Patent ID: 8533816

Claim:
A method comprising: a processor creating at least one securement rule defining at least one authorization for modifying a user interface element of a scene; the processor defining in a file a security policy that includes the created at least one securement rule in the security policy; and the processor assigning the security policy including the at least one securement rule to the user interface element of the scene, wherein the security policy comprises a list of pairs including each of the at least one securement rule paired with different portions of identification information, the identification information defining a plurality of sources capable of updating the scene during a rendering of the scene; wherein the security policy is operable for use in determining whether to allow or prohibit an update of the user interface element requested by a source by determining whether the source is included in the security policy, such that: when it is determined that the source of the update request is not included in any of the different portions of the identification information in the security policy then the update is prohibited, such that the update is prohibited based only on the determination that the source of the update request is not included in any of the different portions of the identification information in the security policy, and when it is determined that the source of the update request is included in at least one of the different portions of the identification information in the security policy, then the update is allowed when: it is verified that one of the portions of the identification information in which the source of the update request is included is paired with a securement rule which authorizes a modification action to be used for implementing the update.