Message-oriented middleware (MOM) technologies are
also regarded as middleware, which may include traditional message busses or enterprise service
busses (ESBs). Conversely, software platforms are akin to frameworks that enable languages
to run. This category may also include operating systems, runtime libraries, and virtual
machines.
LEGACY SOFTWARE. ???Legacy??? refers to existing software assets that are regarded as applications.
These include business and technology software executables that already operate in the
production environment. The term ???legacy??? also includes deployed organizational services such
as Web services and even services that are running on a mainframe or other platforms and do
not comply with Web service technologies and standards. Third-party vendor applications, service
consumers, and partner services that operate outside of an organization are also conceived
as legacy software assets. Customer Profile Service, Accounts Payable Application, or Trading
Consumer are examples of existing and operating legacy software products, offered by third-party
vendors or custom built by an organization??™s internal development personnel.
REPOSITORIES. Repositories play a major role in most service-oriented modeling activities.
This software category is characteristically provided by third-party vendor products that require
organizational adoption and integration policies.
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