Integrating data processing systems: in theory and in practice |
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Contents
Chapter | 13 |
Integration of Internally Constructed Systems | 34 |
The Spectrum of Integration | 46 |
Copyright | |
15 other sections not shown
Common terms and phrases
activity amount application systems assemblies centralized environment chain of abstraction chandelier perspective code and data collections of data common consider costs data and processes data base data definition data dictionary data element data physically data redundancy data structures data view DBMS defined definition of data degree of integration dv's entities example existing systems Figure frontal perspective gration implemented integrated environment integrated system inventory issues level of abstraction long-term loosely decentralized environment maintenance major ment mode of operation network monitor occurrence of data occurs on-line Operational systems organization overlap ownership payroll physical units problems process definition pv's relationship reorganization requirements resistance scope of integration shown in Fig single processing source code stage of integration subsidiary processors subsystem level system integration tightly decentralized environment tion type of change type of data un-unified unified unintegrated unit of data update user's environment