CASE STUDY 02 · EDTECH · DATA MANAGEMENT SYSTEM
Zenda: replacing NYC's failing special ed system, so no student gets missed.
I led the redesign of 6 modules in the NYC Department of Education's new Special Education Data Management System (SEDMS), the platform that tracks whether students with disabilities get the services they're legally owed.
A $130M system failing up to 800,000 times a day.
Lead designer, 6 modules, research to handoff.
- Future state, gradual shift
- IEP goals inside notes
- Compliance over flexibility
- Progress at a glance
Testers: "easy to learn." Handed off to engineering.
the problem
- Legally binding dataEvery service a student receives is tied to their IEP. Mistakes have legal consequences.
- A very wide range of usersTeachers, case managers, school psychologists and therapists, so everything had to meet WCAG.
- People depend on it dailyWe couldn't just start over and leave existing users to figure it out.
- A large, cross-functional teamDesigners, research, engineering and SMEs.
my role
- User interviews and a heuristic review of SESIS
- Wireframes for the related service provider experience
- Weekly co-design sessions with SMEs, users and engineers
- High-fidelity design for 6 modules
- Components and patterns in the new design system
- Usability testing and developer handoff
01RESEARCH
understand why people avoided the system
I interviewed users and ran a heuristic review of the old system, SESIS. Even stakeholders joined research so we shared one understanding of the rules.

- The system was so hard to use that people entered data offline instead.
- Educators had complained for years that it was slow and time-consuming.
- It didn't reflect what teachers actually experienced with their students.
- Its flaws made it hard to know how well the city was serving students with disabilities.


02CO-DESIGN
design the future state, together
The system needed a fresh start, but thousands of educators relied on it daily. I designed "blue sky," then tested it every week with SMEs, users and engineers so the change felt gradual. All three groups were on board before high fidelity, which de-risked the build.


03FINAL DESIGNS
final designs
Put IEP goals inside the session note
- THE PROBLEM
- Writing one session note meant jumping between screens and tabs.
- WHAT I DID
- Put each student’s IEP goals in a dropdown inside the note, next to attendance and progress.
- RESULT
- The most-loved feature in testing. It cut steps from a daily task.

Choose compliance over flexibility
- THE FINDING
- Some text must stay exactly as written to comply with IEP rules.
- WHAT I DID
- Locked those fields, even though more editing would have felt friendlier.
- THE TRADE-OFF
- Less freedom, but records that hold up legally.

Make progress readable at a glance
- THE PROBLEM
- No one could easily see how well students were being served.
- WHAT I DID
- A dashboard with colour-coded goals, missed sessions, deadlines and links into each student’s record, built to WCAG.
- RESULT
- Every tester valued the colour-coded goals and direct links.

Other modules I designed
outcome
Testers found it intuitive and "easy to learn." I documented every module for engineering and stayed close to the build. SEDMS was in development when my engagement ended.
What I learned
In a regulated system, subject matter experts are your best design partners. Weekly sessions with them, users and engineers kept a complex project on schedule.
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