Understanding MIDAS technology

MIDAS provides the mechanism by which client applications and application servers communicate database information. Using MIDAS requires MIDAS.DLL, which is used by both client and server applications to manage datasets stored as data packets. Building MIDAS applications may also require the SQL explorer to help in database administration and to import server constraints into the Data Dictionary so that they can be checked at any level of the multi-tiered application.

Note:You must purchase server licenses for deploying your MIDAS applications.
MIDAS-based multi-tiered applications use the components on the MIDAS page of the component palette, plus a remote data module that is created by a wizard on the Multitier page of the New Items dialog.

remote data modules
Specialized data modules that work with a COM Automation server to give client applications access to any providers they contain. Used on the application server.

provider component
A data broker that provides data by creating data packets and resolves client updates. Used on the application server.

client dataset component
A specialized dataset that uses MIDAS.DLL to manage data stored in data packets.

connection components
A family of components that locate the server, form connections, and make the IAppServer interface available to client datasets. Each connection component is specialized to use a particular communications protocol.


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