Define ole? Explain about ole features and its specifications?
Answers
Answer:
OLE is a framework developed by Microsoft (way back in Windows 3.1) that allows you to take objects from a document in one application and place them in another. For example, OLE may allow you to move an image from a photo-editing program into a word processing document.
OLE for Process Control Specification (OPC)
OPC is a series of open standards for open connectivity. OPC’s first standard is known as the OPC data access specification (OPC DA). There are now hundreds of OPC data access servers and clients.
OPC technology attempts to provide lower connectivity costs to software vendors, while providing user flexibility. The original specification standardized process data acquisition, which was also used for other types of data such as alarms, events, historical data and batch data. Users may also select software suppliers based on features; and custom interfaces are not required.
Other advantages of OPC technology include:
Higher-Quality Connectivity: The OPC DA specification codified the interconnectivity mechanism and testing for compliance.
Standardized Software Components: These allow shorter user project cycles, lowering costs.
Technical Reliability: OPC is based on industry standards.
Accessibility:OPC files are accessible via ZIP utilities.