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Semantic Integration Service (SIS) is for Java developers creating data integration systems with the requirement
of unlimited scalability: integration of additional information systems without degradation of
efficiency of the integration system as a whole.
SIS gives semantic access interface for the integration system, operating over application domain
concepts and based on semantically complete model of data (SCM). Data access is made by means of
the query language SCQL which lets formulate queries using application domain concepts only.
The preparatory stage of SIS usage is creation of semantic description for data structures, which is
made semi-automatically. The process has two steps: automatic import of relational tables (views) and
semi-automatic generation of semantic layer for imported tables. The manual part is renaming of concepts
generated automatically from table columns, according to real naming of concepts within the
appropriate application domain. Mapping of semantic layer description to data storage
structures (tables) is tuned automatically within the second step.
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Storing of meta-information (the semantic layer) is made by means of EntryService
- a Fusionsoft product
which is intended for centralized access to distributed objects. The product has unlimited scalability,
which results in SIS's semantic layer having the same property. Tables imported into the semantic
layer may be at any server controlled by one of RDBMS: Oracle, MS SQL, MySQL, DB2
(it is possible to connect to other relational DBMS).
The next stage is the stage of SIS usage: it lets execute SCQL queries to the semantic layer, which are
formulated using application domain concepts only, and not data storage structures. For instance the
query "select all tasks being solved by Fusionsoft company with the help of people older 50" can
be formulated using SCQL as
(Company~Project~Task~Person~Age), (Company = "Fusionsoft"), (Age>50).
Execution of SCQL queries is made by its transformation to SQL (distributed), and SQL is executed by means of
Oracle Heterogeneous Services. Distributed SQL execution can be delegated to any quantity of
Oracle-servers for load-balancing.
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Do you want to know more? Read more... SemanticNet Platform;
A Structured Data Integration System Having Unlimited Scalability and Semantic Access Interface
Attention! You can get the latest version of Semantic Integration Service for free
for non-commercial purposes.
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