Create a local expense application whose calculations are traceable and whose database rejects obvious invalid records. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Python SQLite Expense Tracker: CRUD, Transactions and Monthly Reports Read More »
Organise a controlled sample folder by file type while previewing every move and preserving a recovery manifest. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Python CLI File Organizer Project: pathlib, argparse and Safe Dry Runs Read More »
Model stock items and movements so invalid states are caught at clear boundaries and functions explain their contracts. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Python Type Hints and Dataclasses: Build a Validated Inventory Model Read More »
Replace scattered print statements with logs that explain one batch job without exposing secrets. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Python Logging Project: Structured Logs, Levels and Rotating Files Read More »
Create a monitoring plan that separates a broken pipeline from a changing population and an actually weaker model. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Data Science Model Monitoring: Drift, Data Quality and Retraining Triggers Read More »
Predict a usable risk window, choose an intervention threshold and show why accuracy alone is misleading. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Customer Churn Data Science Project: Labels, Leakage, Thresholds and Action Read More »
Forecast weekly demand without leaking future information and prove whether the model beats a seasonal baseline. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Time-Series Forecasting Project: Baselines, Backtesting and Error Analysis Read More »
Turn a product idea into a decision-ready experiment before looking at outcome data. A practical guide with a workflow, evidence checklist, common errors and learner questions.
Data Science Experiment Design: Hypotheses, Metrics, Bias and Reproducibility Read More »
Build a simple headcount and movement report, reconcile it and prove that two personas see only authorised data. A practical guide with a workflow, evidence checklist, common errors and learner questions.
SAP SuccessFactors Story Reports: People Data, Filters and Permission-Safe Output Read More »
Route one employee change to the right manager and HR approver, then test missing-approver and delegation cases. A practical guide with a workflow, evidence checklist, common errors and learner questions.
SAP SuccessFactors Workflow Configuration: Dynamic Roles, Contributors and Escalations Read More »
