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Revision Chapter 3a on Lecture Note and MultiTypes of Flow Units.xlsx

Revision Chapter 3a on Lecture Note and MultiTypes of Flow Units.xlsx

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Unformatted text preview: 1 Product-Process Matrix (a) Process on left or right of the Natural Line of Product-Process Matrix are either less Process flexibil (b) Manufacturing ops process types are of high volume and low variety Example: Job Shop are make-to-measure tailor process where the process produce series o Job Shop is multi-types of flow units such as the application screening Example: Batch Process are components of car in batches where the process requires speci (c) Service ops process types are of low volume and high variety 2 Utilisation (a) Formula: Utilisation = Flow Rate/ Capacity = Ans % (b) Utilisation < 100% (c) Two Types of Utilisation: Process Utilisation = Flow Rate / Process Capacity Resource Utilisation = Flow Rate / Resource Capacity (d) Bottleneck has the lowest processing rate but has the highest utilisation 3 Implied Utilisation (a) Formula: Implied Utilisation = Total Demand / Available Capacity = Total Workload/ Available Cap (b) Available Capacity is aka Processing Rate (c) Implied Utilisation can be more than 100% and the highest implied utilisation is the bottleneck either less Process flexibility or more Process flexibiluty than is required, thus have high (excess) operating cost e process produce series of product each differs in its needs ation screening the process requires specialised skills with changeover at each stage like doors and headlights Workload/ Available Capacity = Total Requested Capacity/ Available Capacity tion is the bottleneck perating cost Given in Q Method 1: Flow Unit is one Generic Application B C D = (C/B) * 60min Product Flow Activity Product Mix File Contact persons Contact employees Grade/school analysis Confirmation letter Number Activity of Available Capacity Time (mins) Workers (apps/hr) Consulting 3 20 15 8 2 1 2 3 2 1 20 6 12 15 30 1 1 1 0 1 Staf 1 0 1 0 1 Method 2: Flow Unit is one Minute of Work B C D = C * 60min Product Flow Activity Product Mix File Contact persons Contact employees Grade/school analysis Confirmation letter Number Activity of Available Capacity Time (mins) Workers (mins/hr) Consulting 3 20 15 8 2 1 2 3 2 1 60 120 180 120 60 1 1 1 0 1 Staf 1 0 1 0 1 Lim Winston: Implied Utilisation = Total Workload/ Available Capacity E.g. H7 = H$6 * E7 K Requested Capacity (applications/hr) oduct Flow Interns 1 0 0 1 1 Consulting 3 3 3 3 0 3 Staf 11 11 0 11 0 11 Interns 4 4 0 0 4 4 Total 18 18 3 14 4 18 E.g. H20 = H$19 * E20 * $B20 K Requested Capacity (minutes/hr) oduct Flow Interns 1 0 0 1 1 Consulting 3 9 60 45 0 6 Staf 11 33 0 165 0 22 Interns 4 12 0 0 32 8 Total 18 54 60 210 32 36 E = K/ D Implied Utilization 90% 50% 117% 27% 60% Implied Utilitsation = Total Demand Rate/ Available Capacity Lim Winston: Bottleneck is the act Bottleneck? whose resource capa is the lowest (i.e. (based on highest implied utilisation) utilisation rate). This also form the proces capacity <-- bottleneck Lim Winston: Every Hour, the entire process would receive consulting, 11 staff an internship applications E = K/ D Implied Utilization 90% 50% 117% 27% 60% Bottleneck? (based on utilisation) <-- bottleneck For cell H20 to J20, as product flow indicate a types of flow unit will undergo file activity, hence, the cell contain 11, 4 CUM multiple b activity time respect m Winston: lied Utilisation = al Workload/ ilable Capacity lied Utilitsation = al Demand Rate/ ilable Capacity Lim Winston: Bottleneck is the activity whose resource capacity is the lowest (i.e. highest implied utilisation rate). This will also form the process capacity Lim Winston: Every Hour, the entire process would receive 3 consulting, 11 staff and 4 internship applications. For cell H20 to J20, as product flow indicate all 3 types of flow unit will undergo file activity, hence, the cell contains, 3, 11, 4 CUM multiple by activity time respectively Given in Q Method 1: Flow Unit is one Generic Application B C D = (C/B) * 60min Product Flow Activity Product Mix File Contact persons Contact employees Grade/school analysis Confirmation letter Number Activity of Available Capacity Time (mins) Workers (apps/hr) Consulting #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! Staf Lim Winston: Implied Utilisation = Total Workload/ Available Capacity E.g. H7 = H$6 * E7 K Requested Capacity (applications/hr) oduct Flow Interns Consulting Staf Interns 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 E = K/ D Implied Utilization #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! Implied Utilitsation = Total Demand Rate/ Available Capacity Lim Winston: Bottleneck is the act Bottleneck? whose resource capa is the lowest (i.e. (based on highest implied utilisation) utilisation rate). This also form the proces #DIV/0! capacity #DIV/0! #DIV/0! #DIV/0! #DIV/0! Winston: lied Utilisation = al Workload/ ilable Capacity lied Utilitsation = al Demand Rate/ ilable Capacity Lim Winston: Bottleneck is the activity whose resource capacity is the lowest (i.e. highest implied utilisation rate). This will also form the process capacity ...
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