Drift Velocity Formula: Definition, Derivation and Worked Examples
The drift velocity formula is v = I/(nqA). Learn each variable, the derivation, the mobility form, a worked copper wire example and practice problems.
Read MoreA case analysis is a structured paper that examines a real or realistic scenario, identifies the core problem, evaluates possible solutions with evidence and a framework such as SWOT or root cause analysis, and recommends a specific course of action. Unlike a summary, it argues for a decision and explains how to carry it out. The two original examples below show what that looks like in practice.
This guide explains how a case analysis differs from a case study, lays out the standard format, and walks through the analysis step by step. It then gives two short, original example case analyses, one business and one nursing, followed by an outline template, a grading checklist and the most common mistakes.
The University of Southern California's research guide describes case analysis as "a problem-based teaching and learning method that involves critically analyzing complex scenarios" in an organizational setting (USC Libraries). It is common in business, nursing, social work, education and public administration, and most cases have more than one defensible answer.
Harvard Business School, where the case method is central to the MBA, says each case is written from the viewpoint of a real person leading a real organization and "ends in a key decision to be made." Students must sift through information that is "incomplete by design" and decide what they would do (HBS). A guide from the Simmons University Writing Center, adapted from William Ellet's The Case Study Handbook, adds that a case has a significant issue, enough information to reach a reasonable conclusion and no stated conclusion (Simmons Writing Center). It may also contain irrelevant details and evidence scattered out of order.
Students often use "case-study" and "case analysis" as if they meant the same thing. USC separates them clearly. Its guide to the case study research paper describes a study that "examines a person, place, event, condition, phenomenon, or other type of subject of analysis" to reveal new understanding.
| Feature | Case Analysis | Case Study Research Paper |
|---|---|---|
| Purpose | Build critical thinking and decision making | Generate new knowledge or test a hypothesis |
| Who picks the case | Usually the instructor | The researcher |
| Facts | May be fictional, adapted or deliberately misleading | Must be factual and honestly reported |
| Sources | Mostly the case itself plus course concepts | Literature review and outside research |
| Outcome | A recommended course of action | Findings, limitations and future research |
Instructors vary, so follow your prompt first. Most assignments use some version of this structure, which mirrors USC's recommended sections and the Simmons decision-essay format.
| Section | What It Does |
|---|---|
| Problem statement | States the core problem or decision in one to three sentences, often with your position |
| Background | Gives only the facts needed to understand the problem, including key stakeholders |
| Analysis | Applies a framework to the evidence and explains causes, not just events |
| Alternatives | Presents two to four realistic options with pros and cons against stated criteria |
| Recommendation | Chooses one option and proves why it beats the others |
| Implementation plan | Lists steps, owners, timeline, success measures and the response to the main risk |
| Conclusion | Briefly ties the decision back to the problem and course concepts |
These steps combine USC's preparation advice with the Simmons approach of forming and testing a hypothesis.
This is an original, fictional example written for teaching purposes. The company, people and figures are invented and do not describe any real business.
Problem statement. Harbor Lane Coffee, a fictional three-location cafe chain, launched mobile ordering six months ago. Since then, morning wait times at its busiest store have roughly doubled, online reviews mention long pickup delays, and morning sales at that store have stayed flat while the other two grew. The owner must decide how to fix the morning bottleneck without losing mobile customers.
Background. The busiest store has one espresso machine and two baristas from 7 to 9 a.m. Mobile orders now make up about a third of morning orders, and they enter the same queue as walk-in orders. Staff report that walk-in customers leave when they see a crowd at the pickup counter.
Analysis (SWOT).
| Factor | Type | Evidence From the Case |
|---|---|---|
| Strengths | Internal | Loyal regulars, strong mobile adoption, good coffee ratings |
| Weaknesses | Internal | One shared queue, one espresso machine, no pickup area |
| Opportunities | External | Mobile orders could be timed and batched, and pre-orders could smooth demand |
| Threats | External | A national chain opening nearby, and review sites amplifying complaints |
The root cause is not demand itself but process design. Mobile orders arrive in bursts with no limit, and they share a single production line with walk-in orders.
Alternatives. (A) Hire a third barista for the 7 to 9 a.m. window. (B) Create a separate mobile pickup shelf and cap mobile orders at a set number per 10-minute slot. (C) Turn off mobile ordering during the morning rush.
| Criteria (Weight) | A: Third Barista | B: Slots and Pickup Shelf | C: Pause Mobile Orders |
|---|---|---|---|
| Cost (30%) | 2 | 4 | 5 |
| Wait-time impact (40%) | 3 | 4 | 4 |
| Customer retention (30%) | 4 | 4 | 1 |
| Weighted score (out of 5) | 3.0 | 4.0 | 3.4 |
Recommendation. Choose option B. It targets the root cause by spacing out mobile orders and separating pickup from the ordering line, at low cost. Option A adds labor but leaves the single-machine bottleneck in place, and option C pushes away the customers who use mobile ordering most.
