A Method for Entity Identification
Information systems are those software systems that are characterized as being data-intensive, transaction-oriented, with a substantial element of human-computer interaction (Loucopoulos and Zicari, 1992). Data modeling is a process of understanding the ‘data aspect’ of a domain of interest, for which an information system is developed, so it plays a vital role in the development of information systems. For example, SSADM takes three perspectives in analyzing the ‘current environment’, namely DFD, LDS (Logical Data structure) and Entity life history (Ashworth and Goodland, 1990; Weaver, 1993). SSADM places a great emphasis on data modeling, as Weaver put it, the Logical Data Model ‘is possibly the most important and ultimately the most rigorous product of an entire SSADM project’, and the Logical Data Model ‘is a vehicle for analyzing the logical structure of an organization’s information’ (Weaver, 1993).
KeywordsMinimal Cover Current Environment Soft System Methodology Information System Development Concept Entity
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- Ashworth, C., and Goodland, M., 1990, “SSADM — A Practical Approach,” McGraw-Hill, London.Google Scholar
- Burrell, G., and Morgan, B., 1979, “Sociological Paradigms for Organisational Analysis,” Heinemann, London.Google Scholar
- Checkland, P., 1981, “Systems Thinking, Systems Practice,” John Wiley & Sons, Chichester.Google Scholar
- Date, C.J., 1995, “An Introduction to Database Systems,” Sixth edition. Addison-Wesley Publishing Company, Reading.Google Scholar
- Elmasri, R., and Navathe, S.B., 1994, “Fundamentals of Database Systems,” Second edition, Benjamin/Cummings, Redwood City, California.Google Scholar
- Feng, J.-K., 1993, Function-oriented data modelling, in: “Systems Science: Addressing Global Issues,” F. Stowell, D. West, and J. Howell, eds., Plenum, London.Google Scholar
- Loucopoulos, P., and Zicari, R., ed., 1992, “Conceptual Modeling, Databases, and CASE,” John Wiley & Sons, New York.Google Scholar
- Sowa, J.F., 1984, “Conceptual Structures,” Addison-Wesley, Massachusetts.Google Scholar
- Weaver, P.L., 1993, “Practical SSADM Version 4,” Pitman, London.Google Scholar