It uses EA methods and visualizations to depict the complex interrelationships between the envisioned business capabilities, data, applications and systems, technologies and infrastructure. Two risk estimates are given: (1) for the component unprotected by any security mechanisms and (2) for the component protected by the security mechanisms described in the Allocation of Security Mechanisms to System Components model of the Security Architecture. Internal Management: manages IRS human capital and financial accounting. Knowledge Management (KM) Data. The principles contained in the EA are statements describing the preferred architectural direction for the IRS. Security Requirements: Specifies security requirements–particularly, technical (that is, information technology [IT]) security requirements–for the Target Architecture, Traceability of Privacy and Technical Security Requirements to Business Process Security and Privacy Considerations: Traces the security requirements of the previous model to what are called the security considerations of target business processes, Crosswalk of NIST SP 800-53 and ETA Security Requirements: A crosswalk of the Target Architecture technical security requirements and the controls specified in NIST SP 800-53, Recommended Security Controls for Federal Information Systems, Revision 1, Other Models of the Target Architecture Security View. The multi-tier model uses software that runs as separate processes on the same machine using interprocess communication (IPC), or on different machines with communication… The EA Guidance document provides guidance and practical reference for developers who are developing applications in compliance with the IRS Enterprise Architecture (EA). IRM Strategic Plan The Role of Enterprise Architecture 3 … Ensuring that their project scope is unique and well understood by the project team, key stakeholders and sponsors. The ABA provides the relationships between elements within each domain, for example, applications are linked to the technology platforms that host the application; technology platforms are linked to the physical and logical locations where they reside. Infrastructure architecture: The Location Types definitions do not try to define organizational locations, which tend to change over time. Program Goals: The objectives of the EA include: Managing change within the IRS as it modernizes, Providing source of document of where business is going and how we will conduct business in the future, Identifying business processes and their interactions, Providing a foundation for defining the scopes of modernization projects, Establishing requirements, design and transition for project development, Developing guiding principles, constraints, and assumptions for project development, Identifying security and privacy needs for project development, Establishing system standards and conventions, and define how tools will be used by projects, Developing sequence plan for transforming Current Production Environment(CPE) into future environment. Which of the following are the three main … The target architecture supports the fulfillment of the IRS mission and strategic goals by establishing a three to five-year outlook that drives information technology investment decisions based on priorities around modernizing front-line tax administration and supporting technical infrastructure. Segment architecture is fully reconciled with the agency enterprise architecture. Audience: (1). Provide high level strategic goals from which actionable goals can be derived. In addition, the EA provides: Tables of Functions – Systems Allocations, Tables of Data Classes – Databases Allocations, Tables of Service Entities – Systems Allocations, Business Services mapped to Domains and Projects/Sources. Business drivers defined in the business architecture lead to the elaboration of functional and technical requirements. Acting CIO, Information Technology. EA leverages existing systems, as defined in the As-Built Architecture, and new development to build capabilities, optimize capacity, manage program costs, and deliver business value on an incremental and frequent basis. The EA describes linkages between every Tax Administration Services, Support Delivery of Services and Internal Management of IRS Resources business process as defined in the End-to-End Business Process Views. Prioritizing various projects and related investments. Foster Collaboration and Coordination: The ETB promotes dialog and collaborative planning across the enterprise. The Organization Model View consists of the following: Organization Descriptions identifies and describes the organizational entities that comprise the IRS. STM identifies, approves, and manages the technology products, service contracts (including cloud), and standards that define the business initiatives affecting IT. The core IRS business processes support the strategic goals as described in the Strategic Plan. The Location Type Definitions identify and classify all of the distinct types of locations where IRS conducts business (directly or indirectly) or where critical functions are performed in support of IRS business or technical operations. The IRS Technology blueprint is a living document that is continuously reviewed and updated as appropriate. The Security, Section 508, and Privacy Work Products are a subset of the Systems Architecture work products. The ESP focuses on the functionality of standards and approved products. Outline potential areas of process change. STM also provides leadership and guidance for emerging technologies with the approval of Proof-of-Concepts and Demos. Common Business Services: includes capabilities that are applicable across business domains and systems, such as case management, workflow management, and document and image management. The next sections describe these stages in more detail. The security architecture view of the Target Architecture consists of other models besides the three named just above. Enterprise Architecture ComponentsEnterprise Architecture components include: 1. Business Information Systems: A Business Information System is a computer-based business information system that is being managed through the Metabase. The Enterprise Architecture Requirements initiative include programmatic, security, and privacy requirements. Achieving balance and alignment within the IT project portfolio. A complete solution is likely to be composed of a collection of well-integrated products that each provides a subset of the ESM mechanisms. Sensitivity Classification of ECDM Data Classes (part of the Data Requirements work product). FEAv2 is the implementation of the Common Approach, it provides design and analysis methods to support shared service implementation, DGS, IRM Strategic Plans, and PortfolioStat investment reviews. It draws its base data from the Enterprise Transition Strategy (ETS). The EA is essential to the successful evolution of IRS IT systems and the Agency’s necessary accommodation of periodic business changes, and its development of modernized systems. The ESP complies with high-level section 508 requirements. Each is described in more detail in the following subsection but both pertain to organizing the data needed for the administration of the business of the IRS. Sensitivity Classification of ECDM Data Classes: Identifies the sensitivity classification of each of