Enterprise Life Cycle - AbsoluteAstronomy.com

Enterprise Life Cycle in enterprise architecture

Enterprise architecture

An enterprise architecture is a rigorous description of the structure of an enterprise, which comprises enterprise components , the externally visible properties of those components, and the relationships between them...

is the dynamic, iterative process

Business process

A business process or business method is a collection of related, structured activities or tasks that produce a specific service or product for a particular customer or customers...

of changing the enterprise

Business

A business is an organization engaged in the trade of goods, services, or both to consumers. Businesses are predominant in capitalist economies, where most of them are privately owned and administered to earn profit to increase the wealth of their owners. Businesses may also be not-for-profit...

over time by incorporating new business process

Business process

A business process or business method is a collection of related, structured activities or tasks that produce a specific service or product for a particular customer or customers...

es, new technology

Technology

Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...

, and new capabilities, as well as maintenance

Software maintenance

Software Maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes....

, disposition

Disposition

A disposition is a habit, a preparation, a state of readiness, or a tendency to act in a specified way.The terms dispositional belief and occurrent belief refer, in the former case, to a belief that is held in the mind but not currently being considered, and in the latter case, to a belief that is...

and disposal

Disposal

A disposal occurs in Australian rules football when a player either kicks or handballs the football. A disposal is not counted if a player fumbles or illegally disposes the ball...

of existing elements of the enterprise.

Overview

The enterprise life cycle is a concept in Enterprise Architecture

Enterprise architecture

(EA). The Enterprise Architecture process is closely related to other processes, such as enterprise engineering

Enterprise engineering

Enterprise engineering is a subdiscipline of systems engineering, which applies the knowledge and methods of systems engineering to the design of businesses. The discipline examines each aspect of the enterprise, including business processes, information flows, and organizational structure...

and program management cycle, more commonly known as the Systems Development Life Cycle

Systems Development Life Cycle

The systems development life cycle , or software development life cycle in systems engineering, information systems and software engineering, is a process of creating or altering information systems, and the models and methodologies that people use to develop these systems.In software engineering...

. This concept aids in the implementation of an Enterprise Architecture, and the Capital Planning and Investment Control (CPIC) process that selects, controls, and evaluates investments. Overlying these processes are human capital management and information security management. When these processes work together effectively, the enterprise can effectively manage information technology

Information technology

Information technology is the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a microelectronics-based combination of computing and telecommunications...

as a strategic resource and business process enabler. When these processes are properly synchronized, systems migrate efficiently from legacy technology environments through evolutionary and incremental developments, and the Agency is able to demonstrate its return on investment. The figure on top illustrates the interaction of the dynamic and interactive cycles as they would occur over time.

Enterprise Architecture Process

As a prerequisite to the development of every enterprise architecture, each Agency should establish the need to develop an EA and formulate a strategy that includes the definition of a vision, objectives, and principles. The figure shows a representation of the EA process. Executive buy-in and support should be established and an architectural team created within the organization. The team defines an approach and process tailored to Agency needs. The architecture team implements the process to build both the baseline and target EAs. The architecture team also generates a sequencing plan for the transition of systems, applications, and associated business practices predicated upon a detailed gap analysis. The architecture is employed in the CPIC and the enterprise engineering and program management processes via prioritized, incremental projects and the insertion of emerging new technologies. Lastly, the architectures are maintained through a continuous modification to reflect the Agency's current baseline and target business practices, organizational goals, visions, technology, and infrastructure.

Architecture Life Cycle

The figure depicts the life of the architecture as it evolves and shows the process that the architecture description supports in the development, analysis, and evolution of the implemented architecture. In this illustration, the Operational View

Operational View

Operational View is one of the basic views, defined in the enterprise architecture of the Department of Defense Architecture Framework V1.5 . Under DODAF 2, which became operational in 2009, the collections of views are now termed 'viewpoints' and no longer views.Other enterprise architecture...

is used to drive the requirements that are evaluated against the Systems View. Operational deficiencies are derived from the analysis, and viable candidates are identified. These candidates can take the form of either materiel or non- materiel solutions and are modeled back into the Operational and Systems Views of the architecture.

The architecture is re-analyzed, and the process continues until the operational deficiencies are minimized. The final sets of viable candidates are assessed for operational viability. Based on the results of the assessments, design changes are made and submitted for inclusion into the budgeting process. This process of developing, analyzing, and modifying continues throughout the architecture’s life cycle.

Enterprise Life Cycle activities

An Enterprise Life Cycle integrates the management, business, and engineering life cycle processes that span the enterprise to align its business and IT activities. Enterprise Life Cycle refers generally to an organization’s approach for managing activities and making decisions during ongoing refreshment of business and technical practices to support its enterprise mission. These activities include investment management, project definition, configuration management, accountability, and guidance for systems development according to a System Development Life Cycle (SDLC). The Enterprise Life Cycle applies to enterprise-wide planning activities and decision making. By contrast, a System Development Life Cycle generally refers to practices for building individual systems. Determining what systems to build is an enterprise-level decision.

The figure on the right depicts notional activities of an Enterprise Life Cycle methodology. Within the context of this document, Enterprise Life Cycle does not refer to a specific methodology or a specific bureau’s approach. Each organization needs to follow a documented Enterprise Life Cycle methodology appropriate to its size, the complexity of its enterprise, and the scope of its needs.

Enterprise Performance Life Cycle

The Enterprise Performance Life Cycle (EPLC) encompasses the major business functions executed under the Office of the Chief Information Officer (CIO), and in particular shows at a high level the relationship among the different business functions and both the general order and the iterative nature of their execution. The placement of enterprise architecture

Enterprise architecture

in the center of the EPLC conceptual diagram, shown in the figure, reflects the supporting and enabling role that enterprise architecture serves for the major business functions in the Enterprise Performance Life Cycle.

The Enterprise Architecture

Enterprise architecture

(EA) Program explicitly considers the information needs of the Enterprise Performance Life Cycle (EPLC) processes in developing and enhancing the EA Framework, collecting and populating data in the EA Repository, and developing views, reports, and analytical tools that can be used to facilitate the execution of the EPLC processes. The EPLC conceptual diagram in the figure provides a Departmental perspective of key business functions. The EPLC is also relevant from an individual investment or project perspective, as each new investment passes through each phase of the EPLC. The investment-level perspective is detailed in the an Enterprise Performance Life Cycle Framework.

External links

Enterprise Life Cycle Management presentation 2005
EA in the Federal Enterprise Life Cycle EA in the Federal Enterprise Life Cycle presentation 2006.

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.

Overview

Enterprise Architecture Process

Architecture Life Cycle

Enterprise Life Cycle activities

Enterprise Performance Life Cycle

See also

Further reading

External links