The rough phases
Discovery and product scope (mapping the workflow, data model and roles), design of the core screens, build (frontend, backend, database, integrations), and testing against real user flows before launch.
What makes it faster
A narrowly-scoped MVP (see What Should Be Included in an MVP), a single user role, minimal third-party integrations, and a clear, already-understood workflow going into scoping.
What makes it slower
Multiple roles with distinct permission sets, several third-party integrations that need custom logic, an unclear or evolving workflow that needs to be discovered during the project rather than defined upfront, and any AI feature that needs real testing against edge cases.
Being honest about scope creep
The single biggest cause of a longer-than-expected timeline is scope added mid-project — a fixed, written scope from a proper Product Scope conversation is what actually protects the timeline, not an optimistic estimate.
Questions
Is there a fixed number of weeks?+
No universal number — it depends on role count, integration complexity and how well-defined the workflow already is, confirmed during scoping.
Can I launch a narrower MVP first and expand later?+
Yes — this is usually the faster, more honest path than committing to full scope upfront. See SaaS MVP Development.
Does testing add significant time?+
It's built into the timeline, not an afterthought — skipping it is how avoidable bugs reach real users.