Given that the global RWD market is projected to exceed $3 billion by 2027, professionals with the skills taught in EN.605.704 are in high demand. Specific job titles that directly benefit include:

Notable employers who actively recruit JHU EP alumni with EN.605.704 on their transcripts include: Johnson & Johnson, Medtronic, Philips, Stryker, FDA, and Google Health.

Before dissecting the course itself, it is crucial to understand why EN.605.704 exists. The 21st Century Cures Act and the FDA’s Real-World Evidence (RWE) Framework have fundamentally changed how devices are approved and monitored.

Traditional clinical trials are expensive, slow, and often fail to capture how a device performs in a diverse, real-world population. RWD—derived from electronic health records (EHRs), insurance claims, patient registries, and even wearable sensors—offers a solution.

EN.605.704 teaches students how to harness this messy, unstructured data to:

He told the class that silence could be loud—the kind that filled rooms like furniture, heavy and patterned, the kind you learned the contour of with your elbows. They all laughed because the professor had a way of saying strange things and making them sound like secrets. Maya did not laugh. She had been practicing silence for years.

On the bus she sat near the window and watched a neighborhood pass by that had once been a map in her head: the library with the cracked steps where she'd memorized poetry, the bakery that smelled of butter and small failures, the laundromat with its tired fluorescent light that hummed like an old insect. Each landmark was an argument she had had with herself and lost. Her phone buzzed once in her bag and she let it go; its vibration was a foreign language she no longer tried to learn.

In class, they read a story about a woman who mailed herself away in pieces—pages of her life folded into envelopes and stamped with apologies. “How much of you are you willing to send?” the professor asked. The students wrote answers that circled the obvious—family, debt, a cat named Jupiter. Maya wrote nothing. Instead she drew a small map in the corner of her notebook: a boxy apartment building, a single window shaded, a tiny figure standing beneath it.

Afterwards, while the others clustered around the coffee cart and traded sentences like currency, Maya walked to the river. The city on the far bank looked like a reflection being stubborn about staying itself. Boats drifted, indifferent, and gulls argued over a bread crust as if their history mattered. She looped her scarf tighter and remembered a time when she thought movement was a necessary forgiveness. She had boarded planes and trains as if they were confessions one made to strangers. The itinerant life, she had decided, made a person less afraid of losing things because everything was already in motion.

A man sitting on a bench beyond the birches was reading a book with a blue cover. He had the careful posture of someone who had practiced focus as a religion. When he looked up they both noticed the same small thing: a scar on his hand shaped like a comma. It made him look like he had been paused mid-sentence and never resumed. Maya smiled, a brief punctuation, and he smiled back, the way people do when offered an unthreatening truth.

“Do you ever send pieces of yourself away?” he asked, closing the book but keeping his place with a thin finger.

“Not lately,” Maya said. Her voice surprised her—thin, like a string pulled taut. “I keep them in boxes.”

He nodded as if this explained everything. “Boxes are honest. They at least acknowledge they’re containers.”

They spoke in fragments because the day had already taught them to. He told her the scar was from a childhood bike spill; she admitted she preferred the quiet between trains. He offered her a piece of his sandwich and she declined, not because she didn’t want it but because the act of refusing established a border she could measure.

When he left, he tucked a small folded paper into the pocket of his jacket without thinking about it. The paper had been beneath his finger for the entire conversation—the part of a note he had meant to send. Maya watched him go and felt, absurdly, like she had been near the mouth of a decision and had not leaped. The paper came loose in his jacket pocket and drifted out onto the path. Maya picked it up because people pick up things; it is an old, default kindness, one that requires no preface.

The paper read: For every silence, a small light. Keep it.

She wondered for a second if someone had written it for her. The pronoun felt suspiciously personal. Then she folded it back along its original crease and slid it into her notebook above the tiny map. The river kept on moving, the gulls kept on arguing, and the city across the water held its reflections like careful promises.

That night, she opened a box that smelled faintly of mothballs and cinnamon and pulled out things she had mailed herself over the years: a ticket stub from a film she had watched alone; a postcard from a friend who had stopped writing; a dried sprig of lavender she had found in a book. Each item made a small sound when she set it on the table, like a hinge remembering its purpose. She placed the folded paper on top and sat back to watch the small constellation she had assembled.

