82% of my students land consulting offers
Stop piecing together random resources. Get everything in one place: a step-by-step case interview course from a former Bain interviewer.
Author: Taylor Warfield, Former Bain Manager and Interviewer

Digital transformation case interviews are becoming much more common at consulting firms. You'll need to know how to solve them if you're interviewing at firms such as McKinsey Digital, BCG Platinion, or Bain's technology practice.
I’m a former Bain Manager and interviewer and in this guide, I’ll teach you exactly how to approach these cases.
But first, a quick heads up:
Learning case interviews on your own can take months.
If you’re looking for a step-by-step shortcut to learn case interviews quickly, enroll in my case interview course and save yourself 100+ hours. 82% of my students land consulting offers (8x the industry average).
A digital transformation case interview asks you to help a company adopt new technologies to improve their business. These cases focus on how technology can solve business problems, not just on the technology itself.
You might be asked questions such as:
The key thing to understand is that digital transformation cases are still business cases. You're solving a business problem that happens to involve technology.
Digital transformation cases have three main differences you need to understand.
1. Technology is central to the solution
In traditional cases, technology might come up as one consideration among many. In digital transformation cases, evaluating the right technology and how to implement it is core to solving the case.
You'll need to understand how different technologies work at a basic level. You don't need to know how to code, but you should know what AI, cloud computing, and automation can and cannot do.
2. Implementation is more important
Traditional strategy cases often end with a recommendation about what to do. Digital transformation cases require you to think through how to actually implement the technology.
You'll need to consider questions such as:
3. The time horizon is different
Digital transformation takes time. You can't flip a switch and suddenly have a company running on new technology. Your recommendations need to account for gradual rollouts, testing phases, and iterative improvements.
Before you can solve digital transformation cases, you need to understand a few basic technology concepts.
Cloud Computing
Cloud computing means storing and accessing data and programs over the internet instead of on physical servers or computers the company owns.
The main benefits are lower upfront costs, easier scalability, and faster deployment. Companies don't need to buy expensive hardware or hire large IT teams to maintain it.
The main concerns are data security, ongoing subscription costs, and dependence on the cloud provider.
Artificial Intelligence and Machine Learning
AI refers to systems that can perform tasks that normally require human intelligence. Machine learning is a subset of AI where systems learn and improve from experience without being explicitly programmed.
Common business applications include:
AI works best when you have large amounts of clean data and clearly defined problems to solve.
Automation and Robotics
Automation uses technology to perform tasks with minimal human intervention. Robotics process automation uses software robots to handle repetitive digital tasks.
Common uses include:
The main benefit is freeing up employees to focus on higher-value work. The main concern is potential job displacement.
Internet of Things (IoT)
IoT refers to physical devices connected to the internet that collect and share data. Examples include smart sensors in factories, GPS trackers on delivery trucks, or connected medical devices.
IoT enables real-time monitoring, predictive maintenance, and better decision-making based on actual usage data.
Big Data and Analytics
Big data refers to extremely large datasets that can reveal patterns and insights when analyzed. Analytics is the process of examining this data to draw conclusions.
Companies use data analytics to:
The value isn't in having data but in using it to make better decisions.
You will need a structured approach to solve digital transformation cases. There are six steps to solving any digital transformation case interview.
1. Understand the Business Problem First
Start by clarifying what business problem you're trying to solve. Don't jump straight to technology solutions.
Ask questions such as:
2. Assess Current State
Understand where the company is starting from before you recommend where they should go.
Consider these questions:
3. Evaluate Technology Options
Once you understand the problem and current state, consider which technologies could help.
Think through:
4. Analyze Implementation Feasibility
Technology only works if you can actually implement it. Consider the practical realities.
Key areas to examine include:
5. Consider Change Management
Digital transformation fails more often due to people issues than technology issues. Think about how to get the organization on board.
Important factors include:
6. Evaluate Expected Impact
Finally, assess whether the transformation will actually deliver value.
You may need to calculate:
Having the right framework makes digital transformation cases much easier to solve. Here are the most effective frameworks you can use.
1. The Technology Value Chain Framework
This framework breaks down technology implementation into discrete steps to identify where the company should focus.
The five stages are:
Use this framework when a case involves leveraging data or analytics. It helps you think systematically about the entire data pipeline, not just one piece.
2. The Digital Maturity Framework
This framework assesses how ready a company is for digital transformation. Evaluate the company across four dimensions:
Use this framework when you need to assess whether a company can successfully implement a digital transformation.
A company might have great technology ideas but lack the infrastructure, skills, or culture to execute them. This framework helps you identify gaps before recommending solutions.
3. The Build-Buy-Partner Framework
This framework helps you decide how a company should acquire technology capabilities.
Three options exist:
A. Build: Develop technology in-house with your own team
B. Buy: Purchase existing software or acquire a company with the technology
C. Partner: Collaborate with a technology company or platform
Use this framework when the case asks how a company should acquire specific technology capabilities.
