Processing tree structure having breadcrumb root node

A computer program product, comprising a computer readable hardware storage medium having a computer readable program code stored therein, said computer readable program code containing instructions executable by a processor of a computer system to implement a method, said method comprising:

• after a first task node has been generated in a tree structure at a breadcrumb root node in the tree structure in response to receiving a request for visiting a first web task associated with a website, and in response to sequentially receiving requests for multiple subtasks of the first web task, sequentially establishing in the tree structure, by the processor, multiple subtask nodes of the first task node, wherein the subtask nodes of the multiple subtask nodes of the first task node are respectively associated with the subtasks of the multiple subtasks of the first web task and are sequentially connected to the first task node according to a sequential order of the sequentially received requests for the multiple subtasks of the first web task;
• and
• after said sequentially establishing in the tree structure the multiple subtask nodes of the first task node, said processor processing the multiple subtask nodes of the first task node based on a policy of the first web task, wherein said processing the multiple subtasks nodes of the first task node comprises said processor responding to a user's click on the tree structure of at least one subtask node of the first task node, by invoking at least one web page associated with the at least one subtask node and sending the at least one web page to the user's client,
• wherein said processing the multiple subtask nodes of the first task node based on the policy of the first web task comprises dynamically reconfiguring the multiple subtask nodes of the first task node in response to the user's visitation of one or more subtask nodes of the multiple subtask nodes of the first task node, said dynamically reconfiguring avoiding one or more repetitive operations during performance of the first web task, and
• wherein said avoiding one or more repetitive operations comprises:
• prohibiting the first web task from being performed repeatedly during a visit to the website;
• in response to the first web task having been completed, setting both the first task node and the multiple subtask nodes of the first task node into a read-only mode;
• and
• in response to said setting both the first task node and the multiple subtask nodes of the first task node into the read-only mode, setting a web page associated with the first task node and web pages associated with the multiple subtask nodes of the first task node into the read-only mode.

A computer system comprising a processor and a computer readable memory unit coupled to the processor, said memory unit containing instructions executable by the processor to implement a method, said method comprising:

• after a first task node has been generated in a tree structure at a breadcrumb root node in the tree structure in response to receiving a request for visiting a first web task associated with a website, and in response to sequentially receiving requests for multiple subtasks of the first web task, sequentially establishing in the tree structure, by the processor, multiple subtask nodes of the first task node, wherein the subtask nodes of the multiple subtask nodes of the first task node are respectively associated with the subtasks of the multiple subtasks of the first web task and are sequentially connected to the first task node according to a sequential order of the sequentially received requests for the multiple subtasks of the first web task;
• and
• after said sequentially establishing in the trey:
• structure the multiple subtask nodes of the first task node, said processor processing the multiple subtask nodes of the first task node based on a policy of the first web task, wherein said processing the multiple subtasks nodes of the first task node comprises said processor responding to a user's click on the tree structure of at least one subtask node of the first task node, by invoking at least one web page associated with the at least one subtask node and sending the at least one web page to the user's client,
• wherein said processing the multiple subtask nodes of the first task node based on the policy of the first web task comprises dynamically reconfiguring the multiple subtask nodes of the first task node in response to the user's visitation of one or more subtask nodes of the multiple subtask nodes of the first task node, said dynamically reconfiguring avoiding one or more repetitive operations during performance of the first web task, and
• wherein said avoiding one or more repetitive operations comprises:
• prohibiting the first web task from being performed repeatedly during a visit to the website;
• in response to the first web task having been completed, setting both the first task node and the multiple subtask nodes of the first task node into a read-only mode;
• and
• in response to said setting both the first task node and the multiple subtask nodes of the first task node into the read-only mode, setting a web page associated with the first task node and web pages associated with the multiple subtask nodes of the first task node into the read-only mode.