Non-long-term contract activity.
Non-long-term contract activity. Non-long-term contract activity means the performance of an activity other than manufacturing, building, installation, or construction, such as the provision of architectural, design, engineering, and construction management services, and the development or implementation of computer software. In addition, performance under a guaranty, warranty, or maintenance agreement is a non-long-term contract activity that is never incident to or necessary for the manufacture or construction of property under a long-term contract.