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ial, technical, economic, management, analysis and development of new systems e feasible, not feasible, need to modify , additional investment, the suspension of development, step by step and other programs and conclusions, and finally plete the feasibility analysis. Feasibility analysis of the general can be defined as: a feasibility analysis early in the construction of a project study and appraisal of the proposed project to conduct a prehensive and integrated technical and economic capacity of the investigation to determine whether it is feasible. (1) the feasibility study stage of the work include the following: Objective analysis of whether the new system status and business development needs. ② social feasibility analysis: Social feasibility analysis mainly refers to the management information system development is consistent with national law, bad policy, whether we can achieve a good social system and docking. ③ technical feasibility analysis: Technical feasibility analysis is based on the new system aims to measure whether they have the required technology, including the number and level of system developers, hardware, software and other application technologies. ④ economic feasibility analysis Economic feasibility analysis is mainly on the development of capital invested in new systems and systems put into use to pare the economic benefits to confirm whether the new system will bring some economic benefits panies. 共 13 頁 第 6 頁 ⑤ management feasibility analysis: Management feasibility analysis is to analyze existing enterprise management system and whether the business leaders of modern management awareness and management. Technical feasibility analysis Technical feasibility analysis includes four aspects: the current technology can support the new systems developed。 ⑤ character processing system selection。然而,語言的彈性和工具的便利性是密不可分的,只有便利的工具,卻沒有彈性的語言作支持,許多特殊化的處理動作必需要耗費數(shù)倍的工夫來處理,使得原來所標榜的效率提高的優(yōu)點失去了作用;相反, 如果只強調(diào)程續(xù)語言的彈性,卻沒有便利的工具作配合,會使一些即使非常簡單的界面處理動作,也會嚴重地浪費程序設(shè)計師的寶貴時間。 Visual Basic 提供了可視化設(shè)計工具,把 Windows 界面設(shè)計的復雜性“封裝”起來,開發(fā)人員不必為界面設(shè)計而編寫大量程序代碼。 Visual Basic 語句簡單易懂,其編輯器支持彩色代碼,可自動進行語法錯誤檢查,同時具有功能強大且使用靈活的調(diào)試器和編譯器。 訪問數(shù)據(jù)庫 Visual Basic 具有強大的數(shù)據(jù)庫管理功能,利用數(shù)據(jù)控件和數(shù)據(jù)庫管理窗口,可以直接建立或處理 Microsoft Access 格式的數(shù)據(jù)庫,并提供了強大的數(shù)據(jù)存儲和檢索功能。 OLE 技術(shù)是 Microsoft公司對象技術(shù)的戰(zhàn)略,它把多個應(yīng)用程序合為一體,將每個應(yīng)用程序看作是一個對象進行鏈接和嵌入,是一種應(yīng)用程序一體化的技術(shù)。它們只是根據(jù)自己業(yè)務(wù)工作的需要提出了要求,系統(tǒng)開發(fā)人員要對此進行詳細的調(diào)查和分析,確認用戶的要求可以通過現(xiàn)有的計算機技術(shù)實現(xiàn),保證開發(fā)的管理信息系統(tǒng)的功能與用戶提出的要求相吻合。 ④經(jīng)濟可行性分析 經(jīng)濟可行性分析主要是對開發(fā)新系統(tǒng)所投入的資金與系統(tǒng)投入使用后所帶來的經(jīng)濟效益進行比較,確認新系統(tǒng)是否會給企業(yè)帶來一定的經(jīng)濟效益。 本系統(tǒng)在開發(fā)前,與中心的領(lǐng)導和有關(guān)的操作人員密切溝通,認真聽取他們的意見,并吸收他們的積極觀點,使本系統(tǒng)的開發(fā)在相當大的程度上具有一定的先進性和合理性。這里討論的技術(shù)必須是已經(jīng)普遍使用的,而不是待研究的或正在研究的。 可行性分析一般可定義為:可行性分析是在建設(shè)的前期對工程項目的一種考察和鑒定,對擬議中的項目進行全面與綜合的技術(shù)、經(jīng)濟能力的調(diào)查,判斷它是否可行。此外,通過動態(tài)鏈接庫,還可以調(diào)用 Windows 應(yīng)用程序接口 (API)函數(shù),實現(xiàn) SDK 所具有的功能。 動態(tài)數(shù)據(jù)交換 (DDE) 利用動態(tài)數(shù)據(jù)交換 (Dynamic Data Exchange)技術(shù),可以把一種應(yīng)用程序中的數(shù)據(jù)動態(tài)地鏈接到另一種應(yīng)用程序中,使兩種完全不同的應(yīng)用程序建立起一條動態(tài)數(shù)據(jù)鏈路。一個對象可能會產(chǎn)生多個事件,每個事件都可以通過一段程序來響應(yīng)。在一般的面向?qū)ο蟪绦蛟O(shè)計語言中,對象由程序代碼和數(shù)據(jù)組成,是抽象的概念;而 Visual Basic 則是應(yīng)用面向?qū)ο蟮某绦蛟O(shè)計方法 (OOP),把程序和數(shù)據(jù)封裝起來作為一個對象,并為每個對象賦予應(yīng)有的屬性,使對象成為實在的東西。在 Visual Basic 環(huán)境下,利用事件驅(qū)動的編程機制、 共 13 頁 第 9 頁 新穎易用的可視化設(shè)計工具,使用 Windows 內(nèi)部的應(yīng)用程序接口 (API)函數(shù),以及動態(tài)鏈接庫 (DLL)、動態(tài)數(shù)據(jù)交換 (DDE)、對象的鏈接與嵌入 (OLE)、開放式數(shù)據(jù)訪問 (ODBC)等技術(shù),可以高效、快速地開發(fā)出 Windows 環(huán)境下功能強 大、圖形界面豐富的應(yīng)用軟件系統(tǒng)。這些優(yōu)點能夠極大地提高人事管理的效率 ,也是企業(yè)的科學化、正規(guī)化管理 ,與世界接軌的重要條件。s performance / price ratio. (3) software resources Feasibility of software resources are the main consider the following to meet user requirements: ① Select the operating system。s strategic corporate object technology, which the multiple applications into one, as each application for an object linking and embedding, is an application integration technology. Using OLE technology, you can easily build posite documents (pound document), this document from a number of different application objects, each object in the document and linked to the original application, and perform with the original application the same operation. Dynamic link library (DLL) Visual Basic is an advanced programming language, do not have lowlevel language functions, the operation of the access to the machine hardware is not easy to implement. But it could be dynamic link library technology will C / C + + or assembly language programs to Visual Basic applications, you can call the same function as the internal call functions written in other lan