OPM Flashcards
What is the 4Vs?
Volume, variety, variation, visibility
How many/which layout types are there?
4 - Fixed, function cell, line
What is transformed resources?
Materials, information, customers
What is transforming resources?
People, facilities (technology, buildings etc.)
What is performance objectives?
Cost, dependability, speed, quality, flexibility
Lean operations?
Perfect quality, exact when needed, exact quantities, exact where required, at lowest possible cost
Resilience?
The ability of a system to return to its original state after being disrupted by an unforeseen incident
Little’s law?
Throughput time = Work in progress * Cycle time
Utilization?
Utilization = process rate / arrival rate
What influences how the processes needs to be managed?
The 4V’s - volume, variety, variation, visibility
What happens if you increase volume, reduce variety, variation and visibility? (Specialization)
You most likely will see a reduce in cost
What should the operation strategy reflect?
The requirements of the business’s markets
Operations strategy objectives will change depending on…?
The stage of the business’s services/product
The process of operations strategy involves…
formulation, implementation, monitoring and control
The design of any process should be governed by the…
volume and variety it is required to produce
Process types indicate the position of processes on the…
volume-variety spectrum
The different layout have different…
volume-variety characteristics
The design of any process should be judged on its…
quality, speed, dependability, flexibility, cost and sustainable performance
What should you do to avoid bottlenecks?
Allocate work equally to each stage in a process
What impact does variability have on utilization?
Variability results in waiting time and resource under-utilization
What happens in the supply chain when demand fluctuates?
Progressively amplified
The bullwhip effect can be reduced by…
information sharing, aligning planning and control decisions, improving flow efficiency and better forecasting
What is capacity?
Capacity is the maximum level of value-added activity over a period of time that the process or operation can achieve under normal operating conditions
Describe scale-effect
Scale-effect is when the operating cost reduced as the capacity increases, and all types of operations have scale effects
Diseconomies of scale?
Increases operating costs above a certain level of capacity
Capacity management decision should reflect both…
predictable and unpredictable variations in capacity and demand
When should you have inventory?
When its advantages outweigh its disadvantages
What does pull control do?
Reduces the build-up of inventory between processes or stages
Planing and control activity is a major input to reduce/prevent…
Bottleneck processes and activities
Focusing on synchronous flow exposes sources of…
waste
Simple, transparent flow exposes resources of…
waste
Performance improvement is the ultimate objective of…
operations and process management
Performance impovements almost always benefits from…
continous improvement
What is the iron triangle?
Quality, cost, time
The difficulty of managing a project is a function of its…
scale, complexity and uncertainty
