Application Structure

Top Level

• The user interface presents the application to the user. This includes all the forms menus etc.
  
• The user interface uses the accounting engine to retrieve and store business objects.
  
• The user interface relies on the Accounting Engine to apply all the business rules
  
• The user interface is an ActiveX Exe and a VBA host application
  
• The User interface includes a wide range of user interface objects that generate events
  
• It also 'mirrors' the business objects from the accounting engine and the database objects from the database engine.
  

Next Level

• Our Accounting Engine holds all the Business Objects. This holds all the business data and applies the business rules.
• The Accounting Engine is an ActiveX DLL
• Business objects are exposed as COM objects
• The Accounting Engine uses the Database engine to store information and retrieve information from the database.

Next Level

• We interface with the database programmatically through our database engine
• This is an ActiveX DLL that uses the ODBC API to achieve a high performance database connection
• Database features are exposed as COM objects

Lowest Level

The SQL database.

Technical resources

Ian Richards developed the code for Accounting Office and any technical enquiries can be made directly here i.richards@accountingoffice.co.uk

The development manual for Accounting Office can be downloaded from here

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