Implementation plan.
| Timing | Action | Owner | Success Measure |
|---|---|---|---|
| Week 1 | Set the slot cap in the ordering app and install a pickup shelf | Owner | Feature live, shelf in place |
| Week 2 | Train staff on the new flow and post signs | Store manager | All morning staff trained |
| Weeks 3 to 8 | Track average wait time and walk-away customers each morning | Store manager | Wait time back to pre-launch level |
Main risk. Customers may dislike capped slots. If slots sell out daily for two weeks, the owner should revisit option A and add a barista for the busiest hour only.
This is an original, fictional example written for teaching purposes. The hospital, unit and figures are invented and do not describe any real facility or patients.
Problem statement. A 28-bed medical-surgical unit at a fictional community hospital recorded more patient falls this quarter than in the previous two quarters combined, with most falls occurring at night when patients got up to use the bathroom alone. The nurse manager must choose a fall-prevention plan the night shift can sustain.
Background. Night shift staffing is one nurse to six patients plus one aide for the unit. Fall-risk scores are documented at admission but not always updated. Bed alarms exist but are inconsistently turned on, and call lights are sometimes out of reach.
Analysis (root cause). Following AHRQ's advice to look at systems rather than individual mistakes, the team sorted causes into four groups.
The core problem is unmet toileting needs at night combined with an unclear alarm protocol. Staff carelessness is not the root cause.
Alternatives. (A) Hold a staff education session on fall risk. (B) Start hourly purposeful rounding at night (pain, position, possessions and toileting) plus a required bed alarm for high-risk patients. (C) Assign a sitter to every high-risk patient.
Recommendation. Choose option B. It addresses both root causes with existing staff and equipment. Education alone is a weak fix, a limitation AHRQ PSNet notes in its discussion of why many RCAs fail, and sitters for every high-risk patient would be costly and hard to staff.
Implementation plan. In month one, the nurse manager and a night charge nurse write the rounding and alarm protocol, add risk reassessment to the shift handoff, and clear bathroom paths. In months two and three, the team audits a sample of rounds each night and tracks falls per 1,000 patient days. The main risk is rounding fatigue, so the plan assigns rounds by room cluster and reviews the workload at a monthly staff meeting.
For a related clinical write-up, see this fall risk nursing care plan example, and this guide to SBAR examples for nurses shows how to communicate a plan like this one at handoff.
Copy this outline and fill in each line in your own words.
Rubrics differ by course, but most graders look for the points below. Check each one before you submit.
For more practice with evaluating sources and arguments, see the critical analysis essay guide. To see how a real corporate failure can be broken down, the Enron scandal case study walks through a timeline and lessons, and business assignment help covers cases, reports and plans.
Turning a long case into a focused argument takes practice, especially when the facts are messy. If you want feedback on structure or help understanding a framework, the case study writer page explains how to get guidance from experienced writers while you develop your own analysis.
Read the case twice, identify the core problem and stakeholders, and apply a framework such as SWOT or root cause analysis. Then compare two to four alternatives against clear criteria, recommend one, and write an implementation plan. Keep the case summary short and spend most of your words on analysis.
Most follow this order: problem statement, background, analysis, alternatives, recommendation, implementation plan and conclusion. Use headings for each section and cite the case and course readings in the assigned style. Always check your instructor's prompt, since some courses add an executive summary.
An analytical case study explains why something happened rather than just describing it. It uses evidence and a framework to identify causes, and it often ends with a judgment or recommendation. Both examples above are analytical because they trace symptoms back to root causes.
A case analysis form is a worksheet some instructors provide with fixed boxes for the problem, facts, analysis, options and recommendation. It works like a short outline. The template above can serve the same purpose if your course does not supply one.
Length depends on the assignment. Short class cases may run two to three pages, while capstone or MBA cases can be much longer. Follow the stated limit and give the most space to analysis and recommendations, not background.
Yes. USC notes that cases usually have no single correct solution, so graders focus on how well you support your choice. A different recommendation can earn full credit if the evidence and reasoning are strong.
Guidance comes from USC Libraries' case analysis and case study guides, Harvard Business School's case method page, the Simmons University Writing Center, Purdue University Libraries and AHRQ PSNet, as of Nov. 2026.
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