It is critical for any business to stay on top of emerging developments and swiftly adapt to give high-end services to their clients in an ever-changing industry. This adaptation can be made by consistently improving their service strategy and design, which will boost the value and consumption of the services. It is precisely what ITIL Service Lifecycle provides.

ITIL Service Lifecycle is a system of approaches to managing the service lifecycle of whatever an enterprise delivers product or service. While it is a strategy for IT Service Management (ITSM), it may be used by any business, regardless of size, to oversee the whole lifecycle of any service that it provides. The service lifecycle approach improves service management by utilizing five stages to generate greater operational efficiency.

IT operations, such as processes and products, have lifecycles. Services lifecycles are described in ITIL service management as best practices explaining the process of initiating and maintaining services. Services cannot be developed or maintained with maximum efficacy and efficiency unless this ITIL lifecycle is followed. For IT services to function properly, it is critical to follow the concepts of ITIL lifecycle management. The ITIL service lifecycle is divided into five parts. These phases are inextricably related. This is done to guarantee that the final objective is constantly kept in mind during all phases of the ITIL lifecycle for services. This interconnected system is intended to provide constant IT services.

The ITIL stages encompass 5 phases: Service Strategy, Service Design, Service Transition, Service Operation, and Continual Service Improvement. Service strategy is central to the ITIL lifecycle. The steps of Service Design, Service Transition and Service Operation provide a logical progression to transform a service from a concept into a service that consumers can utilize.

All of them are related to the Service Strategy stage because any actions taken in these three phases must be coordinated with the service's strategic goals. The stage of Continual Service Improvement encompasses all of the previous phases in the ITIL Lifecycle model. This implies that continuous improvement should be carried out across the service lifespan. Not merely in the ending, after the stage of Service Operation. From the Service Strategy stage all the way through to the Service Operation stage, service management should aim to enhance their service procedures.

The 5 stages of ITIL can further be comprehended as follows:

1.     Service Strategy - This stage aids in the development of an approach on the basis of current market condition and business context for the IT services provided by the organization in order to give a cost-effective alternative for service management without sacrificing the level of service delivery to clients. It works by knowing the clients, the types of IT services that must be provided, the costs associated, the resources expected, and the competencies required to deliver them, in order to develop an efficient plan to serve the customers. The Service Strategy stage provides the principles and purposes for managing IT services that are linked with the commercial objectives of the firm.

2.     Service Design - The second phase is to focus on the layout that was planned in the previous stage after setting out the strategy for servicing the clients. The layout must be completed in order to meet the goals specified for the business's success. As a result, the range of the process involves creating new services as well as working on current ones to enhance them using the newly created service strategy. This procedure will necessitate business analysts and IT experts to meet customer demands in a cost-effective way by designing new services leveraging the new updated architecture and technology. Also included are the IT Service Management system and instruments for administering the old services and making the necessary changes to fulfill the customer's requirements. This is one of the ITIL lifecycle phases in IT services that is productive and innovative. Here, service providers may build services that would most likely gratify clients. Attention to detail, as well as forethought, are also important factors in success here. It is critical that the appropriate team is assigned to accomplish this step of the ITIL services lifecycle.

3.     Service Transition- The procedure guarantees that new updates and adjustments are effectively integrated into the service lifecycle while not interfering with other current services or operations. It is performed out in a well-coordinated fashion, utilizing cost-effective processes and tools. The constructed design is evaluated and executed in the lifecycle in a constructive way through service transition, evaluating all hazards, and preparing ways to address them in order to give the required value and service quality to the consumers. This stage thus controls the transition and the activities associated with it by tackling the changes done and their influence on the services in order to satisfy the users' expectations. This step entails preparing services and procedures for use in a live environment. It also involves assessment prior to entering the live environment. Following this stage, clients are supplied with services and processes. It is critical to test all conceivable situations that might occur in a real setting. Its purpose is to ensure that there are no faults when clients begin to utilize the service. In this step of the ITIL lifecycle, accuracy is essential.

4.     Service Operation- Following the conclusion of the Service Transition stage, the Service Operation step provides such services to the targeted clients. As a result, during this phase, the aim of delivering services effectively and reliably is met while also maintaining a tight eye on the expenditures and hazards associated, if any. It performs out the actions and procedures necessary to give the best services to consumers and preserve user happiness by analyzing the system's daily operations and addressing any service failures that may arise at the user end. It replies to user queries, instructs them on how to use the services so that everything goes well on their part, and resolves any issues that may emerge when using the service. Customers' service level agreements bind the firm at this point. As a result, the provider must guarantee that the organization follows the terms of the agreement.

5.     Continual Service Improvement - Continual Service Improvement adheres to quality check requirements, in accordance with the ISO 20000 idea of continuous improvement. It seeks to provide a framework for making IT services more efficient and useful through ongoing feedback and improvement of service levels and infrastructure used to deliver the services. A continual evaluation also aids in not only removing current hurdles from the project but even in making it much smoother and more in line with client requirements, since there is always an opportunity for improvement in IT services and products. This step similar to others in the ITIL lifecycle is related to the Service Strategy stage. Critical success factors must be in effect to establish if the service is performing adequately, and the provider must assure that the service meets the strategic goals associated with the specific IT service. Once planned aims and aspirations have been fulfilled, new targets must be established, and service management should strive to meet those specific goals. Furthermore, improvements to existing services and processes are carried out within the framework of the Continual Service Improvement lifecycle stage.

After going through the preceding steps, the organization will be able to determine where it is missing. Is it necessary for them to revise their service strategy? Is it accurate that service delivery does not meet the demand of the consumers? Or is it a failure to provide the highest degree of service possible? Whichever the cause, it may be addressed with successfully, provided the organization knows its objectives and applies the techniques taught above as and when necessary. Determine the cause of the problem, and then determine the phase at which it is happening, and then apply the advice of that phase to comprehend how to fix and repair the service interruption. This will assist to boost the service's commercial viewpoint and market value, as well as retain the faith of its consumers for future use.

As a result, ITIL, with its five unique ITIL lifecycle stages, has captured perfectly the guidelines for processes required to operate and administer the service lifecycle for IT services and just about every other service for all types of enterprises. It improves businesses' capacity to provide high-quality IT services and service lifecycle management to their clients in an efficient and productive way.

When each element of the ITIL 5 stages service lifecycle is appropriately managed, the company can be confident that their operations will be harmonized with their business strategy. Throughout the ITIL phases, service remedies will be built to meet all of the standards set during the System Design phase. They will be seamlessly integrated into a live setting for client use. Because the Continual Service Improvement stage of the ITIL lifecycle for services is ongoing, every modification that can be made to better the service's efficiency will be undertaken. It also ensures that the service will gradually evolve into one that will become progressively beneficial over time in terms of profit.

Simpliaxis is one of the leading professional certification training providers in the world offering courses related to IT service management (ITSM). We offer ITIL 4 Foundation Certification Training  to both individuals and corporate groups through instructor-led classroom and online virtual sessions.