A solution architecture template (SAT) is a specification containing a sub-set of Architecture Building Blocks of the EIRA© and some optional Solution Building Blocks. It focuses on the most salient building blocks needed to build an interoperable solution addressing a particular business capability involving business information exchange.

A solution architecture template can include additional interoperability specifications. It is usually applied within a community. Acting as a template for and guiding the development of a certain kind of solutions (and their specific architectures).

A solution architecture template can exist at different levels of detail. For example, it can be used to describe a template for national portals offering e-services to its citizens. It can also be used to describe a template on how to securely exchange files among public administrations.

A solution architecture template consists of the following:

  • A goal and a description of the particular supported business capabilities and the involved business information exchanges;
  • A sub-set of EIRA© core Architecture Building Blocks covering all EIRA© views;
  • A set of specific Architecture Building Blocks extending EIRA©'s views enabling specific functionalities to be provided by implementations derived from the SAT;
  • A set of interoperability specifications for Architecture Building Blocks in the SAT;
  • A narrative for each EIRA© view.

Source: European Interoperability Reference Architecture (EIRA version 3) (url) (with information on the 3rd release at the website of the ISA² - Interoperability solutions for public administrations, businesses and citizens).