Abstract: A method, computer program product, and system for accessing versioned data objects within a database, comprising creating a first new connection to a database stored in a memory, receiving a first query from a first client that requests access to a versioned data object stored in the database, and modifying the received first query to add contextual information configured on the first new connection, so that the modified first query is able to retrieve a first version of the versioned data object that corresponds to the contextual information.

Abstract: A method, computer program product, and system for accessing versioned data objects within a database, comprising creating a first new connection to a database stored in a memory, receiving a first query from a first client that requests access to a versioned data object stored in the database, and modifying the received first query to add contextual information configured on the first new connection, so that the modified first query is able to retrieve a first version of the versioned data object that corresponds to the contextual information.

Abstract: Management information for plural video calls is presented through a user interface that displays a list of calls prioritized based on one or more parameters, such as alarms, so that the most important calls are prominently displayed as they need attention. An alarm tracker tracks alarms associated with video device parameters, such as jitter, latency and linearity, and an alarm priority module determines the priority of video calls for display by comparing the alarms associated with the video calls. In one embodiment, the user interface has a locking option to lock a call's display position, for instance when a particularly important call with a lesser number of alarms nonetheless has a need for closer monitoring.

Abstract: An element order independent comparison of hierarchically organized data structures may be performed efficiently using a transformation operation that orthogonally and recursively encodes child node information. In some implementations, a hash table is defined for which values are encoded as powers of two. Each value is therefore orthogonal when combined using simple binary addition. At any particular node, a concatenation of node-specific information with a sum of child-node hashes is, itself, hashed and associated with the node. Orthogonal encodings ensure that a combination (e.g., an additive combination) of values corresponding to elements of a sub-hierarchy is insensitive to ordering of the elements. Recursion can be employed to fold in information contributions at successive layers of an information hierarchy.

Abstract: Management information for plural video calls is presented through a user interface that displays a list of calls prioritized based on one or more parameters, such as alarms, so that the most important calls are prominently displayed as they need attention. An alarm tracker tracks alarms associated with video device parameters, such as jitter, latency and linearity, and an alarm priority module determines the priority of video calls for display by comparing the alarms associated with the video calls. In one embodiment, the user interface has a locking option to lock a call's display position, for instance when a particularly important call with a lesser number of alarms nonetheless has a need for closer monitoring.