J-NODE - In an activity on arrow (AOA) schedule, the node at the end of the activity arrow. (June 2007) JOB - A group of contiguous operations related by similarity of functions that can be completed by one or more workers without interference or delay. (June 2007) JUDGMENTAL SAMPLING - A procedure of selecting the sample which is based on specific criteria established by sample designers. The selection of priced items and outlets is not a probability sample - that is, it is not based on random chance. (November 1990) JUNIOR FLOAT - The lowest free float of all preceding activities. (March 2010) JUST-IN-TIME - A 'pull' logistical system driven by actual demand. The goal is to produce, provide or deliver parts or supplies just in time for the next operation. The approach reduces stock inventories or storage costs but leaves no room for error. As much a managerial philosophy as it is an inventory system. (June 2007)