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To facilitate system architecture development using DoDAF, we propose an architecture development methodology based on DoDAF 2.0 in this paper. First, based on experiences in practice, gaps between Operational Viewpoint (OV), Capability Viewpoint (CV) and System/Service Viewpoint (SV/SvcV) are analyzed. Second, to bridge the gaps, two architecture viewpoints, i.e. Information activity Viewpoint (IaV)...
This paper proposes an approach to construct effectiveness evaluation model semi-automatically based on system architecture such as Department of Defense Architecture Framework (DoDAF). The effectiveness evaluation index system is firstly generated based on architecture models including Capability Dependencies (CV-4), Capability to Operational Activities Mapping (CV-6), Operational Activity to Systems...
A high-precision and temperature insensitive longrange distance measurement (DM) based on frequency detection is proposed and experimentally demonstrated. Two optoelectronic oscillators (OEOs) are grouped into a cross-referencing structure by Dense Wavelength Division Multiplexing (DWDM), which can greatly increase the measurement accuracy by reducing the influence of the environment such as temperature...
Optical techniques have the potential to overcome limitations of electronic digital-to-analog conversion (DAC). A serial optical DAC (ODAC) utilizing the dispersion property of fiber-optic is proposed and demonstrated. The structure of the proposed DAC is designed based on the concerning of dispersive summing and electro-optic bit selection, which is easier to be realized compared with the conventional...
Aiming at performance enhancements and robust reliability design of mono-layer transition-metal dichalcogenide (TMD) tunneling FET(TFET), W vacancy(Vw) defect is systematically studied in this work. Impacts of Vw defect's positions are characterized in WSe2 TTETs by using rigorous ab initio simulations. It is found that Vw defect that locates in the tunnel junction will increase Ion, while it has...
In this paper, reinforcement learning (RL) based power control algorithm in underlay D2D communication is studied. The approach we use regards D2D communication as a multi-agents system, and power control is achieved by maximizing system capacity while maintaining the requirement of quality of service(QoS) from cellular users. We propose two RL based power control methods for D2D users, i.e., team-Q...
In ultra-dense heterogeneous cellular networks, with the density of low power base stations (BSs) increasing, the inter-cell interference (ICI) can be extremely strong when all BSs reuse the same time-frequency resources. In this paper, after proving that allocating orthogonal (frequency) sub-bands to adjacent cells can perform better on throughput than reusing the whole bandwidth, we propose a multi-agent...
In the model driven system engineering, architecture plays an important role in the quality of the developed complex system. In some extend, the quality of the architecture determines the developed system's quality. The system's architecture is usually described from different views, including static views and dynamic views, like DoDAF (Department of Defense Architecture). Then how to ensure the consistency...
Test requirement models play an important role in model-driven testing for net-centric, SOA-based systems. In literature, there still lack a test requirement modeling method that can describe multiple types of test requirement of SOA-based systems. Such lack would increase test burden and bring negative effects on test sufficiency. In this paper, we propose a task scenario oriented test requirements...
Order allocation among member enterprises of a horizontal conglomerate is the key problem when the conglomerate headquarters is responsible for obtaining all market orders. Considering stochastic characteristic of component defects in assemble-to-order, a mixed integer linear programming model for order allocation with multi-order, multi-product, multi-period, and multi-manufacture was proposed. The...
Model transformations are one of three core parts in OMG's Model Driven Architecture. Nowadays, the model transformation rules are mainly written for each particular problem. This is usually a time consuming and a very difficult work. This paper provides a list of reusable rule patterns for QVT Operational Mappings language. It can help users to write transformation rules quickly and correctly in...
The injection mass of common rail system is determined by rail pressure and injector energizing time. Under different rail pressure, single injection experiments have been performed; under the same rail pressure two injections (preinjection and main injection) tests with various intervals have been carried out. According to the analysis of the results, find that at the start-up and stop stages the...
Software changes are inevitable during software evolution. And software change propagation intensely increases the difficulty of software maintenance. In this paper, we regard various change requirements as the combination of a series of “atomic change requirement”. Software modifications, which are used to satisfy the “atomic change requirement”, are considered as modifications of a random selected...
There are three types of web service QoS criterion weight: subjective weight decided by user's preference of QoS criterion, objective weight affected by QoS criterion value and synthetic weight synthesized with the two. Considering the uncertainty of conversion from qualitative value, which is used to describe user's preference, to quantitative value, the uncertainty of subjective weight is described...
Both criterion values and user's preference of criterion should be taken into account when selecting web services with same functionalities. Usually, user describes his/her preference of criterion using qualitative concept. But the quantitative value corresponding to qualitative concept is uncertain. Thus, the subjective weight acquired based on user's preference is uncertain. This paper provides...
The Shipborne combat system (SCS) includes many application systems. The integration of application systems is necessary because they are distributed and need to complete combat tasks together. For such integration, an integration model needs to be developed. Firstly, the integration framework of application systems of SCS is introduced, which involves three layers: data integration, function integration...
Software changes are inevitable during software evolution. And knowing little about changes is the most significant reason which increased the cost and risk of the changes. The approach of change complexity measurement based on software repositories is proposed in this paper. The atomic change types are defined. The change complexity model and related metric indictors are presented. And the automatic...
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