Tato práce si klade za cíl seznámit studenty i profesionály z oblasti IT o čem disciplína Service Management (SM) a proces Service Level Management (SLM) je v prostředí korporátní společnosti. Práce obsahuje příklady různých SLM nástrojů a metod, které jsou skutečně používány (například v manažerském nástroji typu Balanced Scorecard). Zvláštní důraz je kladen na překážky, jež mohou nastat a jak je překonat. Tak jako každá zkušenost toto je pouze jeden z přístupů k SLM, ale pokud přispěje k lepšímu osvícení čtenáře, pak splnila svůj cíl. K dosažení těchto záměrů využívám svých dvou a půl letých zkušeností z práce na projektech ve společnosti DHL a ostatních zdrojů popisujících teoretickou rovinu. První část mé diplomové práce poskytuje teoretickou znalost problematiky, druhá část pak převádí tyto znalosti do podnikové praxe.

<p>We study techniques to enforce and provision differentiated service levels in <i>Computational Grid</i> systems. The Grid offers simplified provisioning of peak-capacity for applications with computational requirements beyond local machines and clusters, by sharing resources across organizational boundaries. Current systems have focussed on access control, i.e., managing who is allowed to run applications on remote sites. Very little work has been done on providing differentiated service levels for those applications that are admitted. This leads to a number of problems when scheduling jobs in a fair and efficient way. For example, users with a large number of long-running jobs could starve out others, both intentionally and non-intentionally. We investigate the requirements of High Performance Computing (HPC) applications that run in academic Grid systems, and propose two models of service-level management. Our first model is based on global real-time quota enforcement, where projects are granted resource quota, such as CPU hours, across the Grid by a centralized allocation authority. We implement the SweGrid Accounting System to enforce quota allocated by the Swedish National Allocations Committee in the SweGrid production Grid, which connects six Swedish HPC centers. A flexible authorization policy framework allows provisioning and enforcement of two different service levels across the SweGrid clusters; high-priority and low-priority jobs. As a solution to more fine-grained control over service levels we propose and implement a <i>Grid</i> <i>Market </i>system, using a market-based resource allocator called Tycoon. The conclusion of our research is that although the Grid accounting solution offers better service level enforcement support than state-of-the-art production Grid systems, it turned out to be complex to set the resource price and other policies manually, while ensuring fairness and efficiency of the system. Our Grid Market on the other hand sets the price according to the dynamic demand, and it is further incentive compatible, in that the overall system state remains healthy even in the presence of strategic users.</p>

Management of Virtual Organizations faces new challenges that traditional approaches cannot address. This research proposes a performance measurement framework for service oriented virtual organizations including a structural and a procedural component. The structural framework aligns the activities of partners in a virtual organization at three different layers. The first layer is designed for partners’ strategic alignment through coordination of the value creation network. In the second layer, performance dimensions of partners’ collaboration are defined and mapped to the service choreography model. The third layer focuses on assessing effectiveness and efficiency of partners’ domain specific services, which is designed based on ITIL V3 service level management guidelines. In order to consolidate the structural framework, these three layers are integrated using a method for extracting service choreography model and SLA aggregation patterns from the value network. The procedural framework, on the other side, defines the processes required to design the KPI structure, implement the solution, communicate the results, and derive improvements. We propose an implementation architecture that enables inter-organizational performance management in collaborative environments. Then, the IBM products for business process and performance management (IBM BPM, Business Monitor, and Cognos BI) are employed to implement the proposed architecture. The conceptual framework along with the implementation architecture provides an integrated solution for decentralized performance measurement without the need for a central authority. We demonstrate that the proposed solution enhances flexibility, scalability, and interoperability, and supports transparency of partners’ performance information at an agreed-upon level as a basis for mutual trust.

