AN INTRODUCTION TO THE GOAL-DRIVEN IT ARCHITECTURE FOR AN AGILE ENTERPRISE
Well-organized business process models produce the actual value of the enterprise and puts it into the hands of customers.
But these process models are not sufficient to respond intelligently to changes, because their activities are not aware of business capabilities, nor controled by high-level goals (vision, strategies, tactics).
Services that trace business processes at the IT system level need to be based on the business capabilities, that have to be configured according to service levels expected from these capabilities. They also need to be orchestrated by high-level goals to allow the resulting IT systems architecture to be aligned swiftly and coherently to changes.
By the use of business capabilities ( “what" the organization does ) instead of business processes ("how" the organization executes its capabilities), the focus is on the stability of how you operate.
With strategies and tactics that are realized by these processes, the focus is on measuring dynamic results of these processes and providing the capacity to evolve your decisions as quickly as possible in order to fine-tune these results to your changing environment.
The Business Motivation Model Diagram (BMM) referenced in the figure below shows how business processes realize strategies and tactics being guided by business rules.
As shown in the figure, business goals as part of the ends drive courses of actions (strategies and tactics), directives (rules and policies) till business processes.
Figure 1 : The Business Motivation Model for the Business Governance in a Volatile World [BMM] of the Business Rules Group voted by the OMG in September 2005
According to these elements of the Business Motivation Model and their relationships (indicated using dashed circles from right to left), the following schema shows for a Profitable WebSale Company vision, a partial instantiation of the relationships from ENDS, throughout MEANS and DIRECTIVE until BUSINESS PROCESSES.
The diagram below is elaborated using the BizModeler tool from Xactium.
Figure 2 : A Partial illustration of the Business Motivation Model for a "Profitable WebSale Company" Vision using the BizModeler BMM Modeling tool from Xactium.
On the basis of these elements and their relationships, the figure 3 below shows an hierarchical view and detailed contents for the business goal, strategy and tactics that support this goal, till business rules that guide the business processes.
This diagram below is elaborated using the Enterprise Architect (EA) tool from SparxSystems.
Figure 3 : An hierarchical view of the business goal, strategy and tactics until goal-driven business processes that are guided by business rules and rule based requirements that compose these processes
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