Flexible store fulfillment

An order fulfillment system comprising:

• at least one device configured to communicate with a task management system and including software components that implement business processes of a selected predefined fulfillment workflow from a plurality of predefined fulfillment workflows, each predefined fulfillment workflow including a plurality of predefined common business processes, each common business process including at least one task, wherein the at least one device is a portable device configured to display instructions to a user to direct the user to perform actions associated with the business processes of the selected predefined process workflow according to the instructions displayed on the portable device, and
• wherein the task management system is configured to:
• transmit a first signal that causes the at least one device to display an instruction to the user of the at least one device to perform a first task of a first group of tasks associated with the plurality of predefined common business processes of a first selected predefined fulfillment workflow, wherein the first signal causes the at least one device of the user to generate a graphical user interface that displays the first task of the first group of tasks,
• detect a location of the at least one device of the user while the user performing the first group of tasks associated with the plurality of predefined common business processes of the first predefined fulfillment workflow;
• determine, based on the detected location of the at least one device of the user, that the user is located such that the user is available to perform a first task of a second group of tasks associated with the plurality of predefined common business processes of a second predefined fulfillment workflow;
• and
• in response to this determination by the task management system, transmit a second signal to the at least one device to display an instruction to the user of the at least one device to interrupt the first group of tasks associated with the plurality of predefined common business processes of the first predefined fulfillment workflow, and to perform the first task of the second group of tasks associated with the plurality of predefined common business process of the second predefined fulfillment workflow, wherein the second signal causes the graphical user interface to not display the first task of the first group of tasks and to display the first task of the second group of tasks.