Ravel runs the rental and sale lifecycles of Dutch residential housing, from the mandate to the end of the tenancy or the transfer at the notary. Each lifecycle is a set of process models and decision tables bound to the law that governs it, and every act is appended to a record that cannot be quietly edited.
Ravel is complete enough to be either, and neither is an upgrade on the other.
The landlord's mandate is signed on both legs before anything is marketed. The requirement a candidate must meet is published before anyone is judged against it, and when someone is held back, the requirement applied is recorded. The award needs a second pair of eyes, and ending the tenancy withdraws the marketing that started it.
mandate · round · viewing · awardEvery owner signs the selling mandate. The seller's disclosure is shared version by version, and each buyer's receipt is signed. Registration needs no buying agent, and the viewings are open to every candidate. The client checks on both parties are recorded before an award, every owner accepts it, and the notary receives the sale's sealed references.
mandate · disclosure · bid plan · deedA home can be on offer for rental and for sale at once. Each offer is its own round, with its own record.
An agent following a written procedure can depart from it. A lifecycle whose steps are decision tables cannot. Each rule below is one the software evaluates, not a practice it recommends.
Every act in a rental or a sale is appended to a hash-chained record, so a later change is a new entry and never an edit of an old one. The public acts are also leaves in a signed log that can only grow, so the order of events can be checked without asking anyone for access.
The rules are decision tables that cite the law they encode, such as the Wet goed verhuurderschap for the rental procedure and the Civil Code and the Wwft for the sale.
regulators · supervisors · courts · municipalitiesA change in the law is loaded as a rule with the date it takes effect, and it applies from that date with no change at the agencies that use Ravel. A rental already under way follows the law as it stands at each step, while a credential already issued keeps the rulebook version that decided it.
Where a duty is not yet encoded, such as the rental deposit cap, Ravel states it, and the obligation stays with the agency.
parliament · ministries · advisory councilsAn agent can ask to see a candidate's verdict. Only the person who holds it can grant that, and the grant is recorded with what was asked for and why. Refusing is the candidate's word alone, and is never written on their behalf.
What an agent sees after a candidate grants disclosure of their verdict.
Ravel holds a signing key, so what that key can sign is limited by design rather than by procedure.
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