Continuous Service Improvement: This phase defines new requirements for the preceding phases of ITIL based on operational feedback and service levels. It helps to ensure that policies and procedures are followed, that service level agreements are met and that operational lessons learned are incorporated into existing and future service refinements.
This official ITIL Foundation certification course provides you with a general overview of the IT Service Management Lifecycle which is outlined in ITIL’s five core books – Service Strategy, Service Design, Service Transition, Service Operation and Continual Service Improvement. ITIL’s “service lifecycle” consists of 26 processes and four functions.
A basic goal of security management is to ensure adequate information security. The primary goal of information security, in turn, is to protect information assets against risks, and thus to maintain their value to the organization. This is commonly expressed in terms of ensuring their confidentiality, integrity and availability, along with related properties or goals such as authenticity, accountability, non-repudiation and reliability.
Change management aims to ensure that standardised methods and procedures are used for efficient handling of all changes. A change is an event that results in a new status of one or more configuration items (CIs), and which is approved by management, is cost-effective, enhances business process changes (fixes) – all with a minimum risk to IT infrastructure.
Think about the digital services that you use on a daily basis. These were not developed in a vacuum; rather, they were built using an ongoing project management process that took into account not only the objectives of the service, but also the potential issues in developing, delivering and maintaining it. In short, there would have been a huge number of factors to consider.
ICT operations management provides the day-to-day technical supervision of the ICT infrastructure. Often confused with the role of incident management from service support, operations has a more technical bias and is concerned not solely with incidents reported by users, but with events generated by or recorded by the infrastructure. ICT operations may often work closely alongside incident management and the service desk, which are not-necessarily technical, to provide an 'operations bridge'. Operations, however should primarily work from documented processes and procedures and should be concerned with a number of specific sub-processes, such as: output management, job scheduling, backup and restore, network monitoring/management, system monitoring/management, database monitoring/management storage monitoring/management. Operations are responsible for the following:

Not only will you be more confident in your abilities and expertise, but your employers will be impressed as well. Achieving an ITIL certification at any of the more advanced levels will give you a demonstrable advantage over other candidates in a job hiring scenario. Not only does it prove to employers that you are highly skilled and educated in industry best practices, but it will also make their investment in you more lucrative as you’ll be able to breeze through the training process and provide value from the day you’re brought on board. Although becoming ITIL certified may cost you a pretty penny up front, the long-term advantages for job growth may be worth the costs.

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