Server Side

Component		Description
Transport
	TAstaIOServerWire	AstaIO has an abstracted transport layer that can use any mechanism for transport. Typically this will be tcp/ip but could be shared memory or something like namedpipes. The TAstaIOServerWire has an easy to use Messaging layer to be able to communicate with remote clients.
	TAstaIOSocketServerWire	AstaIO cross platform native tcp/ip implemenation. The first builds of AstaIO have this method fully implemented. Future builds will include those listed below.
	TAstaIOIndyServerWire	Implementation using Indy
	TAstaIODXSocksServerWire	Implementation using DXSocks
	TAstaIOIPWorksServerWire	Implementation using IPWorks
	TAstaIOStringWire	Implementation using Delphi Long Strings so that a client and server could be compiled in the same exe without tcp/ip installed.
	TAstaIOUserList	Maintains a list of connected users along with access to server side user information including database connection, username. Any additional data can be stored in an AstaIOParamList and there are options to create your own TObject descendents as parts of the TUserRecord.
Database
	TAstaIODatabasePlugin	Provides events to allow any Delphi 3rd Party Database component to be used with AstaIO. By providing the ability to support SQL Selects, Parameterized Exec Queries, Transactions, MetaData calls and Stored procedure support AstaIO can support client side SQL, a JDBC Driver and the AstaIOSQLExplorer that allows for all server information to be accessed over the internet.
	TAstaIOMetaData	Allows metadata calls to any database to be used in standard AstaIO format so that tablenames, fieldnames, view, storedprocedure, foreignkey and other metadata information can be accessed uniformly from remote AstaIO clients.
	TAstaIODBInfo	In the past, ASTA servers have used API calls to retrieve metadata information. Using the BDE, ADO, ODBC provided metadata information but it was always in a different format. FieldNames and field types would vary according to the API. The TAstaIODBInfo component allows SQL to be defined to retrieve metadata information. This then allows Oracle (for example) Metadata to be retrieved in a consistent format no matter what Delphi or Kylix Database component was used on the server.
	TAstaIOMSQLServerInfo	MS SQL Server descendent of TAstaIODBInfo
	TAstaIOIBInfo	Interbase descendent of TAstaIODBInfo
	TAstaIOOracleInfo	Oracle descendent of TAstaIODBInfo
	TAstaIOASAInfo	Adaptive Server Anywhere (SQL Anywhere) descendent of TAstaIODBInfo
Middle Tier Business Objects
	TAstaIOServerMethodResultSet	Allows server side "Methods" to be defined with any number of Parameters that return a result set. On the client a TAstaIOServerMethodDataSet is used.
	TAstaIOServerMethodExec	Allows server side "Methods" to be defined with any number of Parameters.
	TAstaIOProvider	Provides a result set that allows a TDataSet to be connected and allows for updates through SQL that AstaIO Generates. Also allows for Edits,Inserts and Deletes to be intercepted so that custom or additional SQL can be generated on the server.
	TAstaIOIProvider	Similar to the MIDAS/DataSnap Provider, the TAstaIOTProvider implements the IProvider Interface on the server. Instead of allowing AstaIO to generate SQL for update, inserts and deletes is uses the IProvider Interface of the Delphi/Kylix Database component used on the server to call ResolveToDataSet. Optionally it can allow ASTA to generate SQL. There are also events that can be used to get in between this process.
SOAP Support
Future Versions of AstaIO will include the ability for ServerMethods to be accessed as SOAP services through an ISAPI DLL or Apache Plugin for Linux. This architecture will allow for load balancing and fail over for SOAP Services		Since AstaIO servers handle all threading and database connection pooling by allowing AstaIO ServerMethods to be made available as SOAP services, developers will be able to provide access to their server methods through SOAP to any client that can make a SOAP Request.

Client Side

Component		Description
Transport
	TAstaIOClientWire	Base class that uses Interfaces so that a transport layer can be implemented using any protocol.
	TAstaIOClientLeanWire	Messaging class descended from TAstaIOClientWire using the AstaNative Sockets that does not use AstaIOParamLists so that db.pas is not linked in the application. This allows for much smaller EXE's to be created for message only clients (no database requirements). Used in the AstaIOClientAdmin that can show server logs.
	TAstaIONativeClientWire	Messaging class using the AstaNative sockets used for database clients that allows the use of AstaIOParamLists
In-Memory Datasets
	TAstaIODataSet	Full TDataSet implementation
	TAstaIOAuditDataSet	TAstaIODataSet that can support CancelUpdates and RevertRecord. Tracks all edits,inserts and deletes implements an OldValuesDatASet that contains the original value of any edit or delete.
Client-Side SQL
ASTA pioneered the concept of Client Side SQL in 1998 with ASTA 1.0 was released. N Tier theory holds that the business logic should be maintained on the middle tier. AstaIO supports this fully with ServerMethods and AstaProviders. But Client Side SQL is still a very fast way to convert applications to run over the internet. AstaIO Servers can be run as binaries to support client side SQL and Win32, Linux, Palm, Wince and Java Clients.
	TAstaIOClientQuery	SQL Client Component
	TAstaIOClientTable	Table Client Component. Essentially a select * from tablename component.
	TAstaIOClientStoredProc	Stored Procedure Client Component
	TAstaIOMetaDataDataSet	Brings back metadata information from AstaIO Servers
Middle Tier Business Clients
	TAstaIOProviderDataSet	Links to server side TAstaIOProviders
	TAstaIOIProviderDataSet	Links to server side TAstaIOIProviders
	TAstaIOServerMethodDataSet	Links to server side TAstaIOServerMethodResultSets
	TAstaIOServerMethod	Links to Exec only server methods that don't return result sets but only Params. Not a TDataSet descendent.