Çağatay Kadir Aktaş, 030060176, 4th week

Multiple Views:
In traditional drawing pictures, an object is represented by a number of views in two dimensions. To represent a part completely, three views are often needed: plan view, front view and side elevations. In these views, the geometric and topological information is captured by viewing an object form directions. To master in multiple views, much training is needed. Mistakes in the drawing often occur. In computer-aided design, two-dimensional multi-view drawing is still widely used, in which the computer screen serves as sketch paper and the keyboard and mouse serve as a pencil. Many functions as erasing, reproducing and copying, traditionally considered as tedious and time-consuming, are now effectively supported in CAD systems. This obviously increases the draftsperson's productivity. However, some basic mental functions in developing these these multi-view drawings are still performed by the designer or draftsperson.
(Nanua Singh, Computer-Integrated Design and Manufacturing 1996, pg. 45)

Parts Explosion:
The process of determining gross requirements for component items, that is, requirements for the subassemblies, components and raw materials for a given number of end-items units is known as parts explosion. Therefore, parts explosion essentially represents the explotion of parents into their components.
(Nanua Singh, Computer-Integrated Design and Manufacturing 1996, pg. 409)

Grouping Efficiency:
Kumar and Chanrasekharan(1990) have developed an alternative quantitative criterion for evaluating the godness of block diagonal forms of binary matrices called group efficacy. This measure is particularly useful in the absence of information on the physical layout of machines in the cell and the cost og inter and intracellular material handling. An analysis of the grouping function reveals the following:

-An increase in intercell movements or voids or both will lead to a reduction in grouing efficancy
-Change in the number of exceptional elements has a greater influence than change in the number of voids in the diagonal blocks.
-At lower effiacacies the voids in the diagonal blocks become less and less significant.
It is worth mentioning here that the grouping efficancy based approach may yield a different cell configuration than that suggested by the cost model.
(Nanua Singh, Computer-Integrated Design and Manufacturing 1996, pg. 499)

FCFS(First-come, first-served):
In real-life dicrete-part manufacturing situations, the total number of jobs normally exceeds the number of work centers, resulting in a queue of jobs to be processed. To process the jobs in the queue, we need to develeop priority rules to determine the sequence in which to process the jobs on a work center. A number of a priority rules have been used in industry; and one of them is First-come, first-served rule assigns job on a first-come, first-served basis. This rule is ''blind'' with respect to all other important information such as due dates and urgent jobs.
(Nanua Singh, Computer-Integrated Design and Manufacturing 1996, pg. 425)