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cisa 发表于 2006-8-9 12:14

信息系统审计目标

<div style="CLEAR: both; PADDING-RIGHT: 6px; PADDING-LEFT: 6px; FONT-SIZE: 14px; PADDING-BOTTOM: 6px; LINE-HEIGHT: 150%; PADDING-TOP: 6px;"><font face="Times New Roman"></font></div><div style="CLEAR: both; PADDING-RIGHT: 6px; PADDING-LEFT: 6px; FONT-SIZE: 14px; PADDING-BOTTOM: 6px; LINE-HEIGHT: 150%; PADDING-TOP: 6px;"><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 13.0pt;"><font face="Times New Roman">1. </font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">资产保护问题</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">组织的资产包括硬件、软件、设备、人、数据文件、系统文档等</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">他们必须受内部控制系统的保护。</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">由于重要的系统文档、软件、数据文件等资产经常集中在信息系统中存放</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">如磁盘</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">。</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">因此</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">信息系统的运行如果经常出现故障</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">如网络掉线、服务器岩机、病毒肆虐、客户资料被盗、电脑售票系统突然发生死机等故障</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">则会对组织的资产保护造成巨大威胁。所以</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">资产保护成为许多组织要达到的一个重要目标</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">也是</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt;"><font face="Times New Roman">IS</font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">审计所追求的目标之一。</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt;"><font face="Times New Roman">2. </font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">数据完整性问题</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 10.0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">数据完整性是指数据能够满足规定的条件</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">防止错误信息的输入和输出</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">以及非授权状态下修改信息所造成的无效操作和错误后果</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">。</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">由于网上银行、网络证券交易等复杂业务的出现对信息是否真实</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">、</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">完整等提出了鉴证要求。如果数据完整性得不到维护</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">企业会失去竞争优势。然而</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">维护数据的完整性需要成本</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">因此</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">要确保所获收益大于所需的控制步骤的成本。审计体系有助于控制信息处理系统的风险、加强事务处理的完整性</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">实现组织目标。</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><p></p></span></p></div>

cisa 发表于 2006-8-9 12:14

<p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 13.0pt;"><font face="Times New Roman">3. </font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">系统有效性问题</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt;"><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">系统的有效性表明系统能否获得预期的目标。有效性审计常在系统运行一段时间之后</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">管理者申请实施后审计以决定系统是否获得所声明的目标</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 13.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">这个评估为系统是否继续运行或者进行某种程度的修改提供</span><span lang="ZH-TW" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><font face="Times New Roman">
                        </font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">决策。有效性审计也可以在系统设计阶段进行。如果系统复杂</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">实施成本高</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">而且用户经常很难识别需求或达成一致性建议</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">在设计者和用户之间也有很大的沟通问题</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">管理者则希望通过执行独立审计的方式评估是否满足用户的需求</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">以便及时做出更为科学的决策。</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><font face="Times New Roman">IS </font></span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">审计从独立、客观、公正的第三方的角度</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">以目标驱动</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">对信息的质量进行审查</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">对产生信息的系统、信息的产生过程及相应的内部控制进行评价、审计</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">审查交易数据和评估其完整性及可靠性</span><span style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman';">,</span><span lang="ZH-TW" style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW;">从而为管理者了解用户的特征和决策环境提供了依据。</span><span lang="EN-US" style="mso-font-kerning: 0pt; mso-bidi-font-size: 9.0pt;"><p></p></span></p>

cisa 发表于 2006-8-9 12:16

<span lang="EN-US" style="mso-font-kerning: 0pt;"><font face="Times New Roman">&nbsp;<p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="ZH-TW" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;"><span lang="EN-US" style="mso-font-kerning: 0pt;"><font face="Times New Roman"><font size="3">&nbsp;4. 系统效率问题</font></font></span></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="ZH-TW" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;"><span lang="EN-US" style="mso-font-kerning: 0pt;"><font face="Times New Roman"><font size="3">系统效率是指系统达到预定目标所消耗的资源,一个效率高的信息系统能够以尽量少的资源达到需要</font></font></span></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="ZH-TW" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;"><span lang="EN-US" style="mso-font-kerning: 0pt;"><font face="Times New Roman"><font size="3">的目标。信息系统消耗不同资源:机器时间、设备、系统软件、劳动力等,这些资源是稀缺资源,不同的系统经常为争夺这些资源而竞争。由于组织的利益环境复杂,信息系统的决策难免会牵涉部门利益之间的冲突,所以系统效率的评价很难独立于其它系统,所以经常没有明确答案。然而,系统效率与用户满意度息息相关。如果计算机的容量不能满足需求,或应用系统性能下降时,用户会非常恼怒,此时管理者需要了解原因,如,个人应用系统效率低或者是由于现有计算机的资源配置产生了瓶颈,从而决定是否需要购买额外资源,是否进行效率改善,并确定控制硬件和软件设计成本问题。由于审计师的独立性,管理者通常需要他们帮助解决评估的效率问题。通过介入独立的IS审计,可以分析信息系统给组织所带来的各种影响,例如信息系统产生效益的同时,可能给企业带来什么新的问题;信息系统对组织机构和工作流程的影响等,可以在安全性、稳定性和效率、效用之间进行权衡,为企业信息系统的改造提供建议。</font></font></span></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 15.6pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt; mso-outline-level: 1;"><span lang="ZH-TW" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 9.0pt; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;"><span lang="EN-US" style="mso-font-kerning: 0pt;"><font face="Times New Roman"><font size="3"></font></font></span></span></p></font></span>

viltowz 发表于 2007-2-3 14:15

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