UPMC, Enterprise Imaging Informatics, Pittsburg, PA 15213, USA.
J Digit Imaging. 2012 Dec;25(6):744-50. doi: 10.1007/s10278-012-9504-4.
As hospitals move towards providing in-house 24 × 7 services, there is an increasing need for information systems to be available around the clock. This study investigates one organization's need for a workflow continuity solution that provides around the clock availability for information systems that do not provide highly available services. The organization investigated is a large multifacility healthcare organization that consists of 20 hospitals and more than 30 imaging centers. A case analysis approach was used to investigate the organization's efforts. The results show an overall reduction in downtimes where radiologists could not continue their normal workflow on the integrated Picture Archiving and Communications System (PACS) solution by 94 % from 2008 to 2011. The impact of unplanned downtimes was reduced by 72 % while the impact of planned downtimes was reduced by 99.66 % over the same period. Additionally more than 98 h of radiologist impact due to a PACS upgrade in 2008 was entirely eliminated in 2011 utilizing the system created by the workflow continuity approach. Workflow continuity differs from high availability and business continuity in its design process and available services. Workflow continuity only ensures that critical workflows are available when the production system is unavailable due to scheduled or unscheduled downtimes. Workflow continuity works in conjunction with business continuity and highly available system designs. The results of this investigation revealed that this approach can add significant value to organizations because impact on users is minimized if not eliminated entirely.
随着医院向提供 24×7 内部服务的方向发展,对 24 小时可用的信息系统的需求也在不断增加。本研究调查了一个组织对工作流程连续性解决方案的需求,该解决方案提供了非高可用性服务的信息系统的 24 小时可用性。所调查的组织是一个大型多设施医疗保健组织,由 20 家医院和 30 多个成像中心组成。采用案例分析方法调查了该组织的努力。结果表明,在 2008 年至 2011 年期间,放射科医生无法继续在集成的图像存档和通信系统 (PACS) 解决方案上进行正常工作流程的停机时间总体减少了 94%。未计划停机时间的影响减少了 72%,而计划停机时间的影响减少了 99.66%。此外,在 2008 年由于 PACS 升级而导致的 98 多个小时的放射科医生影响,在 2011 年完全利用工作流程连续性方法创建的系统得以消除。工作流程连续性在其设计过程和可用服务方面与高可用性和业务连续性不同。工作流程连续性仅确保在生产系统因计划内或计划外停机而不可用时,关键工作流程可用。工作流程连续性与业务连续性和高可用性系统设计协同工作。这项调查的结果表明,这种方法可以为组织带来巨大的价值,因为如果不是完全消除的话,对用户的影响也会最小化。