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Welcome to the Apache Tuscany SCA User guide. Here you will find information aimed to help you develop SCA components and applications using Tuscany's Java SCA implementation.

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[Introduction|#Intro]
[Obtaining a Tuscany Java SCA Implementation|Obtaining a Tuscany Java SCA Implementation]
[#Running the Calculator Sample]
[Running additional samples|Running the samples]
[#Building your own Calculator Application]
[Building an Application|Building an Application]
Using Extensions\\ {section}

h3. {anchor:Intro}{color:#0099cc}Introduction{color}

Tuscany is based on Service Component Architecture (SCA). SCA is a simple model for creating service-oriented applications. SCA also provides a way to represent services in a variety of languages and a model for associating poicies with services.

Service Component Architecture (SCA) is a simple model for creating service-oriented applications.

Service Oriented Architecture (SOA) is an architectural approach driven by the need to overcome the challenges of tightly coupled and department-specific applications. SOA promises benefits such as improved business agility, improved flexibility, cost reduction, and the easy sharing of information in heterogeneous and distributed environments.

Service Component Architecture (SCA) addresses the complexity of developing an SOA solution through its simple model for creating service-oriented applications for the whole enterprise - from the client to the back-end. 

h3. {anchor:Running the Calculator Sample}{color:#0099cc}Running the Calculator Sample{color}



h3. {anchor:Building your own Calculator Application}{color:#0099cc}Building your own Calculator Application{color}
h4. {color:#0099cc}Components {color}
Compents are the building blocks for creating SOA Applications. They contain the information that defines the program logic or implementation (component implementation), how the component interacts with other components (component type) and defines how it fits in with the other parts of the soluion (composition/assembly).

h4. {color:#0099cc}Service Component Descritpion Language (SCDL) {color} 

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