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BIG ICT

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sonaluco's version from 2017-05-16 07:28

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dataraw facts or observations that have been measured or collected but not yet analysed or processed. In this form they still have little to no value.
informationInformation is data that have been processed for a purpose. Production of information involves collecting and transforming data with the purpose of placing it in a meaningful context. There are different ways to transform data into information and these are called data processes or transformation processes.
KnowledgeKnowledge can be described as a person’s unique abilities combined with the information he or she possesses.
Information qualityTime (timeliness, frequency, time period), content (accuracy, relevance, scope), form (clarity, detail, order), other (confidence in source, reliability, appropriateness)
Tangible valueinformation that can be measured directly and usually in terms of financial value.
Intangible valueis impossible or difficult to measure even though it is certainly beneficial to the owner.
Explicit knowledgeis knowledge, that can be easily captured and is stored within documents and forms, for example users manuals.
Tacit knowledgeis the undocumented, intuitive knowledge that is stored in the human mind, for example the knowledge of riding a bike or how to act in social situations.
business information systems partsUsers, Data, Network, Software, Hardware and business processes
levels of decision makingOperational, tactical, strategic
decision typesstructured, unstructured
SAP HanaSAP Hana is SAP SE’s latest real-time data platform, which enables analysis of large amounts of data in real-time. SAP Hana does this by having the data stored in-memory, instead of a database or secondary storage. This enables faster handling of requests and makes real-time analysis possible, even when business is happening simultaneously. In-memory technology also enables the embedding of analytics in the applications themselves. Since the data is in-memory, even complex calculations, functions and data-intensive operations don’t require the movement between the application itself and the database.
Working with SAP ERP systemClient=Presentation layer, Application Server=Application/Business Logic Layer, Database Server=Database Layer
ClientFront-end (PC/Laptop, mobile), needs connection to back-end (WiFi, 3G, 4G, LAN, WAN) Requirements: Memory, display, storage
ServerBack-end, requirements: processor capacity, memory capacity, storage
SAP ERP3-tier (client, application, database)
Basic computer architectureCPU or processor, Memory, Input/Output
ProcessorThe workhorse of the system, component that executes a program
MemoryPassive component that only stores datat until it is requested by another part of the system
System softwaredesigned to operate the hardware and give a platform for application software, i.e. Operatign system software - Windows, macOS, Linux. Network software etc
Application softwarecomputer software designed to help users perform singular or multiple related tasks, i.e. enterprise software, accounting software, office suites, graphics software, media players..
Cross-industry application softwarefor example CRM, ERP HR, Accounting - software that can be used in all fields of business
Vertical market application softwareBusiness specific software, i.e. software designed specifically for healthcare, restaurant, hotel industries etc.
Back-end softwareCross-industry application software, Vertical market application software, Operating system software
Front-end softwareGeneral business productivity application software, Home use applications, utility software, operating system software
Business Intelligence (BI)Business Intelligence (BI) comprises the set of strategies, processes, applications, data, technologies and technical architectures which are used by enterprises to support the collection, data analysis, presentation and dissemination of business information.
IP Addressis an identifier assigned to each computer and other device (e.g., printer, router, mobile device, etc.) connected to a TCP/IP network that is used to locate and identify the node in communications with other nodes on the network.
MAC addressA media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment.
VPNA virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
SaaSSoftware as a service is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted. SaaS is typically accessed by users using a thin client via a web browser, for example Google apps.
IaaSInfrastructure as a service refers to online services that abstract the user from the details of infrastructure like physical computing resources, location, data partitioning, scaling, security, backup etc
PaaSPlatform as a service (PaaS) is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.
VirtualizationVirtualization uses software to simulate the existence of hardware and create a virtual computer system. Doing this allows businesses to run more than one virtual system – and multiple operating systems and applications -- on a single server. This can provide economies of scale and greater efficiency.
Cloud computingis a type of Internet-based computing that provides shared computer processing resources and data to computers and other devices on demand.
EDIElectronic data interchange (EDI) is the computer-to-computer exchange of business documents between companies.
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