Titlebook: Object-Process Methodology; A Holistic Systems P Dov Dori Book 2002 Springer-Verlag Berlin Heidelberg 2002 Natural.Softwareentwicklung.Syst

一再困扰

endoscopy

Aggregation and Exhibition example, a table. Without describing it, we cannot determine its function: is it for dining, studying, or displaying artifacts? We cannot tell what material it is made of: is it plastic, metal, or wood? What are its dimensions? Is the tabletop round, square or perhaps some other shape? How many legs does the table have, and how long is each?

catagen

Systems and Modelingesses as the fundamental building blocks of the universe. In the chapters that followed, we have learned how these building blocks can be combined in a variety of ways to model ever more complex things, which are still objects and processes. Having studied structure and dynamics, we are now ready to discuss systems.

enormous

A Taste of OPMsocietal systems. Trying to figure out what his senses are telling him and how to construct a model of the surrounding reality, this creature is in a situation not unlike that of a human system developer, who is beginning to evolve a new system in an unfamiliar domain. Lacking sufficient knowledge a

INCH

Object-Process Diagramsnd therefore widely used. As Cook (1999) noted, “with diagrams the meaning is obvious, because once you understand how the basic elements of the diagrams fit together, the meaning literally stares you in the face.” This is one of the premises OPM is built upon. Diagrams contain symbols for objects,

入伍仪式

Commonplace

反话

Dynamicstes to attain its function. Time is an essential concept in analyzing the dynamic aspect of systems. An important motivation in the development of OPM has been to strike a needed balance in systems modeling between the structural and procedural aspects of a system. OPM is designed to incorporate str

ACE-inhibitor

Structurestructure can be viewed as a snapshot — an account of the system, or part of it, at some point in time. The snapshot captures the system at some state, at which specific relationships between objects hold. Structure is contrasted with the complementary dynamic aspect of the system, or its behavior,

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Aggregation and Exhibitions. Without the ability to mentally take things apart and examine their features, our ability to study systems would be greatly hindered. Consider, for example, a table. Without describing it, we cannot determine its function: is it for dining, studying, or displaying artifacts? We cannot tell what m