The terms Information Technology Enterprise Management (ITEM) or Enterprise Information Technology Management (EITM) refer to concepts, processes, and systems whose purpose is the efficient management of complex enterprise information technology infrastructures.
Today's networked information systems have become increasingly complex, they have presented increasing challenges to government and commercial organizations. Typical challenges include:
In today's enterprise infrastructures, a common concern is understanding the network topology, including information system servers, users, communication paths and information flows. Within this, organizations must assess the role of their legacy systems, and migration strategies. Plans must include the constraints of communications infrastructures.
Change is a core part of the internet. It was designed with an open architecture including layers of services. Applications are built upon these layers, and as new capabilities and new service offerings are utilized, it is a continuing challenge to maintain compatibility between the old and new systems. An interesting paradox during these changes has been the role of the Data Center. Once regarded as out-dated in the world of distributed computing, Data Centers have returned to new relevance in the world of Web Services.
The fundamental security requirement is controlling access to information, assuring that the right information is available only to the intended users. Sharing information with partners and customers across shared infrastructures involves special challenges, beginning with starting with the correct solution concept and architecture. Often information system must provide secured services to external users, and with methods that do not compromise the organizational intranets.
Implementing security across a large enterprise is a special challenge, since it involves issues of scalability. An inefficient solution concept can be forced to work in a small environment, but will typically fail when attempted on the scale of most enterprises. Typical challenges include supporting required user services, and maintaining cost-effective operations.
The enterprise includes users, workstations, servers, networks, and boundary systems. Managing these involves ensuring that the users are provided with the capabilities to conduct their responsibilities in an efficient and secure manner. This is accomplished through the management of assets and services.
Management of Assets
Management of Services
The Information Technology Infrastructure Library (ITIL), is a set of practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business. The names ITIL and IT Infrastructure Library are registered trademarks of the British Government who created the terms.
The Configuration Management Database (CMDB) is a repository of information related to all the components of an information system. It contains the details of the configuration items (CI) in the IT infrastructure.