1 |
A Formalized Approach to Multi-View Components for Embedded Systems : Applied to Tool Integration, Run-Time Adaptivity and Architecture ExplorationPersson, Magnus January 2013 (has links)
Development of embedded systems poses an increasing challenge fordevelopers largely due to increasing complexity. Several factors contribute tothe complexity challenge: • the number of extra-functional properties applying to embedded systems,such as resource usage, timing effects, safety. • the functionality of embedded systems, to a larger extent than for othersoftware, involves engineers from multiple different disciplines, such asmechanical, control, software, safety, systems and electrical engineers.Themulti-disciplinarity causes the development environments to consistof separate data, models and tools. Several engineering paradigms to handle this complexity increase havebeen suggested, including methodologies focused on architecture, models andcomponents. In systems engineering, a long-standing approach has been todescribe the system in several views, each according to a certain viewpoint.By doing so, a divide-and-conquer strategy is applied to system concerns.Unfortunately, it is hard to always find completely independent concerns:there is always some semantic overlap between the different views. Modelbaseddesign (MBD) deals with building sound abstractions that can representa system under design and be used for analysis. Component-based design(CBD) focuses on how to build reusable component models with well-definedcomposition models. In this thesis, a concept of formalized multi-viewed component models (MVCM) is proposed, which integrates the three above mentioned paradigms.Principles and guidelines for MV CMs are developed. One of the main challengesfor the proposition is to provide MV CMs that produce composabilityboth along component boundaries and viewpoint boundaries. To accomplishthis, the relations between viewpoints need to be explicitly taken into account.Further, the semantic relations between these viewpoints need to be explicitlymodeled in order to efficiently ensure that the views are kept consistent. Asa main contribution, this thesis presents the formalization of the conceptsneeded to build such component models. A proper formalization of multiviewedconcerns provides several opportunities. Given suitable tool support, itwill be feasible to automate architecture analysis and architecture exploration. The thesis includes a number of case studies that provide insight andfeedback to the problem formulation and validating the results. The casestudies include a resource-aware reconfigurable middleware, a design of anarchitecture exploration methodology, and a windshield wiper system. / <p>QC 20130527</p>
|
2 |
如何在策略資訊系統規劃過程中整合CEO與CIO的觀點 / How to integrate the views of CEO and CIO in the process of strategic insormation systems planning洪維林 Unknown Date (has links)
由於資訊科技具有策略上的價值,結合資訊系統與組織策略的策略資訊系統也日漸受到組織高層重視。策略資訊系統應用的目的,不只是提供市場更多元的產品與迅速的服務,甚至可以重新定義產業競爭的方式使得組織從中獲利。而良好的策略資訊系統規劃,才可以真正讓組織從資訊科技的應用中獲得競爭優勢。
本研究主要探討如何在策略資訊系統規劃過程中整合CEO與CIO的觀點。本研究由文獻中整理策略資訊系統規劃所應該具備的要素並評量12個SISP方法對於要素的支援情形。然後探討SISP過程中相關的決策議題,包括權力、政治行為、衝突與協商,以及漸近式的決策形成過程。以文獻為基礎所建構的觀點整合資訊規劃方法中,將可以發現CEO與CIO兩人的觀點其實是具有相當多的分歧存在。本研究並利用動態網頁的技術,以IC製造業公司的資料為例,建構一套可行的雛型系統以輔助SISP方法之應用。 / Information technology is valuable in strategic way. So, the top management of organizations has paid more attentions to Strategic Information Systems (SIS) that link information strategy with organizational strategy. The purpose of the use of SIS is not only to offer new services, but also to redefine the way of competition. A good Strategic Information Systems Plarniing (SISP) can help the organizations take competitive advantages by the information technology.
The purpose of this research is to study the issues of the different views of Chief Executive Officer (CEO) and Chief Information Officer (CIO) in the process of SISP. After reviewing the literature, we have established the key characteristics of SISP and evaluated 12 SISP methods accordingly. Then, we study the human issues of the SISP process including power, political behavior, conflict and negotiation, and incrernantalism. On the base of these studies, a View Integrated SISP method has been proposed. This method emphasis on the different views of CEO and CIO. A prototype system (VICAS) in WWW has been implemented. Some testing data from an integrated circuit manufactory company has been tried.
|
Page generated in 0.5605 seconds