the data classes of the Enterprise Conceptual Data Model (ECDM). These standards contain technical criteria specific to the usage of technologies. This information is critical for integrated portfolio planning and project sequencing. The RA provides an integrated view of the IRS-wide consolidated IT project portfolio and its effect on the Enterprise Architecture and IT environment. Segment architecture is developed to support a clear and concise value proposition linked to the agency mission, as well as to its strategic goals and objectives. (1) All of the existing content, last updated in 2009, has been revised and replaced. The external entities are organized hierarchically with top-level entities broken down into second-level and sometimes third-level entities. Further, the ETB is regularly socialized through briefings, and these sessions provide a forum for stakeholders to provide feedback. A list of custodial financial controls required by the process (when applicable). The goal of enterprise architecture is to create a unified IT environment across the firm or all of the firm's business units, with tight symbiotic links to the business side of the organization and its strategy. Much of the detailed architecture guidance around the technology architecture is provided in the IRS TRM manual. Standards and Technology Management (STM) is responsible for all COTs-based information technology insertions within the IRS. It illustrates the impacts of transition on the current production environment and highlights system retirements expected to result from modernization efforts. The goal of the approval process is to align to the strategic direction, ensure products are supported (e.g. The following list includes all of the work products from the Business Architecture and also includes the Programmatic Requirements. Business investments and resources are also fully aligned with the approved segment architecture. The Business Architecture comprises the following content areas: Business Services and Processes, including a description of an initial set of Business Services. The common architecture decisions for technology, application, and data model views (that is, the Technical Architecture) are documented in the Application Architecture (Official Use Only), Data Architecture, and Conceptual Technology Architecture models provided by the EA. User and Network Services: delivers premier IT products and services to the IRS, provides a single point of contact for requesting MITS products and services; supports the desktop environment as well as inventory management, workstation software integration, data security. Release Architecture is an incremental step along the transition path. The inclusion of all systems components in the management solution is vital to ensure a consistent, cost-effective, and highly available operating environment. Figure 107 depicts the Metabase high-level data model for storing the data contained in the enterprise’s architecture. The IRS EA captures the current state of the IRS Enterprise in an As-Built Architecture, defines the desired future state of the IRS Enterprise in a Target Architecture, and defines a plan for getting from the current state to the desired future state in an Enterprise Transition Plan. The three top-level areas are: Transaction Data. It also is likely that the tools that are deployed may vary from one platform type to another. Without enforcement of the EA, the IRS risks buying software and building systems that are duplicative, incompatible, and unnecessarily costly to maintain and integrate. The RA also documents dependencies between different projects and their releases. Export the data from SQL Server to flat files (bcp utility). It describes the external entities with which the IRS interacts. The data architecture component of the EA addresses the key principles that affect the way that projects create and use data. Recognizing the dependencies and establishing key attributes of projects early in the life cycle, while the cost of changes or fixing problems is relatively small. This description is intended to guide IRS projects in achieving and demonstrating their compliance with the Enterprise Architecture. Chapter 3: enterprise systems architecture. The JFMIP states that Effective financial management depends upon appropriate control of business transactions, in accordance with internal control standards, and recording business event information in a manner that satisfies multiple users and uses. The IRS EA describes high-level system performance requirements. Focus on the future state defined as five years out and beyond. Enterprise Architecture, of which the As-Built-Architecture (ABA) is one component, is mandated by a series of federal laws to maintain and report annually to OMB on their respective ABAs. This enables high-level impact assessment of investment decisions. The IRS EA discusses Enterprise System Management (ESM) as the basis for designing and deploying a complete systems management capability at the IRS. It involves firm leadership, a complete knowledge of organizational structure, a … As appropriate, Enterprise Functional Requirements and Data Requirements are allocated to these systems. Privacy Requirements Models: The primary purpose of the Privacy Requirements model is to specify privacy requirements for the IRS Enterprise Target Architecture (ETA). Seventeen components of an enterprise architecture are classified and described in this chapter download. Conducting compliance certifications – by ensuring project deliverables and designs align with the vision and high level designs contained in the Business Architecture. The Enterprise Systems Management (ESM) Requirements exist primarily because systems and networks are not currently self-healing. Enterprise Services: sets critical enterprise standards to promote compatibility and common practices across the IRS, applies engineering expertise directly to projects and programs, establishes frameworks for IT demand management and prioritization, and establishes governance and control methodologies for the IT portfolio. The goals of defining these common decisions are to: Ensure that projects deliver functionality that can be integrated and maintained in the IRS environment. Term. This enables high-level impact assessment of investment decisions and programmatic changes on the overall plans for moving toward the target EA. Employing a set of comprehensive sources of guidance including the Enterprise Lifecycle (ELC) Methodology, the ConOps Guidance Toolkit, and the supplementary materials available on the IRS EA website. It provides high-level perspectives of the application architecture, the data architecture, and the conceptual technology architecture views. Security Categories of ETA Business Processes. Coordinating and optimizing key business operations and services across the organization. While the business architecture covers concepts related to business process, organization, and location, the technical architecture covers concepts and strategies related to data, applications, and technology. The IRS Business Architecture defines the business aspects of the target state of the IRS Enterprise. Employees on the future state of an organization or business area processing: provides computing and communication supporting. 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