OPENworkshop is Thoroughbred's Object-Oriented development environment. It features new evolutionary three-tier development concepts that enhance the way developers build business software. OPENworkshop is Thoroughbred's latest advance in application development technology. OPENworkshop is a complete three-tier development and run-time environment offering much lower development and maintenance costs, a more flexible system for users, and provides users the choice of both graphical and character user interfaces, as well as open database connectivity (ODBC).
An OPENworkshop application is built from Data Classes, Presentation Classes, and Methods. CONNECT directives are used to invoke classes and link one class to another. As a development and run-time environment, OPENworkshop includes Thoroughbred Basic a comprehensive Business BASIC 3GL language; Script-IV, Thoroughbred's 4GL; Dictionary-IV, Thoroughbred's System Object Dictionary; Report-IV and Query-IV, Thoroughbred's reporting and query tools, and Source-IV, Thoroughbred's source code management tool. OPENworkshop is the complete development and runtime system for your mission critical applications.
OPENworkshop redefines the relationships between data and program code, and between application designer and application user. Developers using OPENworkshop design their Data Objects first, and then associate Methods, which are independent modules of program code, with the Data Objects. In OPENworkshop the data controls the application code.
Because individual data names control their own code, OPENworkshop eliminates the concept of a MAIN program. In place of a controlled structure that is imposed on the user through menus and function keys, OPENworkshop provides CONNECT directives, pop-up menus and user interface support that allows the user to control the dialogue with the system.
Objects are packaged with their Methods, and are easy to reuse. Previous work is immediately available to use when creating other Objects with similar properties. Future modifications are automatically reflected in all places where the Object is used.
These benefits are important during initial application design, but even more important during the much longer maintenance life of an application. OPENworkshop adheres to three-tier architecture concepts providing a choice of character or Graphical User Interface (GUI) display, with the same code, and open database connectivity.
Object Technology embodies the concept that any object defined in the system can control the operations and actions that can manipulate it. Objects in OPENworkshop are defined as Classes that can share common attributes and methods. OPENworkshop Classes include Data Classes and Presentation Classes. Other Object Technology concepts supported by OPENworkshop include Methods, Inheritance, Encapsulation, Polymorphism, Recursive Subroutines and Persistence.
Data Classes hold the application data. From the point of view of the application developer the most important Classes of Object are:
Presentation Classes display or print information for the application user to browse, read, or edit. They also allow the user to select subsequent actions.
Methods contain the program code that performs the logic of the application. In an OPENworkshop application, all program code is organized into Methods, each Method being associated with specific actions for classes of data object or presentation object. Methods are written in either Thoroughbred Basic or Script-IV.
The CONNECT directive is the most important directive in OPENworkshop. CONNECT allows "connections" to be made from one Object or Class to another. Views, Screens, Menus, Help, Report, and Query Classes can be "CONNECTed" directly between themselves. The CONNECT directive is the framework that links OPENworkshop Classes and Methods together. It not only invokes the required Object, but also is the vehicle for passing messages to the invoked Object.
Other Object Techonology Concepts
Dictionary-IV is Thoroughbred's system wide Object Definition repository of information used by the system designer to store the definitions and descriptions of the objects. The object definitions include, Formats, Screens, Views, Links, Menus, System Messages, Help Messages, Reports, Queries, and Programs. Dictionary-IV is the foundation for all Thoroughbred Development Environments, and provides the basis for Thoroughbred's three-tier architecture. Character or GUI applications can use the same program code, and have access to any ODBC compliant database, including Oracle.
Thoroughbred Environment is a feature rich, 3GL Business BASIC application language. The features of the Thoroughbred Environment include: Efficient B-Trieve file structure; Multi-key files; Extended variable names; Textual error messages; String and numeric arrays; Operating systems access via shell commands, Pipes, and XCALL; Powerful system, screen, printer, and window management; Business math functions; Transaction processing; APIs to fully integrate Dictionary-IV; and SQL date types.
Script-IV is Thoroughbred's fourth generation (4GL) programming language, that provides a structured, English-like command structure, to program applications. Script-IV can access any Dictionary-IV definition, and automatically manages the "housekeeping" tasks normally associated with 3GL programming. Script-IV code can be seamlessly integrated with code from the Thoroughbred Environment 3GL.
Report-IV and Query-IV
System reports and queries are fully supported with Report-IV and Query-IV. Report-IV is a comprehensive report-writer enabling the designer to create complex system reports. Report-IV supports multi-file access, data manipulation, report output format and user input to provide the exact report desired. Query-IV is Thoroughbred's SQL Query tool featuring a "point and click" selection interface, and the ability to access the data via SQL command syntax. Query-IV is designed for non-programming users who want quick and comprehensive access to their data.
Source-IV is a full-featured source code management system that provides information in revisions of software programs, a full-featured editor for maintenance of 3 or 4GL programs and numerous system utilities including program backup and restore utilities.
OPENworkshop - The Complete Development and Run-time System
OPENworkshop is the complete environment to develop and run mission critical applications. OPENworkshop supports virtually any operating system including UNIX, Linux and Windows. Applications designed in OPENworkshop are fully portable to any supported environment.