Management of Virtual Organizations faces new challenges that traditional approaches cannot address. This research proposes a performance measurement framework for service oriented virtual organizations including a structural and a procedural component. The structural framework aligns the activities of partners in a virtual organization at three different layers. The first layer is designed for partners’ strategic alignment through coordination of the value creation network. In the second layer, performance dimensions of partners’ collaboration are defined and mapped to the service choreography model. The third layer focuses on assessing effectiveness and efficiency of partners’ domain specific services, which is designed based on ITIL V3 service level management guidelines. In order to consolidate the structural framework, these three layers are integrated using a method for extracting service choreography model and SLA aggregation patterns from the value network. The procedural framework, on the other side, defines the processes required to design the KPI structure, implement the solution, communicate the results, and derive improvements. We propose an implementation architecture that enables inter-organizational performance management in collaborative environments. Then, the IBM products for business process and performance management (IBM BPM, Business Monitor, and Cognos BI) are employed to implement the proposed architecture. The conceptual framework along with the implementation architecture provides an integrated solution for decentralized performance measurement without the need for a central authority. We demonstrate that the proposed solution enhances flexibility, scalability, and interoperability, and supports transparency of partners’ performance information at an agreed-upon level as a basis for mutual trust.

We study techniques to enforce and provision differentiated service levels in Computational Grid systems. The Grid offers simplified provisioning of peak-capacity for applications with computational requirements beyond local machines and clusters, by sharing resources across organizational boundaries. Current systems have focussed on access control, i.e., managing who is allowed to run applications on remote sites. Very little work has been done on providing differentiated service levels for those applications that are admitted. This leads to a number of problems when scheduling jobs in a fair and efficient way. For example, users with a large number of long-running jobs could starve out others, both intentionally and non-intentionally. We investigate the requirements of High Performance Computing (HPC) applications that run in academic Grid systems, and propose two models of service-level management. Our first model is based on global real-time quota enforcement, where projects are granted resource quota, such as CPU hours, across the Grid by a centralized allocation authority. We implement the SweGrid Accounting System to enforce quota allocated by the Swedish National Allocations Committee in the SweGrid production Grid, which connects six Swedish HPC centers. A flexible authorization policy framework allows provisioning and enforcement of two different service levels across the SweGrid clusters; high-priority and low-priority jobs. As a solution to more fine-grained control over service levels we propose and implement a Grid Market system, using a market-based resource allocator called Tycoon. The conclusion of our research is that although the Grid accounting solution offers better service level enforcement support than state-of-the-art production Grid systems, it turned out to be complex to set the resource price and other policies manually, while ensuring fairness and efficiency of the system. Our Grid Market on the other hand sets the price according to the dynamic demand, and it is further incentive compatible, in that the overall system state remains healthy even in the presence of strategic users. / QC 20101116

In this thesis, I, as the author, have tried to propose a methodology for establishing IT service taxonomy in order to elaborate IT service portfolio and IT service catalog. As a core part of my thesis, IT service taxonomy has been discussed to manage IT services in an efficient way in the small and medium sized enterprises The small and medium sized enterprises can use the categories and sub categories of this taxonomy to define their service catalog and portfolio. In that regards, a list of IT services has been identified from the industries and has been used to define the IT service taxonomy.

Made available in DSpace on 2016-12-23T14:07:28Z (GMT). No. of bitstreams: 1 DissertacaoMestradoRodrigoBonfaDrago.pdf: 3999277 bytes, checksum: b9b03d58f60a9f3c894c805a35a87dcc (MD5) Previous issue date: 2006-04-12 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / The increasing complexity in the networks and applications with the new demands for distributed information technology (IT) services has changed the way systems are managed. The focus has moved from device-oriented management to service-oriented management. Currently, small and large companies demand an IT infrastructure to support their business, and such infrasctructure has to be monitored. Quantitative metrics should be measured and used to get a feedback about the IT environment functionalities. This work proposes a web-based network service management system that use open standards and free software to help the practice of Service Level Management (SLM) at IT environments. A metric here named Service Availability Index - is presented as a way to measure the IT environment system functionalities. To validate the prototype developed for the system proposed, a case study is presented and the main results are analyzed. / Devido ao crescimento da complexidade das redes e aplicações e à necessidade de serviços de TI (Tecnologia da Informação) distribuídos, houve uma mudança na forma pela qual os sistemas são gerenciados. O foco moveu-se da gerência orientada a dispositivos para a gerência orientada a serviços. Atualmente, pequenas e grandes organizações precisam de uma infra-estrutura de TI para suportar seus negócios, e esta infra-estrutura deve ser monitorada a fim de garantir o seu bom funcionamento. Métricas quantitativas devem ser medidas e utilizadas para se obter um feedback a respeito do funcionamento do ambiente de TI. Este trabalho propõe um sistema de gerência de serviços de rede, baseado em web, que utiliza padrões abertos e software livre, para ajudar na prática do Gerenciamento de Nível de Serviço (SLM Service Level Management) em ambientes de TI. Uma métrica aqui chamada de Índice de Disponibilidade de Sistema - IDS é considerada como uma maneira de medir a funcionalidade dos sistemas de ambientes de TI. A fim de validar o protótipo desenvolvido para o sistema proposto, um estudo de caso é apresentado e os principais resultados são analisados.

