Enterprise Architecture Test Solution Manual ( Graded A+)

Enterprise Architecture Test Solution Manual ( Graded A+) Enterprise architecture is made up of three things: - Answers Information architecture Infrastructure architecture Application architecture Information architecture: - Answers identifies where and how important information such as customer records, is maintained and secured. Infrastructure architecture: - Answers Includes the hardware, software and telecommunication equipment that when combined, provides the underlying foundation to support the organisations goals. Application architecture: - Answers determines how applications integrate and relate to each other Information architecture is made up of three sections: - Answers -Data architecture: how data is stored, managed and used in a system -Information architecture: the level of information density given to each level in the business. -Security architecture: the hardware and software put into place to protect data from being lost. Infrastructure architecture must have the 5 following characteristics to be effective: - Answers Flexibility Scalability Reliability Availability Performance Flexibility: - Answers systems must meet all types of business changes. Scalability: - Answers how well a system can adapt to increased demands. Scalability involves capacity planning which determines the future IT infrastructure requirements for new equipment and additional network capacity. This allows the business to grow easily in the future. Reliability: - Answers ensures all systems are functioning correctly and providing accurate information. Reliability also requires accuracy. Availability: - Answers addresses when systems can be accessed by users. High availability refers to a system that is continuously available. Performance: - Answers measures how quickly a system performs a certain process or transaction in terms of efficiency metrics of both speed and throughput. web services vs open systems - Answers Web services and open systems are a big part of application architecture. Application architecture also includes: Client server architectures, Web service architectures, Service oriented architectures, Grid computing architectures, Open systems. Web services: - Answers contain a repertoire of web-based data and procedural resources that use shared protocols and standards permitting different applications to share data and services. There are two parts to web services: - Answers Events: they detect threats and opportunities and alert those who can act on the information. E.g. credit alerts to banks. Services: must appeal to a broad audience and they need to be reusable if they are going to have an impact on productivity. They are valuable business processes. Open systems: - Answers A broad, general term that describes non-proprietary IT hardware and software made available by the standards and procedures by which their products work making it easier to integrate them Open system integration is designed to: - Answers - Allow systems to seamlessly share information. This reduces costs. - Capitalise on enterprise architecture, thus avoiding buying multiple devices. - Eliminate proprietary systems and promote competitive pricing. Transactional Information: - Answers Encompasses all of the information contained within a single business process or unit of work and its primary purpose is to support the performing of daily operational tasks. Organisations use transactional information when performing operational tasks and repetitive decisions such as analysing daily sales reports to determine how much inventory to carry. Examples: purchasing shares, airline reservations, withdrawing money from an ATM. Analytical information: - Answers Encompasses all organisational information and its primary