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

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.

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

A discovery prototype is a smaller-scale representation or working model of the system to ensure it meets the user and business requirements.

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

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

Pilot implementation is a small group of people using the new system until it is verified that it works correctly; then the remaining users migrate.

Human resources is the most common outsourced function.

Conversion occurs when a person or event is the catalyst for implementing major changes for a system to meet business changes.

Corrective maintenance makes system changes to repair design flaws, coding errors, or implementation issues.