Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
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và các thuộc tính vật lý với các thông tin yêu cầu, thiết kế và hoạt động trong suốt cuộc đời của nó "(Nguồn: ANSI-EIA-649-1998, trang 4) • Effectivity" chỉ xác định phạm vi sản phẩm (ví dụ, nối tiếp, rất nhiều con số, mô hình, ngày, tháng, năm ) hoặc sự kiện mà tại đó một thay đổi cụ thể | Simpo PDF Merge and Split UnjegiA er edioyefãO ohttP liWWW-SiimeOPdftQQm Simulation 1 Architecture Trade Study Figure 51.1 Simulation-Based Architecture Selection Architectural Selection Recommendations 1 Architecture 3 2 Architecture 1 3 Architecture 2 Simulation n We exercise the simulations over a variety of OPERATING ENVIRONMENT scenarios and conditions. Results are analyzed and compiled and documented in an Architecture Trade Study. The Architecture Trade Study rank orders the results as part of its recommendations. Based on a review of the Architecture Trade Study SEs select an architecture. Once the architecture is selected the simulation serves as the framework for evaluation and refining each simulated architectural entity at lower levels of abstraction. Application 2 Simulation-Based Architectural Performance Allocations Modeling and simulation are also employed to perform simulation-based performance allocations as illustrated in Figure 51.2. Consider the following example EXAMPLE 51.9 Suppose that Requirement A describes and bounds Capability A. Our initial analysis derives three subordinate capabilities A1 through A3 that are specified and bounded by Requirements A1 through A3 The challenge is How do SEs allocate Capability A s performance to Capabilities A1 through A3 Let s assume that basic analysis provides us with an initial set of performance allocations that is in the ballpark. However the interactions among entities are complex and require modeling and simulation to support performance allocation decision making. We construct a model of the Capability A s architecture to investigate the performance relationships and interactions of Entities A1 through A3. Next we construct the Capability A simulation consisting of models A1 through A3 representing subordinate Capabilities A1 through A3. Each supporting capability A1 through A3 is modeled using the System Entity Capability Construct shown in Figure 22.1. The simulation is exercised for a variety
