Based on information engineering information systems planning database is a source of development projects. These new database development projects is usually in order to meet the strategic needs of organizations, such as improving customer support, improve product and inventory management, or a more accurate sales forecast. However, many more database development project is the bottom-up approach emerging, such as information system user needs specific information to complete their work, thus beginning a project request, and as other information systems experts found that organizations need to improve data management and begin new projects. Bottom-up even in the circumstances, to set up an enterprise data model is also necessary to understand the existing database can provide the necessary data, otherwise, the new database, data entities and attributes can be added to the current data resources to the organization.
Both the strategic needs or operational information needs of each database development projects normally concentrated in a database. Some projects only concentrated in the database definition, design and implementation of a database, as a follow-up to the basis of the development of information systems. However, in most cases, the database and associated information processing function as a complete information systems development project was part of the development.


基于信息工程的信息系統(tǒng)規(guī)劃是數(shù)據(jù)庫(kù)開發(fā)項(xiàng)目的一個(gè)來(lái)源。這些開發(fā)新數(shù)據(jù)庫(kù)的項(xiàng)目通常是為了滿足組織的戰(zhàn)略需求，例如改善客戶支持、提高產(chǎn)品和庫(kù)存管理或進(jìn)行更精確的銷售預(yù)測(cè)。然而許多數(shù)據(jù)庫(kù)開發(fā)項(xiàng)目更多的是以自底向上的方式出現(xiàn)的，例如信息系統(tǒng)的用戶需要特定的信息來(lái)完成他們的工作，從而請(qǐng)求開始一個(gè)項(xiàng)目，又如其他信息系統(tǒng)的專家發(fā)現(xiàn)組織需要改進(jìn)數(shù)據(jù)管理而開始新的項(xiàng)目。即使在自底向上的情況下，建立企業(yè)數(shù)據(jù)模型也是必須的，以便理解現(xiàn)有的數(shù)據(jù)庫(kù)是否可以提供所需的數(shù)據(jù)，否則，新的數(shù)據(jù)庫(kù)、數(shù)據(jù)實(shí)體和屬性都應(yīng)該加到當(dāng)前的組織數(shù)據(jù)資源中去。
無(wú)論是戰(zhàn)略需求還是操作信息的需求，每個(gè)數(shù)據(jù)庫(kù)開發(fā)項(xiàng)目通常集中在一個(gè)數(shù)據(jù)庫(kù)上。一些數(shù)據(jù)庫(kù)項(xiàng)目?jī)H僅集中在定義、設(shè)計(jì)和實(shí)現(xiàn)一個(gè)數(shù)據(jù)庫(kù)，以作為后續(xù)信息系統(tǒng)開發(fā)的基礎(chǔ)。然而在大多數(shù)情況下，數(shù)據(jù)庫(kù)及其相關(guān)信息處理功能是作為一個(gè)完整的信息系統(tǒng)開發(fā)項(xiàng)目的一部分而被開發(fā)的。