Cas / Planning & contrôle
Planning & contrôle

Construire le cronograma físico-financeiro à partir de l'orçamento

Prenez l'orçamento chiffré comme source, séquencez les travaux, reliez chaque poste à l'activité qui le génère, répartissez l'argent sur les périodes, prouvez que les périodes totalisent bien le montant du contrat et publiez la courbe avec l'offre.

6 étapes16 minEntreprise généralePromoteur / maître d'ouvrageBureau de gestion de projet / de construction

Comment ça marche, étape par étape

6 étapes à travers la plateforme - ce que vous faites à chacune et pourquoi c’est important.

1

Start from the priced orcamento, not from a summary

Devis quantitatif

Open the priced bill and confirm that every item carries a quantity, a unit and a value, and that the group structure is the one the cronograma will report against. Fix the structure here rather than inventing a second grouping for the schedule.

Pourquoi: Lei 14.133 of 2021 requires the works package to carry a detailed budget grounded in measured quantities, so the bill is the legal source of the figures and the cronograma is a view of it. A curve built from a summary sheet quietly becomes a third document with a total of its own, and the first medicao is where the three are discovered to disagree.

EntréePriced bill positionsItem groups of the orcamentoRésultatContract total to be spreadQuantities behind every figure
2

Sequence the work into a programme

Planning 4D

Build the activities the work is actually done in, give each one a duration that comes from the quantity and the crew rather than from the calendar you would like, and set the dependencies between them. Name the milestones the contract will be measured against.

Pourquoi: The physical half of the cronograma is the half that gets skipped, because the financial half can be produced by dividing the total into equal months and nobody notices for a quarter. A programme built from quantities and crews is the only version that answers the question the client will ask in month three, which is whether the plan was ever achievable.

EntréeMethod and crew sizesQuantities behind every figureRésultatBaseline programmeMilestone dates named
3

Link every item to the activity that earns it

Modèle de coûts 5D

Attach each bill item to the activity that will earn it, splitting an item across two activities where the work really is done in two places. Then look at what is left over on both sides: items no activity earns, and activities that earn nothing.

Pourquoi: The leftovers are the finding. An item nothing earns is usually work that was priced and then left out of the plan, and an activity earning nothing is usually work that will be done and was never priced. Both are cheap to fix now and expensive to discover during a medicao, when one of them is already built.

EntréeBaseline programmePriced bill positionsRésultatEvery item linked to an activityItems no activity earns
4

Spread the money over the measurement periods

Finances

Let the linked values fall into the periods the contract measures in, and read the cumulative curve as well as the monthly bars. Note the month of peak funding and what the advance, if there is one, does to it.

Pourquoi: The client reads the cronograma as a budget commitment and the contractor reads it as working capital, and the two readings meet at the peak. Named in advance it is a financing decision. Discovered in month five it is a conversation about slowing the work down, which costs both parties more than the finance would have.

EntréeEvery item linked to an activityMeasurement periods of the contractRésultatCash forecast per periodPeak funding named
5

Prove the periods add up to the contract sum

Validation

Run the check that the sum of the periods equals the total of the priced bill, and that no period is negative or empty in the middle of continuous work. Chase any difference back to the item that caused it rather than adjusting the last month to close it.

Pourquoi: A cronograma that does not total to the contract sum will be rejected on sight, and closing the gap by editing the final month hides whatever caused it, usually an item linked twice or linked to nothing. The check takes seconds and the diagnosis it gives is the part worth having.

EntréeCash forecast per periodContract total to be spreadRésultatValidation report on the totalsDifference to explain
6

Publish it as the baseline the medicoes report against

Rapports

Export the physical and the financial halves as one document with the same period headings, and keep the version that went with the proposal as the baseline. Later revisions are compared against it rather than replacing it silently.

Pourquoi: Every medicao is read against the cronograma, and the whole conversation about delay depends on which version of it both sides are holding. A baseline kept as issued makes the comparison a fact. A cronograma quietly updated each month makes the job look on programme until the last month, when the remaining work no longer fits in it.

EntréeCash forecast per periodBaseline programmeRésultatCronograma export for the proposalBaseline the medicoes report against
Modules

Modules de ce playbook

6 / 190 modules de la plateforme

Le marché pour lequel ce cas est écrit

Brésil

Tout dans ce cas suit la façon dont les travaux sont métrés, chiffrés et payés sur ce marché. Les formulaires, la décomposition des coûts et les règles de paiement sont ceux qui y sont utilisés, pas une version générique.

Normes qu’il suit

  • Lei 14.133
  • SINAPI
  • ABNT NBR 12721

Vous n’avez rien de tout cela à paramétrer à la main. Au premier démarrage, la plateforme demande sur quel marché vous travaillez. Choisissez celui-ci et elle règle la langue de l’interface, charge la base de coûts correspondante, enregistre la classification des coûts et ajoute un projet d’exemple que vous pouvez ouvrir tout de suite.

Les contrôles propres à ce marché sont eux aussi fournis avec la plateforme. Une fois activés, un devis auquel il manque quelque chose que le marché attend est signalé pendant que vous y travaillez, et non après l’envoi de l’offre.

Plus dans Planning & contrôle

Planning & contrôle

Valeur acquise et prévision

Voir où en est réellement le chantier par rapport au planning et au budget : mettre le plann…

3 étapes13 minOuvrir