Control chart presentation ratish t
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This document describes a study conducted at TAFE Tractors Division in Bangalore to analyze vehicle turnaround times (VTAT) at a supplier plant. The study aimed to understand current performance, identify deviations, and generate control charts to monitor vehicle unloading times. SAS code is provided to create an individual moving range control chart plotting the unloading duration for each vehicle serial number against the sample number. Steps for generating control charts in SAS are outlined, including creating a data set with process and sample variables, selecting the appropriate chart and variables, and computing control limits directly from the data.
Control chart presentation ratish t
- 1. Facilitator: Dr. James Daniel Paul Professor – VIT Business School VIT University – Chennai. By Ratish T Student – VIT Business School, VIT University – Chennai.
- 2. ? The project is taken as a part of the course work and the data used to implement the control charts are the data collected form the study conducted at TAFE, Tractors Division, Bangalore during an Internship Period to improve the Vehicle Turn Around Time(VTAT) of supplier vehicles reaching the plant for unloading the material.
- 3. ? To understand the situation and performance of different vehicles in unloading performance. ? To identify the deviation so that the constrained area or the areas of improvement could be identified. ? To generate a control chart to monitor the performance of the vehicles entering the factory for unloading the materials.
- 4. data vtat; input sno $ duration @@; label sno = "Serial Number"; datalines; TN49R3745a 19 KA406956a 11 KA52A018a 5 TN49R3745b 1050 KA52A018b 900 KA406956b 11 TN49R3745c 2918 TN49R3745d 160 KA406956c 375 KA52A018c 814 KA406956d 45 ; run; title 'Individual moving Range Chart'; title2 'Time taken for Reporting to G1'; proc shewhart data=vtat; irchart duration*sno; run;
- 5. The graph is the process of Reporting to G1. Here the vehicle numbers of different vehicles are in the horizontal axis and the duration or the time taken for the process in the vertical axis.
- 6. The graph is for the process of G1 to Store Reporting
- 7. The graph is for the process of Store to Dock.
- 8. Process of Dock to Unloading
- 9. Process of Unloading to Exit
- 11. ? Create a SAS data set, with variables a) the process variable (in this case, the duration), and b) the sample label (in this case, vehicle number or S.no). ? Choose Solutions, Quality Improvement, Control Charts. ? For the Active Data Set, choose the appropriate data set from the Work library, in this case WORK.VTAT. ? For Type of Control Chart, choose Mean and range charts. ? For Process variable, choose diameter. ? For Subgroup variable, choose the sample label, in this case, time. ? Since in this case we are creating the preliminary control chart using the preliminary data sets, for Method of Establishing Control Limits, choose Compute from the data…. ? Click Run, print the Graph window. Steps Involved in the Process