Technical scope note: No source code, technology stack, or release configuration was supplied. This document states implementation requirements without assuming a framework, database, backend, or specific Android API level. Confirm these choices against the actual app and build before adopting this as a final engineering specification.
1. App title
WeeklyMealBudgetPlanner
2. Full app description
Make mealtime planning feel a little easier with WeeklyMealBudgetPlanner—a friendly place to organize your meals, grocery list, and weekly food budget.
Planning the week can help you spend less time wondering what to make and shop with a clearer idea of what you need. Keep your meal ideas together, plan ahead at your own pace, and bring your grocery list along for the trip.
PLAN YOUR WEEK
Lay out meals for the days ahead and keep your ideas in one place. Start with a favorite recipe, make room for a busy evening, or leave a day open—your plan is yours to shape.
KEEP YOUR BUDGET IN VIEW
Set a weekly food budget and see your planned spending as you organize meals and shopping. A little visibility can make it easier to make choices that fit your week.
MAKE A SHOPPING LIST
Gather the groceries you need for your planned meals in one handy list. Review it before you shop and keep your trip focused on what you came for.
A SIMPLE ROUTINE, YOUR WAY
WeeklyMealBudgetPlanner is designed to help bring meal planning and grocery budgeting together without making the process feel complicated. Update your plan as life changes, try something new, and make the most of the ingredients you choose.
Plan a little. Shop with intention. Enjoy more good meals with WeeklyMealBudgetPlanner.
3. System context
The product is an Android mobile application used to create and maintain a weekly meal plan, a weekly food-budget target, and a grocery list. The system must identify whether these records remain on-device or use a remote service. Until that architecture is confirmed, the requirements below define behavior and safeguards rather than a specific implementation stack.
4. Platform and compatibility
- TR-PLAT-01: Deliver an Android application package compatible with the minimum and target Android versions selected for release.
- TR-PLAT-02: Declare only permissions necessary for implemented features; explain each sensitive permission in context.
- TR-PLAT-03: Support common phone screen sizes, orientation behavior defined by product design, Android system insets, and user font scaling.
- TR-PLAT-04: Record the selected application ID, versioning policy, signing configuration, minimum SDK, target SDK, and build variant in release documentation.
- TR-PLAT-05: Keep development, test, and production configuration separate; no production secrets may be committed to source control.
5. Core technical behavior
5.1 Meal plan
- TR-MEAL-01: Represent each meal with a stable identifier and an association to its planned date or week and meal slot.
- TR-MEAL-02: Support create, read, update, and delete operations with input validation and user-visible save/error states.
- TR-MEAL-03: Date and week calculations must use a consistent calendar and locale policy; test week boundaries, month changes, and year changes.
5.2 Budget
- TR-BUDGET-01: Store currency amounts using a decimal-safe representation (for example integer minor units plus currency code), not binary floating-point arithmetic for financial totals.
- TR-BUDGET-02: Define and document how planned spend is calculated, which entries contribute to it, and how rounding is handled.
- TR-BUDGET-03: Validate amounts as non-negative and within supported numeric bounds; show the selected currency and formatting consistently.
- TR-BUDGET-04: Unless a verified pricing service is added, label totals as user-entered estimates and never imply live store prices.
5.3 Grocery list
- TR-LIST-01: Each item must have a stable identifier, display name, optional quantity/unit and optional estimated cost, and completion state if checking items off is supported.
- TR-LIST-02: Prevent blank names, handle duplicate items predictably, and preserve the user’s list ordering or defined sorting behavior.
- TR-LIST-03: If meals can populate list items, define duplicate merging, quantity aggregation, and deletion behavior before implementation.
6. Data model and persistence
The logical data model should include a PlanWeek (week start date and budget/currency settings), MealEntry (plan/week reference, date or day index, meal slot, title, optional note), and GroceryItem (plan/week reference, name, optional quantity/unit/cost, completion state, sort order). These are conceptual entities, not a prescribed database schema.
- TR-DATA-01: Select and document the persistence mechanism appropriate to the existing codebase; enforce data integrity across related records.
- TR-DATA-02: Define behavior when the app is closed, process-killed, updated, or device-restarted. User-confirmed changes must not silently disappear.
- TR-DATA-03: If local-only storage is selected, state whether Android device backup includes this data and provide a clear delete/reset path.
- TR-DATA-04: If a remote service or sync is used, specify authentication, authorization, transport security, conflict resolution, retention, deletion, and outage behavior before release.
