A Development Services Agreement (DSA) is a contract between two parties that outlines the services, expectations, and general terms of engagement with regard to efficient software development. It is typically used when a client requires custom software services, such as coding or design, from an outside development organization or individual. A DSA typically covers timelines, payments, deliverables, and any other relevant information pertinent to the project in question. The agreement should also include details on intellectual property rights, security measures, and quality assurance standards, allowing both sides to benefit from clear communication and understanding.