Reference Architecture for Enterprise Integration CIMOSA GRAIGIM PERA
- Slides: 36
Reference Architecture for Enterprise Integration CIMOSA GRAI/GIM PERA Dima Nazzal
Definitions Enterprise: a complex set of business processes that can be designed to accomplish a specific set of objectives. Enterprise integration (agile manufacturing, business process reengineering, CIM): n The coordination of the operation of all elements of the enterprise working together in order to achieve the optimal fulfillment of the mission of that enterprise as defined by enterprise management. 1 Architecture: n A description (often graphical) of the structure of something 1. n A structured plan, a framework on the basis of which a product or an organization of an enterprise can be constructed 2
Definitions Reference model: a general model that can be used as a base to derive other models from. Reference Architecture: is a structured set of models which represent the building blocks of the system. 3 Enterprise Integration Reference Architecture: is a framework in which enterprise related concepts are organized. The most known reference architectures are: CIMOSA, GRAI-GIM and PERA
The Enterprise Model Requirements The enterprise model which fits the specific objectives of the particular enterprise should: n n n identify the different processes in the enterprise. contain the machines, the information, the transfer of information, the human involvement and the functions that have to be carried out. address design activities, manufacturing processes, the way materials are ordered, moved and transformed into products.
Enterprise Modeling Enterprise modeling has to fulfill several requirements to achieve efficient and effective enterprise integration: n n provide a modeling language easily understood by non. IT professionals, but sufficient for modeling complex industrial environments. provide a modeling framework which: w covers the life cycle of enterprise operation from requirements definition to end of life. w enables focus on different aspects of enterprise operation by hiding those parts of the model not relevant for the particular point of view. w supports re-usability of models or model parts
Open System Architecture for CIMOSA In 1985, the ESPRIT Consortium AMICE started to work on the definition and specification of a CIM architecture for enterprise integration. CIMOSA (completed in 1996) is pre-modeling solution which provides a framework based on the system life cycle concept
CIMOSA Reference Architecture supports the description of the enterprise, from the management level to the shop floor level CIMOSA consists of: n n n Enterprise modeling framework (reference architecture) Enterprise modeling language Integrating infrastructure
CIMOSA Enterprise RA
CIMOSA Enterprise Modeling Constructs (building blocks)
CIMOSA Process Based Enterprise Modeling Domains with interacting Domain Processes
CIMOSA Process Based Enterprise Modeling
CIMOSA Process Based Enterprise Modeling Decomposition of a Domain Process into Business Processes and Enterprise Activities
CIMOSA Process Based Enterprise Modeling
CIMOSA Process Based Enterprise Modeling Domain Process Representation as a network of Enterprise Activities
CIMOSA Process Based Enterprise Modeling
CIMOSA Process Based Enterprise Modeling Functional Operations executed by Functional Entities (Resources)
CIMOSA Process Based Enterprise Modeling FE 1: vehicle controller FO 1: set down vehicle FO 2: clasp the lot X X FO 3: pull up vehicle X
CIMOSA Integrating Infrastructure The Integrating Infrastructure provides a set of service entities for model engineering and enterprise operation control.
Relations between the Enterprise System Life Cycle and the progress of the modeling process
GIM-GRAI Integrated Methodology Developed by the laboratory for automation and production at the university of Bordeaux- France since 1970’s. GIM is composed of the following elements: n GRAI conceptual model: a representation of basic concepts of a manufacturing system decomposed into three sub-systems: physical system, decision and information system. n GIM modeling framework (RA) with three dimensions: views, life cycle, and abstraction level. n GIM structured approach: guide to show to perform analysis and design of the manufacturing system in three main phases: analysis, user-oriented design, and technical-oriented design. n GIM modeling formalisms (languages): GRAI grid and GRAI nets for decision system modeling, IDEF 0 and stock/resource for physical system modeling, ER for information system modeling, IDEF 0 for functional system modeling.
GIM Conceptual Model
GIM Modeling Framework and RA
GIM Structured Approach
GIM Modeling Formalisms
Purdue Enterprise Reference Architecture - PERA was developed at Purdue University during the period 1989 -91. The simplifying concepts of systems engineering in enterprise integration n n n The mission Separation of functions Networks of tasks The place of the human The life cycle Planning and organization of the integration effort (the master plan)
PERA - Enterprise Integration Project Phases The master plan Phase Title Description 1 Identification of the Enterprise Business Identity and boundaries of the enterprise 2 Project Concept 3 Project Definition w. Mission, vision and values w. Operational policies w. Identify requirements, tasks and modules w Develop flow diagram or other models of the Enterprise Entity 4 Project Specification or w. Identify human tasks, initial choice and Preliminary Design specification of human organization w. Identify information and control equipment and mission fulfillment equipment
PERA - Enterprise Integration Project Phases Phase Title Description 5 Completion of all detailed design needed for construction phase Detailed design of human and organizational information, control, customer product and service components of the enterprise 6 Implementation, test and commissioning phase Conversion of detailed design to actual plant elements, testing, operational trials and acceptance or commissioning 7 Operations phase The enterprise is carrying out its mission 8 Decommissioning Enterprise has come to the end of its economic life
PERA RA
PERA- Models and tools involved at each phase of the life cycle
GERAM The IFAC/IFIP Task Force on Architectures for Enterprise Integration was formed by IFAC (The International Federation of Automatic Control) and IFIP (The International Federation for Information Processing) in August 1990. The Task Force objective was to contribute a single, universally accepted architecture, framework, or model for enterprise integration. They developed the architectural specification GERAM (Generalized Enterprise Reference Architecture and Methodology). Task Force recognized three RA: n n n CIMOSA GRAI-GIM PERA The "matrix" model for GERAM was developed by combining the distinctive characteristics of each of three studied architectures into one diagram.
Components of the GERAM Framework
Comments on CIMOSA liked Did not like w Structuring of RA into generic w Constructs definitions are not very and partial modeling levels w Support for function, information, resource, and organization modeling views. w Specifying the processes and exchange of information using domain processes, events, and object views. clear. w. Requirements definition level modeling is not well defined w. No reference models to design the system
Comments on GIM-GRAI Liked Did not like w Addition of the decisional view. w Requirements definition level w Some reference models have been modeling is not well defined. developed
Comments on PERA Liked Did not like w The focus on preparing the master w lack of modeling formalisms. plan w methodology is not clearly w. Emphasis on defining the role of defined human w covers all phases of the enterprise life cycle
References 1. T. J. Williams. 1998. “PERA and GERAM – Enterprise Reference 2. iies. www. ecn. purdue. edu/IIES/PLAIC/PERA-GERAM_10 -98. pdf http: //cimosa. cnt. pl/Docs/Primer/primer 0. htm 3. 4. 5. Architecture for Enterprise Integration”. D. Chen, B. Vallespir and G. Doumeingts. 1997. “GRAI integrated methodology and its mapping onto generic enterprise reference architecture and methodology” Computers in Industry. V 33 p 387 -394. G. Doumeingts B. Vallespir, and D. Chen. 1995. “Methodologies for designing CIM systems: A survey”. V 25 p 263 -280 http: //www. cit. gu. edu. au/~bernus/taskforce/geram/versions/ geram 1 -6 -3/v 1. 6. 3. html
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- Zachman framework case study
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