UTA INSY 2303 EXAM 3 REVIEW questions with verified solutions already graded a+

Critical Path The sequence of stages determining the minimum time needed for an operation especially when analyzed on a computer for a large organization Colocation Center Centers that dedicate information systems which several corporations lease space and equipment Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Data Center a specialized facility designed to hold and protect computer systems and data Application Development Tool Software that assists in the creation of new software ERP Enterprise Resource Planning; it is a suite of software modules that integrate major business activities SDLC/Phases of the SDLC An information system progresses through several phases as it is developed, used, and retired order of phases Analysis > Design > Implementation > Maintenance > Planning main purpose System Requirements Report > Application Specifications > Working System > Project Development Plan Feature Creep A tendency for product or project requirements to increase during development beyond those originally foreseen JAD Joint Application Design, A process used in the life cycle area of the dynamic systems development method to collect business requirements while developing new information systems for a company BI A technology driven process for analyzing data and presenting actionable information to help executives, managers and other corporate end users make informed business decisions Object-Oriented Methodology treats an information system as a collection of objects that interact to accomplish tasks UML Unified Modeling Language, The current standard for object-oriented documentation class diagram provides the name of each object, a list of each object's attributes, a list of methods, and an indication of the associations between objects use case diagram documents the users of an information system and the functions they perform Sequence Diagram depicts the detailed sequence of interactions that take place for a use case System Conversion the process of deactivating an old information system and activating a new one Unit Testing Each application module is completed undergoes this to ensure that it operates reliably and correctly Integration Testing Performed to ensure that the modules operate together correctly System Testing Ensures that all the hardware and software components work together MRP Material Requirements Planning, A production planning, scheduling, and inventory control system used to manage manufacturing processes. Data Flow Diagram The core documentation tool for project teams using structured methodology, graphically illustrates how data moves through an information system Success Factors They also serve as an evaluation checklist at the end of a project Gantt Chart shows the duration of development tasks as they occur over time WBS - Work breakdown structure Work breakdown structure, breaks a complete task into a series of subtasks PERT -Program evaluation and review technique Program evaluation and review technique, used for analyzing the time needed to complete each project task JIT - Just-In-Time manufacturing A methodology aimed primarily at reducing times within production system as well as response times from suppliers and to customers Horizontal Market Designed for common elements of many businesses Vertical Market Designed for a specific industry or enterprise Turnkey System A computer system that has been customized for a particular application B2B and B2G Websites such as FedBid, Oracle, & Ingram sell goods and services to other businesses or to the government B2C (business-to-consumer) Online storefronts such as Zappos, Amazon & Dell offer merchandise and services to consumers C2C (consumer-to-consumer) Consumers sell to each other at popular auction and list sites, such as eBay & TaoBao. Fuzzy Logic An expert system can deal with this type of data by working with confidence levels. These systems are designed to deal with data that is imprecise or problematic Expert System A computer system designed to analyze data and produce a recommendation, diagnosis, or decision based on a set of facts and rules TPS (Transaction Processing System) Transaction Processing System, provides a way to collect, process, store, display, modify or cancel transactions DSS (decision support system) Decision Support System helps people make decisions by directly manipulating data, accessing data from external sources, generating statistical projections, and creating data models of various scenarios Batch Processing The processing of previously collected jobs in a si OLTP (online transaction processing) Online Transaction Processing System, a real-time method in which each transaction is processed as it is entered Exception Report contains information that is outside of normal or acceptable ranges summary report combines information that is outside of normal or acceptable ranges Ad Hoc Report A report that is created on the fly, displaying information in a table or a chart that is the result of a question that has not already been codified in a production report. Database/Database Models The underlying structure of a database hierarchical one-to-one and one-to-many relationships which are linked in a hierarchical structure network Conceived as a flexible way of representing objects and their relationships. Relational stores data in a collection of related tables O-O stores data as objects, which can be grouped into classes and defined by attributes and methods DBMS (Database Management System) software that manages data stored in a database Data Independence Entails separating data from the programs that manipulate it Data Redundancy The amount of data that is duplicated in a database Normalization helps database designers create a database structure that minimizes storage space and increases processing efficiency Operational Database Used to collect, modify, and maintain data on a daily basis Data Warehouse A large store of data accumulated from a wide range of sources within a company and used to guide management decisions Big Data The huge collections of data that are difficult to process, analyze, and manage using conventional database tools Hadoop An open source distributed processing framework that manages data processing and storage for big data applications running in clustered systems MapReduce A programming model and an associated implementation for processing and generating big data sets with a parallel, distributed algorithm on a cluster