UKOLN AHDS Digitising Data For Preservation


Digitisation is a production process. Large numbers of analogue items, such as documents, images, audio and video recordings, are captured and transformed into the digital masters that a project will subsequently work with. Understanding the many variables and tasks in this process - for example the method of capturing digital images in a collection (scanning or digital photography) and the conversion processes performed (resizing, decreasing bit depth, convert file formats, etc.) - is vital if the results are to remain consistent and reliable. By documenting the workflow of digitisation, a life history can be built-up for each digitised item. This information is an important way of recording decisions, tracking problems and helping to maintain consistency and give users confidence in the quality of your work.

What to Record

Workflow documentation should enable us to tell what the current status of an item is, and how it has reached that point. To do this the documentation needs to include important details about each stage in the digitisation process, and its outcome.

By recording the answers to these five questions at each stage of the digitisation process, the progress of each item can be tracked, providing a detailed breakdown of its history. This is particularly useful for tracking errors and locating similar problems in other items. The actual digitisation of an item is clearly the key point in the workflow, and therefore formal capture metadata (metadata about the actual digitisation of the item) is particularly important.

Where to Record the Information

Where possible, select an existing schema with a binding to XML:

Quality Assurance

To check your XML document for errors, QA techniques should be applied:

Further Information