enterprise architecture consists of the following three major components

Together they provide the rules and form factors to create the … Page Last Reviewed or Updated: 16-Jun-2020, Request for Taxpayer Identification Number (TIN) and Certification, Employers engaged in a trade or business who pay compensation, Electronic Federal Tax Payment System (EFTPS), Major components and sub-components of the EA, IRS Strategic Goals and Business Process Alignment, Business Process / Functional and Data Requirement Matrix, Updating the Enterprise Technology Blueprint, Using the Enterprise-Wide Sequencing Plan, Treasury Inspector General for Tax Administration, 2.15.1 Enterprise Architecture (EA) Overview. Functions that are depicted in activity diagrams using the Unified Modeling Language (UML) notation. In the IRS EA, logical systems are defined across the Enterprise. The goals of defining these common decisions are to: Ensure that projects deliver functionality that can be integrated and maintained in the IRS environment. Assessing all proposed business and application solutions in the context of the business services offered, business process visions, and high level designs to ensure alignment. The next sections describe these stages in more detail. Align Strategic and Architectural Planning: The ETB provides inputs to and receives outputs from other levels of enterprise planning. Infrastructure architecture. IRS business processes are associated with the specific process / role matrices that accompany each business process area description. Introducing automation to improve upon manual activities and processes. The business data, summarized and reorganized for reporting and broad views of types and trends. EA Guidance documents include Enterprise Data Standards and Guidelines (EDSG), Service-Oriented Architecture (SOA) Guidance, .NET Guidance, and Design patterns. It informs, guides, and constrains all IRS IT Projects in how to optimize the interdependencies and interrelationships among business operating divisions and the underlying IT that supports operations. Security Processing Thread (part of the Security Architecture work product). The top level view of OEAF (Figure 1) shows the four major views of the enterprise architecture (Business, Application, Information and Technology) in red. It describes the external entities with which the IRS interacts. Enterprise Target Architecture and its sub-components including EA Strategy and Function, EA Roadmap, EA Principles, EA Requirements, Business Architecture, Organization and Location, Data Architecture, Application and Technology which covers System Architecture, System Interfaces, Technical Architecture, Application Architecture, Security Architecture, System Management Architecture, Technical Guidance and Design Patterns, Service Repository and Service Oriented Architecture, and Enterprise Standards Profile. Data Requirements (Sensitivity Classification of Data Classes). Table 8 enumerates and describes each of the components. The EA describes the future-state business processes that will support the IRS. The Enterprise Standards Profile is primarily of interest to readers involved with design, development, and product selection. Business and IT Planners: support the following planning activities: Assessing all proposed business and technology solutions in the context and framework of the Business Architecture to avoid overlaps and duplication of proposed projects. Levels for enterprise integration. These key concepts are: The enterprise context diagram profiles the business environment in which the IRS operates. Identify the capabilities necessary for achieving the future state. Role Definitions identify, classify and explain the roles that support the core business of the IRS. In addition, EA manages performance, functional, and system management requirements and provides traceability of data and functional requirements to business processes. The IRS has added custodial requirements to manage the receipt and disbursement, and related assets and liabilities, of taxpayer accounts. Enterprise architecture regards the enterprise as a large and complex system or system of systems. Process flow diagrams that illustrate functions within major processes (shows interrelationships between subprocesses). The IRS EA describes processing threads that are used to demonstrate how system software applications are involved in executing high-level business processes. Enterprise Architecture directs all users of its products to develop, procure, maintain, or use Information and Communication Technology (ICT) ensure that these technologies provide access to information and data for people with disabilities. Focus on the future state defined as five years out and beyond. Taken as a whole, these Work Products define the measures necessary to protect sensitive IRS assets, including taxpayer information. To achieve this objective, segment architecture is used to identify the enterprise segments and to link enterprise-level planning with the development and implementation of solution architecture. Cybersecurity: ensures compliance with federal statutory, legislative, and regulatory requirements governing confidentiality, integrity, and availability of IRS electronic systems, services, and data in accordance with FISMA. ESM mechanisms will be used to execute and enforce most of these policies and procedures. Coordinating and optimizing key business operations and services across the organization. The scope encompasses the entire IRS Enterprise, including advisory functions, such as Chief Counsel and the National Taxpayer Advocate, as well as all Operational Support components. Ensuring that their work is integrated with other projects and within the operating units. Further, the ETB is regularly socialized through briefings, and these sessions provide a forum for stakeholders to provide feedback. Sensitivity Classification of ECDM Data Classes: Identifies the sensitivity classification of each of the data classes of the Enterprise Conceptual Data Model (ECDM). 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. In order to move the IRS towards the goal of self-healing, self-managed systems, applications, and networks, all devices, systems, applications, processes, and system platforms must participate in the overall systems management strategy. Filing and Payment Compliance: includes collecting delinquent tax obligations and securing delinquent tax returns. Enterprise architecture consists of the following three major components: hardware, software, and telecommunications business strategy, business goals, and objectives application architecture, information architecture, and technical architecture process modeling, process documentation, and business process reengineering View Feedback … The IRS EA Information Dictionary is located within the Glossary of IRS Business Terminology. These are then used to develop a set of abstract systems, which in turn define a set of conceptual target-state applications that manage enterprise data on enterprise-approved technology platforms. This supports a services approach that complies with the layered approach specified in the TRM. The Shared Environments database – the main data store for a commerce deployment. Question 8 Correct 5.00 points out of 5.00 Question 9 Correct 2.00 points out of 2.00: An enterprise architecture can be used to develop the following (check as many as apply): Select one or more: a. 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. In addition to that model, a supporting model is also included highlighting the traceability of Privacy and Technical Security Requirements to Business Process Security and Privacy Considerations: tracing privacy requirements models to privacy considerations of target business processes. a series of events to get something done View Feedback 1 / 1 point Which of the following is the most important part of an IT infrastructure? As shown in Figure 1-16, the enterprise edge module consists … Ensuring that their business results are consistent with the business services offered, business process visions, and supporting high level process designs. The ETS summarizes the current state of the current production environment, documents challenges and goals for the IRS by business, technical or service domain, includes the defined portfolio of programs and projects for achieving the transition. This model also indicates the FIPS 199 security category of Taxpayer data and Personally Identifiable Information (PII). All ESM functions must be closely integrated with each other, provide for extensibility, scalability, and secure operation, and afford extensive multi-platform management capability.

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