Analogous estimation is the fastest — ideal at the start of a project when you have little detail but plenty of historical data from similar work. It trades precision for speed.
Parametric estimation is formula-driven (e.g. “5 hours per feature × 20 features = 100 hours”). It works best when you have reliable unit rates and the work is repetitive or measurable.
Three-point / PERT is the go-to when uncertainty is high. By averaging an optimistic, most likely, and pessimistic scenario using the formula E = (O + 4M + P) / 6, it bakes risk directly into the estimate.
Bottom-up estimation delivers the highest accuracy but takes the most time. You decompose the entire project into individual tasks via a WBS (Work Breakdown Structure), estimate each task, then roll them all up. It’s the gold standard for detailed project planning.
Shopify API endpoints are the specific URLs through which developers interact with Shopify’s platform to manage stores, products, customers, orders, and more. Shopify offers two main APIs: the REST Admin API (legacy, being phased out) and the GraphQL Admin API (the future standard).
