Scalability and Performance Optimization teaches students to analyze real systems and make genuinely informed decisions — not guesswork — about design, performance, and reliability improvements.
What D787 covers
The course prepares students to analyze real-world systems and make informed decisions to improve overall design, performance, and reliability.
Students create tests validating both scalability and reliability, applying theoretical concepts to real-world design, performance, and reliability systems.
The D787 performance assessment
Expect a performance assessment requiring you to analyze a system's scalability and reliability, design tests validating both, and propose data-driven improvements.
Key topics in D787
- Real-world system analysis
- Scalability testing
- Reliability testing
- Theory-to-practice application
Writing tips for D787
Follow the task instructions and rubric line by line
WGU performance assessments for D787 are graded against a fixed rubric — every rubric line has to be visibly addressed, usually with a labeled heading that mirrors the rubric language. Skipping a rubric point because it seems minor is the single most common reason a competent submission comes back "Not Yet Competent" for revision.
Show your actual code and test results, not just a description of what you built
WGU evaluators are trained to distinguish genuine software engineering work from a paraphrased summary. Include your actual code, along with evidence it was tested (test cases, output, screenshots) — a rubric checking technical competency wants to see the working artifact and proof it functions.
Because WGU is self-paced, don't let "no deadline pressure" become no submission
There's no weekly due date forcing progress, which means procrastination costs more at WGU than at a traditional term-based school — a stalled task can quietly eat weeks of a term. Treat your own target date for each D787 assessment as a real deadline.
Stuck on your D787 task?
Our writers know WGU's competency-based format and this course's performance assessment. Get an original, properly cited paper matched to your task instructions.
Why students seek help with D787
Students sometimes propose improvements based on intuition rather than the test data the course specifically requires generated first — a strong response is grounded in genuine test results, not assumption.
How GradeEssays helps with D787
Share your system scenario and rubric, and your writer will build genuine scalability/reliability tests and ground the improvement proposals in that test data.
Get Help With D787
Share your task instructions and rubric and we match you with a writer who knows this course and WGU's evaluation standards.
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D787 builds on Microservices Design and Architecture.