Collaboration system including a spatial event map

A system comprising:

• a server node including a processor and a communication port, the server node being configured with logic:
• to establish a link to a client node;
• to send, to the client node, at least part of a log of entries to identify events in a workspace, the workspace comprising locations having coordinates, the events identified by the entries in the log being related to graphical targets having coordinates within the workspace, wherein an entry in the log, which identifies an event, comprises data specifying coordinates of a location within the workspace of a graphical target related to the event, a target identifier of the graphical target related to the event to be displayed on a display of the client node, data identifying an action selected from a group of actions including creation, movement and deletion of the graphical target within the workspace, and a time of the event;
• to send data to the client node to allow the client node to, in dependence on the log of entries, map a displayable area on a display linked to the client node to a mapped area within the workspace,
• wherein the log of entries sent to the client node identify locations within the mapped area;
• to send data to the client node to allow the client node to, in dependence on the log of entries, display graphical targets identified by the identified events onto the displayable area, wherein the sent log of entries includes at least one entry for an event that identifies a creation action, and at least one entry for an event that identifies a movement action;
• and
• to receive messages, from the client node, based upon created events at the client node, the events being created at the client node upon acceptance of input data, related to movement and creation of graphical targets displayed within the displayable area, from a user input device.

A non-transitory computer-readable recording medium having instructions recorded thereon, the instructions, when executed by one or more processors, causing the one or more processors to perform operations comprising:

• establishing a link from a server node to a client node;
• sending, from the server node to the client node, at least part of a log of entries to identify events in a workspace, the workspace comprising locations having coordinates, the events identified by the entries in the log being related to graphical targets having coordinates within the workspace, wherein an entry in the log, which identifies an event, comprises data specifying coordinates of a location within the workspace of a graphical target related to the event, a target identifier of the graphical target related to the event to be displayed on a display of the client node, data identifying an action selected from a group of actions including creation, movement and deletion of the graphical target within the workspace, and a time of the event;
• sending data to allow the client node to, in dependence on the log of entries, map a displayable area on a display linked to the client node to a mapped area within the workspace,
• wherein the log of entries sent to the client node identify locations within the mapped area;
• sending data to allow the client node to, in dependence on the log of entries, display graphical targets identified by the identified events onto the displayable area, wherein the sent log of entries includes at least one entry for an event that identifies a creation action, and at least one entry for an event that identifies a movement action;
• and
• receiving, at the server node, messages from the client node based upon created events at the client node, the events being created at the client node upon acceptance of input data, related to movement and creation of graphical targets displayed within the displayable area, from a user input device.