Unit testing uses both the legacy system and new system until all users verify that the new system functions correctly.

Summary internal reports highlight situations occurring outside of the normal operating range for a condition or standard.

Status reports are periodic reviews of actual performance versus expected performance.

In-sourcing (in-house development) uses the professional expertise within an organization to develop and maintain its information technology systems. In-sourcing has been instrumental in creating a viable supply of IT professionals and in creating a better quality workforce combining both technical and business skills.

A web service is a markup language for documents, containing structured information.

The project requirements document defines the specifications for product/output of the project and is key to managing expectations, controlling scope, and completing other planning efforts.

What is also provided for the system users and can be online or in a classroom?

Human resources is the most common outsourced function.

Software engineers use computer-aided software engineering (CASE) software tools to provide automated support for the development of the system.

Service-oriented architecture (SOA) is a business-driven enterprise architecture that supports integrating a business as linked, repeatable activities, tasks, or services.