Capped T&M contracts work in the sense of traditional T&M contracts. However, there is an upper limit to how much customers will have to pay. In this way, suppliers benefit with early time-frame changes while customers only have to pay up until the capped cost limit is reached.2
In target cost contracts, parties involved with the contracts agree on a final price during negotiation. These contracts allow cost savings for both parties if contracts run below budget, but also allows both parties to be faced with additional costs if contracts run above budget.
Incremental Delivery Contracts allow customers to review contracts at designated points in the contract life cycle. These points are negotiated into contracts and allow customers to make changes, continue, or terminate the project.
The Agile fixed price is a contract framework most suitable for complex IT projects, where scope, progress and costs are difficult to determine in advance. For standard projects, which have already taken place in the same or a similar way in the past, the test phase and the assessment of the project progress may be skipped. In order for this contractual model to be successful, the supplier and customer should collaborate closely throughout the entire length of the project. Furthermore, a certain amount of mutual trust is imperative in order to be able to agree on the budget, expenses and range of features. It is also advisable to ensure that the broad requirements (epics) listed at the beginning of the project are turned into smaller, more detailed requirements (user stories) as soon as possible. Otherwise, the potential for uncertainty and its connected risks rises.8
Andreas Opelt et al.: Agile Contracts: Creating and Managing Successful Projects with Scrum. Wiley Series in Systems Engineering and Management. 45–46 ↩
Villanova University: Agile Contract Management. Agile Contract Management http://www.villanovau.com/resources/contract-management/agile/ ↩
Andreas Opelt et al.: Agile Contracts: Creating and Managing Successful Projects with Scrum. Wiley Series in Systems Engineering and Management. 47-72 ↩
Michael Overly, James R. Kalyvas: Software Agreements Line by Line. How to Understand and Change Software Licenses and Contracts to Fit Your Needs. Aspatore Books. 278–279. ↩