For example, if a bank needs a mobile app, should they build it themselves, buy off-the-shelf banking software, or partner with a fintech company? Consider costs, speed, control, and strategic importance.
4. The Customer Journey Digitization Framework
This framework identifies opportunities to improve customer experience through technology.
Map the customer journey through five stages:
Use this framework when a case focuses on using technology to improve customer experience.
For each stage, ask: Where is friction? Where do customers drop off? What technology could make this smoother?
5. The Process Automation Framework
This framework helps identify which processes to automate for maximum impact.
Evaluate processes across four criteria:
Use this framework when a case asks which business processes to automate.
Score each process on these four factors. Processes that score high on all four are your best automation candidates.
6. The Technology Risk Assessment Framework
This framework identifies potential risks before implementing technology. There are four risk categories to assess:
Use this framework when you need to evaluate whether a technology recommendation is too risky.
For each risk, assess:
High probability and high impact risks need strong mitigation plans before you proceed.
7. The Phased Rollout Framework
This framework helps you plan a gradual technology implementation instead of a risky "big bang" launch.
Structure implementation in four phases:
Use this framework when the case involves implementing new technology across a large organization.
How to Choose the Right Framework
Don't force a framework that doesn't fit the case. Choose based on what the case is asking:
You can also combine frameworks. Start with Digital Maturity to assess readiness, then use Build-Buy-Partner to decide on acquisition strategy, then use Phased Rollout to plan implementation.
The best candidates adapt frameworks to the specific case rather than rigidly following a memorized structure.
If you are finding this article helpful, you’ll love my step-by-step case interview course. 82% of students who get an interview land a consulting offer. Join 3,000+ users who mastered case interviews in as little as 7 days while saving yourself 100+ hours of headache.
You'll see a few recurring themes in digital transformation cases.
Legacy System Replacement
These cases ask you to help a company replace outdated technology with modern systems. The classic example is a bank still running on mainframe computers from the 1970s. They want to move to modern cloud-based systems.
Key considerations:
Customer Experience Enhancement
These cases focus on using technology to improve how customers interact with the company. Examples include launching a mobile app, building a self-service portal, or personalizing the website experience.
Key considerations:
Operational Efficiency
These cases ask how technology can make operations faster, cheaper, or better. Examples include automating manual processes, using IoT sensors to predict equipment failures, or using AI to optimize inventory.
Key considerations:
New Business Model
These cases explore how technology enables entirely new ways of doing business.
Examples include launching a subscription service, creating a digital marketplace, or using data to create new revenue streams.
Key considerations:
Follow these steps to get ready for digital transformation case interviews.
Learn Basic Technology Concepts
You don't need to become a software engineer, but you should understand how common technologies work and what they're used for.
Read articles about AI, cloud computing, automation, IoT, and data analytics. Focus on business applications, not technical details.
Practice Technology Cases
Do at least 5-10 practice cases that involve technology or digital transformation.
You can find these in case books, online case databases, or by asking friends to give you cases. The more you practice, the more comfortable you'll get.
Study Real Digital Transformations
Read about companies that have successfully transformed digitally.
Understand Implementation Reality
Talk to people who have actually implemented technology projects.
They'll tell you about challenges that never make it into case interviews. This real-world perspective will help you ask better questions and make more realistic recommendations.
Practice Explaining Technology Simply
Being able to explain technical concepts in simple terms shows deep understanding.
Practice explaining cloud computing, AI, or automation to someone with no technical background. If you can make it clear and simple, you understand it well enough.
Here's an example of how to approach a digital transformation case.
The Case
A regional grocery chain with 150 stores wants to compete with Amazon Fresh and online delivery services. They've asked you to help them develop a digital strategy. Should they launch an e-commerce platform and delivery service?
How to Approach It
Start by understanding the business problem and current situation. You may want to ask:
Create a framework to evaluate this decision:
1. Market Attractiveness
2. Competitive Position
3. Implementation Feasibility
4. Financial Analysis
Work through the case by analyzing each area.
For market attractiveness, you might find that online grocery is growing 20% annually but only 15% of their customers have tried online grocery shopping. This suggests potential but also risk.
For competitive position, maybe they have strong local brand recognition and existing customer relationships, but competitors have better technology and more delivery drivers.
For implementation, they'll need to build or buy an e-commerce platform, integrate it with their inventory system, hire drivers, and set up delivery logistics. This could take 12-18 months.
For financials, estimate costs of $10M to build the platform and $3M annually for ongoing operations. Estimate it might capture $20M in revenue at 5% margin in year one, growing to $50M by year three.
Based on this analysis, you might recommend starting with a partnership with an existing delivery platform like Instacart rather than building everything from scratch. This reduces risk and lets them test demand before committing to a full build.
Ready to stop struggling and start landing consulting offers?
Enroll in my step-by-step case interview course:
Join 3,000+ candidates who've landed offers at McKinsey, BCG, Bain, and other top firms. 82% of my students land consulting offers.
👉 Enroll Now