Software Architect's Handbook

Service layers and service models

Enterprise logic consists of both business and application logic. Business logic is an implementation of the business requirements and includes an organization's business processes. These requirements include things such as constraints, dependencies, pre-conditions, and post-conditions.

Application logic is the implementation of business logic in a technology solution. Application logic might be implemented in a purchased solution, a custom developed solution, or some combination of the two. The development team works to design and develop the application logic. Topics such as performance requirements, security constraints, and vendor dependencies are considered in the technical solution.

Service-orientation ...