We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
Published online by Cambridge University Press: 05 June 2012
Introduction
This chapter describes the way that spatial and attribute data are structured and stored for use within a GIS. It provides the necessary information about data models and database design to enable archaeologists unfamiliar with computer databases to make appropriate decisions about how best to construct a system that will work well and efficiently.
A database is a collection of information that is structured and recorded in a consistent manner. A card catalogue that records information about archaeological sites, such as their location and date, is as much a database as a full-fledged web-searchable digital sites and monuments record. Digital databases differ from their paper counterparts mainly in that they are dependent on database software for searching and retrieving records. The complexity of the data structure will also be increased as digital databases are often broken into several different related files. This reduces the amount of duplicated information in a database, improves access speed and also enables the retrieval of small subsets of data rather than complete records. Software that is used to store, manage and manipulate data is referred to as a Database Management System (DBMS). The objectives of a DBMS are to store and retrieve data records in the most efficient way possible, from both the perspective of the overall size of the database and also the speed at which that data can be accessed.
The technology of DBMS is a major research focus in computer science.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
