Scheduling In Mass Continuous
Scheduling In Mass Continuous and Project Type Production System
The scheduling aspects mentioned so far have been concerned with job shop ( open and closed shop) type of production, in the main. It has been mentioned earlier that for a mass assembly line production ( or continuous type), the planning problem in both the time horizons intermediate and short term is one of setting the rate of production from the line and arranging the various production centre on the line accordingly. Line balancing would be useful in equalizing the output rates from the several work points on the mass production line and in decreasing the idle time of labor. Not like the job order situation here the production control activity does not contain maintaining an uninterrupted flow of the identical items as they go through the number of operation on the assembly process line. It is such as seeing that a stream of water flowing via a system of channels does not get logged at any place.
In a project type of production system, where one complex unit or item is to be produced involving a number of operations many of them to be done one after the other in a sequence dictated by technology or limitations of resources hence the product developing its shops and getting values added as the time flows the network analysis techniques such as PERT/CPM are quite useful in scheduling monitoring and control of production. While in a continuous or line production the flow is with respect to space in the project type production the flow in with respect to time.
Techniques of Loading and Scheduling
a)Bat chart b)Gantt chart c)Line of balanced)CPM/PERT