- TR-DATA-05: Any schema migration must preserve valid user data or provide an explicit, recoverable failure path.
7. Architecture and integrations
- TR-ARCH-01: Separate presentation, application logic, and persistence/network concerns sufficiently to test calculations and data rules independently of the UI.
- TR-ARCH-02: Keep core meal, list, and budget planning usable without a network connection if the selected feature set has no online dependency.
- TR-ARCH-03: Do not add analytics, ads, crash reporting, account services, or third-party SDKs without product approval, privacy review, and updated store disclosures.
- TR-ARCH-04: If external integrations are introduced, document the provider, data exchanged, failure modes, permissions, and user-facing behavior.
- TR-ARCH-05: Do not include an API endpoint or server dependency in the release build unless one is required by the approved architecture.
8. Security and privacy
- TR-SEC-01: Collect and retain only data required for the selected features; do not request sensitive Android permissions without a justified user-facing need.
- TR-SEC-02: Protect data in transit with current TLS when network transmission is used. Do not disable certificate validation in production.
- TR-SEC-03: Store no passwords, API keys, signing keys, or other secrets in plain text in the app package or repository.
- TR-SEC-04: Provide a user-accessible way to remove stored planning data; define deletion behavior for local data, backups, and server copies if applicable.
- TR-SEC-05: Inventory all SDKs and data flows for each release; align the privacy policy and Play Console Data safety form with observed behavior.
- TR-SEC-06: Avoid placing meal notes, budgets, or grocery details in diagnostic logs unless strictly necessary and appropriately redacted.
9. User interface and accessibility
- TR-UX-01: Use semantic labels and accessible names for interactive controls, inputs, and status messages.
- TR-UX-02: Support Android screen readers, large text, adequate color contrast, and touch targets consistent with current Android accessibility guidance.
- TR-UX-03: Inputs must provide appropriate keyboard types, inline validation, and clear recovery guidance for invalid values.
- TR-UX-04: Do not communicate budget state, grocery completion, or errors through color alone.
- TR-UX-05: Verify layouts at supported screen sizes and with accessibility display settings enabled.
10. Reliability, performance, and quality
- TR-QUAL-01: Establish measurable startup and interaction performance targets based on supported devices before release; test them on representative hardware.
- TR-QUAL-02: Handle storage failures, malformed input, interrupted writes, and unavailable network services without corrupting existing user data.
- TR-QUAL-03: Unit-test date/week rules, money calculations, input validation, and list/meal relationships.
- TR-QUAL-04: Run integration and UI tests for add/edit/delete flows, persistence across app restarts, empty states, and accessibility labels.
- TR-QUAL-05: Test supported Android versions, screen sizes, font scaling, locale/currency formatting, and offline behavior where applicable.
- TR-QUAL-06: Release builds must pass automated checks and a documented manual smoke test; test data and debug controls must not ship to production.
11. Build, release, and operations
- TR-REL-01: Produce a signed release artifact using a documented, access-controlled signing process.
- TR-REL-02: Make version name/code and release notes correspond to the tested build.
- TR-REL-03: Verify install, upgrade, launch, data retention/migration, and uninstall behavior on a clean test device before distribution.
- TR-REL-04: Keep the release artifact, source revision, dependency inventory, and test evidence traceable to one another.
- TR-REL-05: Document a rollback or corrective release process appropriate to the chosen distribution channel.
12. Technical acceptance criteria
- All meal, budget, and grocery data behaviors are implemented and covered by tests or documented manual verification.
- Budget values use a defined currency and rounding policy, and displayed totals match the documented calculation.
- Data storage, backup, deletion, permissions, and any network/SDK flows are documented and consistent with privacy disclosures.
- The release build installs, upgrades, and operates on the declared Android support range without critical data-loss or crash issues.
- Accessibility checks, automated quality gates, and the release smoke test are complete and recorded.
- Build identifiers, signing, dependency inventory, and release artifacts are traceable to the approved source revision.
13. Decisions required before implementation sign-off
- Which Android framework, language, build system, and existing architecture are already in use?
- What minimum and target Android API levels and device form factors are supported?
- Is data local-only, backed up by Android, or synchronized through a service?
- How are grocery item costs entered and used to calculate planned spend? Which currencies/locales are supported?
- Are any third-party SDKs, analytics, ads, crash reporting, accounts, or network APIs included?
- What are the measured performance, availability, and accessibility targets for this release?