Contract design patterns

Many contract clauses describe obligations that unfold over time but present them as a single block of text. The timeline pattern restructures such clauses by aligning contractual commitments with key phases of the supply and delivery process. By making clear what is expected before, during, and after delivery, the pattern helps users quickly understand phase-specific responsibilities and supports the effective implementation of sustainability commitments across the supply chain.

Example

The following land use clause bundles several distinct obligations into a single provision, covering preparations before construction, restrictions during works, and restoration duties after completion.

Land use

The Supplier shall, prior to commencing works, enter into the necessary agreements with affected landowners and other relevant rights holders concerning access routes, traffic arrangements, and temporary storage areas. The Supplier shall not extract, remove, or use soil, gravel, or other aggregate materials from within or adjacent to the infrastructure corridor or from any gravel pit without the prior consent of the relevant landowner. Upon completion of demolition or removal works, the Supplier shall ensure that agricultural land is restored such that the upper soil layer, to a depth of at least 0,5 meters, remains suitable for cultivation. Former structure sites shall be cleared, ensuring that no surplus soil, stones, or debris remain on the site.

In the following timeline graph, the same obligations are visually reorganised according to the three main phases of the works.

Swimlane patterns are visual tools used to show how rights, duties, and procedures are divided between the parties to a contract. Instead of scattering responsibilities across multiple clauses, a swimlane diagram places each party in its own “lane” and maps actions and decisions across those lanes. This makes it easier to see how processes unfold, who is responsible for what and when interaction between the parties is required.

Example

The following clause describes a grievance handling procedure related to workers’ rights. While the original contract wording appears straightforward, it embeds a multi-step process involving a series of actions: assessments, notifications, information requests and negotiations.

Grievance mechanism

The Supplier shall establish a grievance mechanism enabling workers employed by the Supplier or its subcontractors to submit complaints regarding working conditions, labour rights, or other human rights concerns related to the performance of this Agreement.

The Supplier shall acknowledge receipt of each grievance, assess its severity, and determine appropriate corrective actions. Where the grievance indicates a serious or systemic issue, the Supplier shall inform the Buyer without undue delay. The Buyer may request information regarding the grievance and the proposed corrective actions and may require additional measures where the response is deemed insufficient. The Supplier shall implement agreed corrective actions and report on their completion.

The following swimlane diagram makes this process explicit by showing how the procedure unfolds over time. In particular, it reveals how the Supplier acts as the primary operator of the mechanism, and how the Buyer’s role is exercised through evaluation and approval rather than direct action.