Definition
Object Linking and Embedding (OLE) is a proprietary technology developed by Microsoft that allows embedding and linking of documents and data across different computer applications. The data linked or embedded in this manner can be edited using the original application within another host application.
Examples
- Embedding an Excel Spreadsheet in a PowerPoint Slide: When an Excel spreadsheet is embedded in a PowerPoint presentation, it appears as part of the slide. The data is static and does not change unless edited manually.
- Linking a Visio Diagram in a Word Document: When linked, any modifications made to the initial Visio diagram will be automatically updated in the Word document.
- Inserting a Photoshop Image in a Word Document: The image can be either embedded for independent static copy editing or linked to the source file for automatically reflecting changes made to the original image.
Frequently Asked Questions (FAQs)
What is the difference between linking and embedding objects in OLE?
Answer: Embedding an object creates a static copy of the data within the host application, while linking creates a dynamic reference that updates automatically if the original data changes.
How does OLE differ from Dynamic Data Exchange (DDE)?
Answer: OLE provides richer capabilities by allowing objects to maintain their native characteristics and be edited in the source application’s environment. DDE is an older Windows technology for inter-process communication that supported more limited data exchange and was more cumbersome to use.
Can OLE objects be edited in the host application?
Answer: Yes, double-clicking an OLE object typically opens the source application’s interface within the host application for in-place editing.
Is OLE still widely used today?
Answer: While OLE is not as widely used today due to modern alternatives like COM (Component Object Model) and other methods of data embedding and linking, it remains relevant in some older applications and workflows.
What file formats support OLE?
Answer: Commonly, Microsoft Office applications such as Word, Excel, and PowerPoint, support OLE. Some specialized applications like CorelDRAW and Adobe Acrobat also offer OLE functionality.
Related Terms
- Dynamic Data Exchange (DDE): An older communication protocol for data exchange between applications in Windows.
- Component Object Model (COM): A Microsoft-developed interface standard that enables software components to communicate.
- ActiveX: A framework for defining reusable software components that can be shared across multiple programs.
Online References
Suggested Books for Further Studies
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“Programming for the Absolute Beginner” by Jerry Lee Ford Jr.
- A beginner’s guide that introduces programming concepts, including OLE.
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“Microsoft Office 2019 Step by Step” by Joan Lambert and Curtis Frye
- Comprehensive guide to mastering the features of Microsoft Office, including embedding and linking objects.
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“Inside OLE” by Kraig Brockschmidt
- Detailed book exploring the capabilities and technical details of OLE within the Windows operating system.
Fundamentals of Object Linking and Embedding (OLE): Computers and the Internet Basics Quiz
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