A. Borgida. Thoughts on accommodating exceptions to (type) constraints in Information Systems. In Persistence and Data Types Papers for the Appin Workshop, August 1985.  Home/Search   Document Not in Database   Summary   Related Articles

....Because we are using a metamodelling approach, the additional flexibility is traded for the cost of less structure. For example, what happens when querying on an object for an attribute that it was already removed For this problem we can apply the exception handling mechanism discussed in [Bor85a]. In this paper, an Information System is defined to be a computer system maintaining knowledge about some aspect of the world and consisting of two main parts: a database of persistent facts and a collection of application programs ( transactions ) which are run against the database in order to ....

A. Borgida. Thoughts on accommodating exceptions to (type) constraints in Information Systems. In Persistence and Data Types Papers for the Appin Workshop, August 1985.

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