One of the key processes of IS/IT service provider is Service Level Management. IT service provider faces a problem how the services should be defined, how a balanced service portfolio should be set up and how the processes covering the service management should be designed to meet strategic goals of the organization. The thesis focuses on IS/IT service portfolio design and management with a particular focus on infrastructure services. General goal of the thesis is to support IS/IT service provider's activities directly linked with service level management, IT financial management and IT service portfolio design. The thesis puts together theoretical sources in the area of IT Governance, generally accepted methodologies and best practices, actual market trends and author's experience. The theoretical part maps current development in the field of IS/IT service management, summarizes relevant theoretical inputs, categorizes IS/IT services, gives an overview of the most commonly used pricing models and presents actual IS/IT market trends, such as SaaS or Utility Computing. The application part, which follows the theoretical part of the thesis, is built upon fundaments of key findings and conclusions of the theoretical part. Application section introduces a method of service level management transformation and a business model suitable for IS/IT service provider. Furthermore a process of IS/IT service portfolio design is introduced. The process is supported by an analytical tool, which enables analysis of provider's financial and infrastructure data. The output of the analysis is a set of scenarios of IS/IT service portfolio including revenue, costs and utilization of resources and technologies. Academic benefit is seen not only in the consolidation of relevant theoretical sources dealing with IT service design and management. The thesis also introduces frameworks for optimization of service level management process and a concept of a IT service provider's business model. A practical contribution of the thesis is seen in a process of IT service portfolio design supported by an analytical tool for provider's real data processing, covering demand, capacity, utilization and financials.

