ChangeLedge: Change design and planning in networked systems based on reuse of knowledge and automation

Cordeiro, Weverton; Machado, Guilherme Sperb; Andreis, Fabricio Girardi; Santos, Alan Diego dos; Both, Cristiano Bonato; Gaspary, Luciano Paschoal; Granville, Lisandro Zambenedetti; Bartolini, Claudio; Trastour, David

doi:10.1016/j.comnet.2009.07.001

Cited by 16 publications

(12 citation statements)

References 17 publications

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“…Thus, the generated plans are not guaranteed to be executable from a logical point of view. Similar guarantees are provided by Cordeiro et al [13], [14] who propose an approach focusing on the reuse of knowledge in IT change design. The authors propose an algorithm to refine abstract IT changes.…”

Section: Related Worksupporting

confidence: 54%

“…However, despite the negative influence of unpredictable changes on the feasibility of IT change plans -to the best of our knowledge -nobody has yet proposed an approach to adapt plans to changed management domains. Works on IT change plan generation can be roughly divided into two classes: The first class [12], [13], [14] comprises approaches that do not apply logically sound reasoning to IT changes. CHAMPS [12], the seminal work in this class, formalizes planning and scheduling as an optimization problem and achieves a high degree of parallelism.…”

Section: Related Workmentioning

confidence: 99%

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Facing the unpredictable: Automated adaption of IT change plans for unpredictable management domains

Hagen

Kemper

2010

2010 International Conference on Network and Service Management

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Abstract-Change Management, a core process of the Information Technology Infrastructure Library (ITIL), is concerned with the management of changes to IT infrastructure and services to satisfy business goals and to minimize costly disruptions on the business. As part of this process, IT changes are planned for, authorized, tested, scheduled, and executed. Unpredictable incidents, e.g., resource failures or unexpected changes in between planning and execution can render plans infeasible. The execution of unsound plans ultimately leads to service disruptions which threaten the continuity of the business. In order to tackle this problem, we propose a logically sound approach to adapt infeasible IT change plans to a changed management domain in order to render them feasible again. We apply our approach to a case study comprising Virtual Area Network (VLAN) configuration and the deployment of a 2-tier service. For the case study we show that the proposed solution can render IT change plans feasible within minimal time differences regarding unpredictable resource conflicts in 95% of all cases if resource utilization remains below 85%.

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Section: Related Worksupporting

confidence: 54%

Section: Related Workmentioning

confidence: 99%

Facing the unpredictable: Automated adaption of IT change plans for unpredictable management domains

Hagen

Kemper

2010

2010 International Conference on Network and Service Management

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“…However, despite the negative influence of conflicting IT changes regarding the feasibility of IT change plans -to the best of our knowledge -nobody has yet proposed an approach to detect them. Early work on IT change planning [3], [14], [15] comprises approaches that do not apply logically sound reasoning to IT changes. The plans generated by these approaches are not guaranteed to be executable from a logical point of view.…”

Section: Related Workmentioning

confidence: 99%

“…While CHAMPS can reason about dependencies to achieve actions, it does not apply logically reasoning and cannot detect conflicting IT changes among different plans. Cordeiro et al [14], [15] propose an approach focusing on the reuse of knowledge in IT change design. The authors propose an algorithm to refine abstract IT changes without giving logical guarantees about the feasibility of the generated plans.…”

Section: Related Workmentioning

confidence: 99%

Towards solid IT Change Management: Automated detection of conflicting IT change plans

Hagen

Kemper

2011

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops

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Abstract-Change Management, a core process of the Information Technology Infrastructure Library (ITIL), is concerned with the management of changes to networks and services to satisfy business goals and to minimize costly disruptions on the business. As part of Change Management, IT changes are planned for and scheduled for execution. With several uncoordinated IT operators and different (semi-)automated tools participating in the generation of IT change plans conflicts among them are likely to occur. Furthermore, state of the art IT change planners fail to prevent conflicts among plans. Conflicting IT changes, which render each other infeasible, ultimately lead to failed IT change plans and threaten the continuity of a business due to unsatisfied business goals. To tackle this problem we propose an algorithm for the automated detection of conflicting IT change plans. The algorithm is applied to several IT changes from the network and service management domain. Using simulation we identify and discuss characteristics of IT changes and plans that make deciding conflict freeness among plans more difficult. We find that our algorithm is able to decide the absence of conflicts among synthetically generated IT change plans (1-200 CRs per plan, up to 2000 CRs in total) in the context of large CMDBs (50,000 CIs) and modestly skewed IT changes. The advantage of our solution lies within the tight integration of object-oriented models, frequently used to describe CMDBs in research and commercial systems. Furthermore, existing IT change planners and schedulers remain unchanged while our solution prevents inter-plan conflicts.

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“…Despite the recommendations proposed by ITIL, it does not present a practical method for risk assessment in change management. Recently, some authors have proposed solutions for the automation of change management in its several phases [3] [4] [5]. Nevertheless, no previous work proposed an automated approach for the risk assessment in the planning phase of change management.…”

Section: Introductionmentioning

confidence: 99%

Improving IT Change Management Processes with Automated Risk Assessment

Wickboldt

Bianchin

Lunardi

et al. 2009

Integrated Management of Systems, Services, Processes and People in IT

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Abstract. The rational management of IT infrastructures is a goal of modern organizations that aim to deliver high quality services to their customers in an affordable way. Since changes are imminent in such a dynamic environment, failures during this process may directly affect business continuity. Hence, risk assessment is a key process in IT change management. Despite its importance, risks are usually assessed by humans based on empirical knowledge, leading to inaccurate basis for decision making. In this paper, we present a solution for automating the risk assessment process, which combines historical data from previous changes and analyzes impact of changes over affected elements. A prototypical system was developed to evaluate the solution on an emulated IT infrastructure. The results achieved show how the automated solution is capable of raising the quality of changes, therefore reducing service disruption caused by changes.

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ChangeLedge: Change design and planning in networked systems based on reuse of knowledge and automation

Cited by 16 publications

References 17 publications

Facing the unpredictable: Automated adaption of IT change plans for unpredictable management domains

Facing the unpredictable: Automated adaption of IT change plans for unpredictable management domains

Towards solid IT Change Management: Automated detection of conflicting IT change plans

Improving IT Change Management Processes with Automated Risk Assessment

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