Schedule mock interviews on the Meeting Board, join the latest community discussions in our Consulting Q&A and find like-minded Case Partners to connect and practice with!
Back to overview

What are typical operations cases (aka process improvement case) ?

Are there specific frameworks/rules to know for handling an operations oriented case ? 

Thank you

5 Answers
15.6k Views
36
Be the first to answer!
Nobody has responded to this question yet.
Top answer
Vlad
Coach
on Apr 11, 2018
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Originally answered question: Operations case?

Hi,

There are several types of operational cases that you may have:

1) Operational math problems. (e.g. Should we increase the speed of the elevator or just buy a second one? How should we reduce the queues? How should we increase the output of a factory?).

Structuring:

  • Usually, you have to look at the process. Even the most complicated systems have the inflows and outflows

The key concepts that you have to learn:

  • Capacity and utilization (both machine and people)
  • Cycle time, Throughput time, Little's Law
  • How the does lowest cycle time influence the production? (Lead time = cycle time of the slowest process)
  • How can we mitigate the bottlenecks with low cycle time? (Buffer, Parallel process, speeding up)

2) Cost cutting cases

Structuring:

  • What is the cost composition and what are the biggest costs
  • Benchmarking of the biggest costs to find the improvement potential
  • Process improvements to meet the benchmarks
  • Costs and benefits of the proposed initiatives

The key concepts that you have to learn:

  • Internal / external benchmarking
  • Idle time
  • Core processes (usually are optimized) and the supporting processes (usually are cut)
  • Math structures (Frequency of operations * time per operation)
  • Other useful structures (e.g. people - process - technology)

Feel free to reach me for further help with these cases.

Best

Sidi
Coach
on May 09, 2018
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 400+ candidates secure MBB offers
Originally answered question: Types of operational issues

Hi Anonymous,

well - in principle, "Operations" transform resources (or data inputs) into desired goods, services, or results, hence creating value to recipients (mostly: customers). Two or more connected operations constitute a process, and are generally divided into four basic categories:

(1) processing,

(2) inspection,

(3) transport

(4) storage

For each of these categories, efficiency is name of the game. This means that either the output is maximized (given certain resource inputs), or resource input needs are minimized for a desired output.

So for example for processing, operations problems can cover yield improvement problems, while for inspection, there might be the topic of automation (hence reducing input resource needs). And so on. You can draw a whole landscape of problems.

Cheers, Sidi

Anonymous
on May 23, 2017

Hi,

In consulting, especially strategy consulting - there are a few basic frameworks that you use and then build on. For example when looking at process improvement you need to show you understand current company situation - so setting context and then what the challenge it is facing, finally finishing off with recommendation. 

As simple and basic as this sounds, you need to practise analysis and show you understand the industry, competition and market which adds 'colour' to your answers and helps you stand out as a canidate.

Hope this helps, let me know if you have any other questions or want to practise.

4
on Aug 23, 2017
what are these frameworks Victoria?
Anonymous
on Jul 27, 2017
Originally answered question: Root cause analysis / driver trees

Hi Nadir,

Could you give me an example of a case where you saw that?
I think I know what you mean, but want to make sure I'm not misunderstanding you.

Best,
Paulo

1
Vlad
Coach
on May 09, 2018
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School
Originally answered question: Types of operational issues

Hi,

There are several types of operational cases that you may have:

1) Operational math problems. (e.g. Should we increase the speed of the elevator or just buy a second one? How should we reduce the queues? How should we increase the output of a factory?).

Structuring:

  • Usually, you have to look at the process. Even the most complicated systems have the inflows and outflows

The key concepts that you have to learn:

  • Capacity and utilization (both machine and people)
  • Cycle time, Throughput time, Little's Law
  • How the does lowest cycle time influence the production? (Lead time = cycle time of the slowest process)
  • How can we mitigate the bottlenecks with low cycle time? (Buffer, Parallel process, speeding up)

2) Cost cutting cases

Structuring:

  • What is the cost composition and what are the biggest costs
  • Benchmarking of the biggest costs to find the improvement potential
  • Process improvements to meet the benchmarks
  • Costs and benefits of the proposed initiatives

The key concepts that you have to learn:

  • Internal / external benchmarking
  • Idle time
  • Core processes (usually are optimized) and the supporting processes (usually are cut)
  • Math structures (Frequency of operations * time per operation)
  • Other useful structures (e.g. people - process - technology)

Feel free to reach me for further help with these cases.

3) Bottleneck cases (e.g. Huge write-offs in the meat store or bottleneck on the bridge)

Structuring:

You draw a value chain and go through it to find a bottleneck.

E.g. for the meat write-offs it will be:

  • Supplier issues (packaging, meat quality, warehousing)
  • Transportation (Length, fridges)
  • Store (Refrigerators in the warehouse, in-store fridges, demand for meet)

Best

Similar Questions
Consulting
What to ask in clarifying question and what to ask during the interview?
on Aug 26, 2024
Global
4 Answers
500+ Views
Top answer by
Hagen
Coach
#1 recommended coach | >95% success rate | most experience in consulting, interviewing, and coaching
56
4 Answers
500+ Views
+1
Consulting
What happens once you graduate from McKinsey OEP program?
on Jun 01, 2024
Global
1 Answer
500+ Views
Top answer by
Florian
Coach
1400 5-star reviews across platforms | 500+ offers | Highest-rated case book on Amazon | Uni lecturer in US, Asia, EU
24
1 Answer
500+ Views
Consulting
Time to apply and the intake for new hire?
on Feb 29, 2024
Global
7 Answers
5.0k Views
Top answer by
Florian
Coach
1400 5-star reviews across platforms | 500+ offers | Highest-rated case book on Amazon | Uni lecturer in US, Asia, EU
172
7 Answers
5.0k Views
+4
How likely are you to recommend us to a friend or fellow student?
0 = Not likely
10 = Very likely
You are a true consultant! Thank you for consulting us on how to make PrepLounge even better!