隨著主管機關對金融商品規定的鬆綁，金融機構業務型態的變化越來越多，量也越來越大，對資訊系統依賴的程度也越來越高。其中，證券公司業務的執行及對客戶的服務，更是高度依賴IT服務的可用性、可靠性、安全性和表現的效能。然而，IT與業務部門需求認知上的落差及IT部門在企業內扮演角色認知上的錯誤及不當的IT管理方式，反而讓問題的發生層出不窮，IT也經常落入問題處理的深淵。 問題的複雜度雖然不斷提高，相對於業務單位對系統穩定性的要求卻更高。問題是：企業不可能因為追求效率上的完美而不斷花錢投入IT資源。在IT資源有限的情況下，IT部門須對這些問題，進行更有效的管理及回應。因此，IT治理不僅已成為金融機構實現業務目標的基本要素，也是獲取客戶信任不可或缺的元素。本論文則嘗試透過導入行之有年的ITIL管理方法，協助解決證券公司資訊部門的困境。 為能達到良好的IT服務治理結果，本研究針對業務單位對IT部門所提供的資訊服務期望，透過ITIL的服務水準管理流程（Service Level Management，SLM）來加以定義及描述。主要做法： 1.利用ITIL流程改善模型（Process Improvement Model）的四階段步驟，參考營業服務管理（Business Service Management，BSM）的觀念與做法，讓IT單位與業務部門能有更好的溝通。 2.依據溝通的結果產出實際可行之服務水準協議。簡言之，即是由使用者的角度去找出所需達到的IT服務標準。還可依此畫出營業服務與IT服務間之對應關係，明確彼此的責任。 3.透過重複不斷的檢討與回饋，讓IT服務能越來越符合實際業務的需要。 本研究發現，透過案例「致富快手」系統在服務水準管理流程中所獲得的業務單位對IT部門的服務期望資訊，對照現況IT部門的服務表現與目標水準的差異分析。的確可以協助IT部門就資訊服務的提供現況來推導，以獲致未來可進行服務改善的目標項目。而不再是以個人的直覺來進行系統維護與IT投資，這些效益還包括： 1.增進IT了解自己在企業營運上的價值貢獻；體會與業務單位的分工合作關係，減輕彼此的對立。 2.營業服務關鍵流程協助IT部門進行資源佈署，優化IT投資。 3.對營業服務關鍵流程，提供一具體、可量化的衡量標準與描述。可依此建立SLA與OLA。 4.服務期望與服務現況比較，了解IT服務對營業服務支持程度。 5.服務期望與服務現況差異化分析，為日後服務改善之依據。 6.營業服務與IT資源對應，明確IT資源關鍵元件；為備援建置及容量管理之重點對象。 7.以Business/IT知識庫檢視監控機制涵蓋程度，做為服務改善之目標。 8.透明IT營業支援服務體系，增進雙方溝通與問題處理有效性。 研究中也發現，服務水準管理流程只是在規範IT服務相關單位的行為活動。也就是說，服務水準管理流程其實只是在訂定IT服務的目標，至於應如何來實現，仍須藉由其他服務提供(Service Support)流程的有效支持；改善的具體實現，又會反應在服務水準指標的執行結果上，兩者其實為互相呼應，相輔相成的因果關係。 / As the finance production deregulates, the financial institutions could run more and more various businesses. In order to offer quality service, it’s necessary to have IT support in the back. So does Security Corporation. The business performances of a security corporation almost depend on an available, reliable, and secure IT services. However, there are some problems occurred between the business and IT units. In one hand, they both have misunderstanding in cognition to the other party; on the other hand, passive attitude and ineffective management of IT department made two groups always unsatisfied to each other. Furthermore, the spending of IT investment in a company is limited, but the business units continually require of better performance requirement. The atmosphere between two parties is in tension. For solving those problems, the study of IT governance comes out. It helps organization offer better IT service under limited resources. Moreover, IT governance is not only the effective method to realize business object, but the important one to obtain the customers’ trust. As the result, we use one of IT governance methodology, ITIL (IT Infrastructure Library), to resolve the predicament of IT department in the security corporation. In this paper, we identify the expectation to IT service from Business units using the concept of SLM (Service Level Management) module described in ITIL. Our analysis steps are as follow: I.Understand the needs: We use the “Process Improvement Model” in ITIL and the concept in BSM (Business Service Management) to analyze the “real” requirements from business units. II.Settle and implement the agreements: After clarify the relationship between business function and IT service, the most important document in SLM, SLA (Service Level Agreement), will be ready for recording the result of negotiation of two parties. It’s also good for addressing the responsibility. III.Review and improve the IT services: After implement, it’s necessary to review the result, and get the feedback for next service improvement. By continuous improvement, IT service will be able to match the business needs. In the case, we conduct the gap analysis between the expectation of business department and real performance of IT service. It helps IT department to understand “where we are” and “what we want”. Through the result of the comparison, it provides an obvious direction for service improvement, instead of by “intuition” only. It also includes other benefits like that: I.The IT department can realize its role in whole enterprise. It could have better cooperation with business department. II.The BSM helps IT manager to deploy its resources and optimize the investment in IT. III.The methodology provides a concrete, measurable standard and description to the business. It’s useful to establish the SLA and OLA (Operation Level Agreement). IV.The comparison between expectation and current status can show how the level of IT services support business services. V.The gap analysis provides the direction of service improvement. VI.The IT resources components are highlighted. Those components are major objects in backup mechanism and capacity management. VII.The Business/IT Knowledge base helps to review the range of monitor. VIII.The IT support system can be revealed. It is benefit to communication and problem management. The study shows that Service Level Management focus on how to restrict the action of IT Services provider. In other words, the whole process just helps to fine out the object of IT Services. It also needs support of other Service Support processes. Furthermore, the services’ quality improve will be showed by the Service Level Index. The SLM and other process complement to each other. To sum up, SLM is good for IT units to identifying needs and catching them. However, it should implement with other process to get better effect.