Data Modeling of Financial Derivatives: A Conceptual Approach by Robert Mamayev

Data Modeling of Financial Derivatives: A Conceptual Approach by Robert Mamayev

Author:Robert Mamayev [Mamayev, Robert]
Language: eng
Format: epub, mobi, pdf
Tags: Business & Investing, Investing, Computers & Technology, Computer Science, Information Theory, Modeling & Simulation, Databases, Database Design, Education & Reference, Business & Finance, Investments & Securities
ISBN: 9781430265894
Amazon: 1430265892
Publisher: Apress
Published: 2013-12-18T05:00:00+00:00


Figure 5-1. Modeling an employment relationship

An interesting feature of the EMPLOYMENT entity (a relationship that is modeled as an entity) is that it looks similar to the CONTRACT. In fact, EMPLOYMENT may be viewed as a type of contract between a PERSON and an ORGANIZATION, for which the start date attribute signifies the beginning of the employment and the end date attribute signifies the ending of it. Incidentally, the marriage relationship is modeled similarly, involving a relationship between one PERSON and another PERSON.

Subtyping Futures Contracts

Let’s proceed to another simple exercise: subtyping the CONTRACT TYPE (a supertype) into the following two subtypes (Figure 5-2):

FUTURES CONTRACT TYPE

OTHER TYPE.



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