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![]() IntroductionWhat is BG-BASE?BG-BASE is a PC-based database application written primarily to handle the information management needs of institutions and individuals holding living and/or preserved collections of biological material, including botanic gardens, arboreta, zoos, herbaria, museums, libraries, university campuses, horticultural societies and private collections. The objective is to develop and share a standard design that ensures compatibility, and at the same time one that allows for fine-tuning to meet specific individual needs. The result is a powerful, well proven system that not only facilitates basic inventory control, but also enables users to fully document, label and curate their collections so that these collections, no matter how large or small, can be of the highest possible value to the research, conservation and education communities. BG-BASE is compatible with the relevant international data standards, including the International Transfer Format for Botanic Gardens Records (ITF 1) on which one of its core modules is based. Initiated in 1985 at the request of the Arnold Arboretum of Harvard University in Boston (US) and the Threatened Plants Unit (TPU) of the World Conservation Monitoring Centre (WCMC) in Cambridge (UK), it is now used around the world in 169 sites in 26 countries. The system is regularly updated and enhanced based on user input; its two development and support centers are the Royal Botanic Garden Edinburgh (UK) and BG-BASE, Inc., located in in Topsham, Maine (US) BG-BASE is designed to manage information in six broad categories:
Its aim is to provide a seamless interface to taxon-, specimen-, bibliographic-, image- and geographically-based information. Instead of having separate database systems for each of these kinds of data, they can be managed using a single, fully integrated system. BG-BASE is unique in offering this breadth and depth of information management across such a wide range of topics. DesignBG-BASE can be used on stand-alone machines or as part of a Local Area Network (LAN). BG-BASE is composed of a series of modules, each of which links with the other modules using shared fields / tables and a common user interface that does as much or as little as the user requires. Within the modules information on a wide range of topics can be managed:
No single installation of BG-BASE uses all of its modules or functionality; rather, each uses a different subset of the whole. However, all users are fully compatible with one another because all share the same field definitions in a common data dictionary. In addition to the standard fields, there are 5-10 user-defined fields in each major database table that can be used to meet specific needs.
This unsurpassed flexibility is possible because BG-BASE is built on a relational database management system whose variable-length and multivalue field technology permits all BG-BASE users to share the same structure and master data dictionary without wasting data storage space for fields and tables that they are not currently using. Since any field or record can vary in length, there is never a need to truncate a long piece of information - such as a scientific name or the title of a book because the system expands and contracts to fit the data automatically. Not only does variable-length field technology eliminate the need to truncate data (or the need to redesign the database when a longer piece of information needs to be stored), it also results in a tremendous space savings compared to the more typical fixed-length field design employed by most databases. Data storage requirements are generally about 30 to 35 times smaller than what fixed-length field systems need to store the same data since BG-BASE fields are not padded out to a predetermined size as they are in Access, dBASE, FoxPro, Paradox, etc. There is no limit to the number of records that can be stored in the system, other than limitations of hard disk space. There is also no limit to the number of records that may be stored per database table. Each field has context-sensitive help associated with it. Because of the variable-length nature of the underlying database, BG-BASE sites may choose to use or not use any particular fields (some fields are, of course, required and are defined as such in the system's data dictionary) without storing blank spaces for unused fields and without sacrificing compatibility with other BG-BASE sites. Users can later choose to use any field that they had previously not used, without affecting the existing data. The system maintains over 600 indexes in real time; these indexes allow for full-word, partial-word searches. What kinds of questions can BG-BASE answer?There is virtually no limit to the number and kinds of questions that BG-BASE can answer (assuming that the appropriate information has been entered into the system!). The powerful query tool S/LIST Report Builder supplied with each installation is enhanced by a wide variety of BG-BASE-specific query tools and reports. Examples of the types of questions that can easily be answered include:
© Copyright BG-BASE, Inc., 1997-.
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