unit and that stores identification information identifying asset data and version information for the asset data in association with each other;
• and a native cache that is provided separately from the browser cache and is managed independently of the browser unit and that stores asset data and identification information identifying the asset data in association with each other, and
• the data processing program causes the information terminal to:
• receive, before receiving asset data from the server, identification information identifying the asset data to be received and version information for the asset data, from the server;
• determine whether the received version information is stored in the terminal storage unit;
• request, when the received version information is not stored in the terminal storage unit, the server to transmit the asset data associated with the version information;
• and
• not request, when the received version information is stored in the terminal storage unit, the server to transmit the asset data associated with the version information.