The next morning, she returned to the bus stop with the paper in her pocket and the box in her bag. In class, the professor passed around an assignment about endings, and the student beside her said, loudly, “Endings are just beginnings that got tired.” Someone else disagreed. Someone laughed. Maya thought of the man’s comma-shaped scar and the paper’s instruction and felt a lightness in her sternum she hadn't recognized as such—an ember, perhaps, that had not yet decided if it would warm or burn.

She began, carefully, to write small, inconsequential notes. To a neighbor who brought her a plant-sitting form: Thank you, with a drawing of a potted cactus. To a barista whose name she forgot: I liked the way you folded my pastry. To herself: For every silence, a small light. Keep it.

She did not post these notes. She left them tucked into library books, slipped under plates at the café, pinned gently to a lamppost with a fingerprint of glue. They were not confessions; they were spare offerings, the sort that did not ask for a reply. The city took them in with its usual charity: a paper under a bench stayed a paper until rain introduced its own opinion; a note folded into a book became someone else’s secret.

Weeks slid by. People sometimes looked at the notes and smiled—tiny constellations rearranging themselves. A woman returned a plant with a note that read, “Your rosemary lived like it wanted to.” A student found one and left a reply tucked beneath the spine of a novel: “Thank you. I kept it.” No one knew they were part of a quiet chain; that was not the point.

One evening at dusk, Maya found a reply of her own that did not belong to any of her notes but to the blue-covered book man. It was tucked between two volumes in the library where she had once memorized poetry. The reply read: Your comma is a beautiful place to breathe.

She ran her thumb over the paper until the texture softened and realized then that she had been collecting not only objects but permissions: to keep, to speak softly, to be allowed to stop mid-sentence without apology. She put the reply in her box beside the postcard and the ticket stub, and the papers together felt like a small city of acknowledgments.

Months later, the semester ended. The professor assigned a final project: an artifact that represented the students’ semester-long negotiation with language. Maya brought her box. It sat on the table like a modest altar—the ticket stub, the lavender, the folded paper, the notes, the replies. When asked to explain, she read a single line she'd written on the back of the box: For every silence, a small light. Keep it.

Her classmates took turns offering interpretations—about epistolary forms, about absence, about the ethics of giving without demanding return. The professor nodded in that exact way that suggested both approval and new questions. Maya listened and felt a strangeness: the words they used were clever, precise; they fit into arguments like well-cut stones. But none of them touched the place in her chest where the light had settled.

On the final day, the man with the blue book stood near the doorway as students filed out. He had been quiet all semester, a punctuation in the margins. Their eyes met; this time he held a small box wrapped in brown paper. Inside, there was a single note that said, simply: For every silence, a small light. Keep it.

Maya took the box with hands that remembered how to cradle things without claiming them. She felt the weight of the semester in the paper’s fibers and the improbable, cumulative radiance of tiny exchanges. The city outside hummed—a refrigerator light in some apartment, a phone left to charge, a sprinkler cycling like a mechanical sigh.

She did not know whether the man had meant to start anything grand. Perhaps he had not. Perhaps the act of leaving words in places had no teleology beyond the small warmth it made. That was enough.

When she walked home that evening, the box in her bag, she kept her steps measured and listened for the places silence might be loudest—the quiet bedroom with its shelves of undone things, the hallway that held every neighbor’s comings and goings like ghostly applause. She placed the note on her bedside table and, for the first time in a long time, let herself finish a sentence and then stop, and in the pause—brief, unadvertised—she felt the small light glow.

Problem: Your sporadic server fails to replenish budget correctly.
Solution: Re-read the sporadic server algorithm in Buttazzo’s textbook—it is subtle.

Across online forums (e.g., r/RegulatoryAffairs, RateMyProfessor, JHU EP student groups), EN.605.704 consistently receives high marks for relevance but cautions regarding workload.

Positive themes:

"This is the only class I took at JHU that directly used the three FDA guidance documents I now reference weekly at work."

"The final project forced me to actually write a submission memo. I used that exact structure for my first 510(k) RWE supplement six months later."

Challenges noted:

"If you don't remember your regression diagnostics, review them before week 8. The confounding module is relentless."

"Some lectures assume you already know SAS. If you’re an R purist, you’ll need to translate on the fly."