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Methodologies > Soft Systems Methodology
SSM Overview:
SSM is a general methodology suitable for soft systems or ill-conditioned system or situation which mostly found in Human Activity Systems HAS. It was developed by Peter Checkland through more than 200 rojects as he tried to apply the ideas of hard system thinking and engineering project to soft problems. SSM methodology, which formalized in 1981, emphasizes the total system approach in solving problems or describes situations by considering all stakeholders and their interacting elements. Checkland represented those stake holders as CATWOE as an abbreviation for Customer, Actor, Transformation, World view, Owner, and Environment. The methodology spread in various application since its introduction. Now it is integrated with other methodologies specially those who do not cover the early stages of development as SSADM or OOSADM. TUM proposed by the author adopts this methodology for problem definition and the development of conceptual moel. This link will direct you to SSM integration with SSADM. Computing.
Fundamentals:
The figure shows the stage of the methodology and Checkland had pointed out that one of the most important principles of his methodology is that social systems can not be studied in laboratories, and without experiencing the problems and learning from its evolution, system transforms into an abstract representation of equations and thus becomes incompatible with the most important rules to deal with social systems which is recognizing that models of social systems may not give the same results in all circumstances, but can only recover its behavior in an acceptable manner
SSM
 
 
Root defition
System Analysis and Design:
System analysis and design are concerned with the investigation of an organization and the design and implementation of a computerized solution to that organization needs. To analyze a system is to identify its components (devices, people, rules and procedures) and their interrelationships in order to determine its objectives, requirements, and priorities. The analyst must find ways of representing organization as a whole system, taking into consideration any economic behavioral and technical constraints.
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