自動(dòng)化系統(tǒng)評(píng)估ppt課件-文庫吧資料
2025-05-09 03:50本頁面
【正文】 nce and cognitive psychology has been performed to gain a better understanding of how users interact with systems, and how the results of that interaction can be evaluated. One practical goal of this type of research is to collect and analyze information that can be fed back into better system design. ? 使用者參與的評(píng)估：資訊科學(xué)與認(rèn)知心理學(xué)人機(jī)互動(dòng)的研究於近廿年來有長(zhǎng)足的進(jìn)步，甚至對(duì)於互動(dòng)結(jié)果亦可進(jìn)一步進(jìn)行評(píng)估。 ? Capacity planning is another important element in overall evaluation. By tracking the size of the database, and estimating its growth rate, projections can be made about when to increase capacity, and whether this increase in size will degrade or otherwise affect response time and other performance factors. Precise capacity planning is difficult because it involves projection and prediction based on numerous plex performance factors. ? 系統(tǒng)容量規(guī)劃亦是整體性評(píng)估的重要項(xiàng)目，資料庫容量是否足夠符合未來成長(zhǎng)需求。 ? At times, public or staff users identify problems or make suggestions for system changes designed to refine its operation or its interaction with users. The feedback for making these changes can e from word of mouth or from the periodic review of performance logs generated by the system. ? 職員或使用者所找出的問題或建議可於系統(tǒng)功能或設(shè)計(jì)上予以進(jìn)行修正或加強(qiáng)，而這些回饋意見的收集可以透過口頭、文字或系統(tǒng)記錄分析獲得。 ? Acceptance testing or benchmarking is a process often used by libraries to verify that the new or upgraded system meets the contract requirements. Often the conditions of acceptance in a contract indicate clearly what type of performance is expected, and the acceptable level of performance, to determine whether a system works in the manner agreed upon in the contract. ? 接受度測(cè)試及標(biāo)竿法經(jīng)常用於檢驗(yàn)新系統(tǒng)或系統(tǒng)更新是否符合合約的需求。 。 。 ； 。 。在他的研究中 checklist總共收集了 120因素，並予以歸類聚集成十大類別之中。 assistance。 control。 pints。 。 ? Cherry et al.(1994) employ4ed a checklist to survey features in the OPACs of twelve Canadian academic libraries. Data on each system were collected twice, by two different researchers, and the two datasets were checked a third time against the systems to resolve any disagreements. One hundred seventy features were included in the checklist, grouped into ten functional categories: characteristics。對(duì)多個(gè)系統(tǒng)的比較上，它協(xié)助定義不同系統(tǒng)間的特色差異，並找出強(qiáng)勢(shì)與弱點(diǎn)。系統(tǒng)評(píng)分可以由垂直加總導(dǎo)出，子項(xiàng)加總分?jǐn)?shù)為該系統(tǒng)某特定區(qū)項(xiàng)的系統(tǒng)強(qiáng)度，整體加總可以顯示出整體的效益。 ? One useful tool that can be used in the selection of systems is a checklist to determine the features present in a particular system or, more particularly, to pare the characteristics of two or more systems. ? 這類的評(píng)估通常會(huì)使用 Checklist 工具，以呈現(xiàn)特定系統(tǒng)的特性或比較兩個(gè)系統(tǒng)之間的特色。 ? UserFree Evaluation: This category of evaluation focuses on system features rather than on how these are exploited by a particular group of users. ? 無使用者參與評(píng)估：這類型的評(píng)估著重於系統(tǒng)特性而不是特定使用者的試用經(jīng)驗(yàn)。 Criteria Value 1 2 3 Ease of use by patrons (顧客感覺好用 ) Availability of application modules and subsystems (應(yīng)用模組或子系統(tǒng)之可用性 —符合使用需求 ) Completeness of modules and subsystems (模組或子系統(tǒng)完整性 ) Cost of system (系統(tǒng)成本 ) Cost of hardware (硬體成本 ) Need for local programming stall (MIS人員的需求 ) Service reputation of vendor (軟體廠商的保證 ) Easy of use by staff (職員或幕僚感覺好用 ) Comparable installed sited (軟體的客戶參考 ) Previous experience with vendor(軟體廠商的導(dǎo)入經(jīng)驗(yàn) ) Training and documentation provided (教育訓(xùn)練及文件提供 ) Bias against vendor (對(duì)軟體廠商的徧見 ) Key: 1.= Seriously considered (審慎考慮 ) 2.= Considered to some extent (僅考慮某些範(fàn)圍 ) 3.= Not considered at all (從不考慮 ) ? There are obviously many possible ways in which approaches to the evaluation of automated systems can be categorized. For the purposes of this chapter, two major approaches are identified: ? Evaluation without user involvement or with less than full user involvement.(user free) ? Evaluation with full user involvement. (user involved) ? 評(píng)估自動(dòng)化系統(tǒng)有許多方法，但可歸納成兩類： 用者參與的評(píng)估方法； 。 (2)economic
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