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53 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Business intelligence systems
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Info systems that process operational and other data to analyze past performance and to make predictions.
Project management Problem solving Deciding Informing |
BIS
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Data requisition
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Process of obtaining, cleaning, organizing, relating and cataloging source data.
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1st step in BI process
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Push publishing
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Delivers business intelligence to users without any request from the users. Results are delivered according to a schedule or as result of an event.
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2nd step in BI process
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Pull publishing
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Requires the user to request BI results.
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2nd step of BI process
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Data warehouse
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A facility for managing an organization's BI data.
Obtains data, cleanse data, organize and relate data, catalog data. |
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Dirty data
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Problematic data
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B=gender
213=age |
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Granularity
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The level of detail represented by the data.
Too coarse: too many attributes and data points Too fine: not enough money |
Fine / coarse
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Curse of dimensionality
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The more attributes there are, the heavier it is to build a model that fits the sample data, but it's worthless as a predictor.
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Data mart
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A collection of data, addresses the needs of a particular department.
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Smaller than data warehouse
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Reporting analysis
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The process of sorting, grouping, summing, filtering and formatting structured data.
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Goal: create info about past performance
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Structured data
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Data in rows and columns.
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Ex. Tables, spreadsheets
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Exception reports
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Reports produced when something out of predefined bounds occurs.
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Dow jones falls
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Data mining
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Application of statistical techniques to find patterns and relationships among data for classification and prediction.
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Goal: classify and predict
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Cluster analysis
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Unsupervised data technique, statistical techniques identify groups of entities that have similar characteristics.
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Find groups of similar customers from orders and demographic
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Supervised data mining
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Data miners develop a model prior to the analysis and apply statistical techniques to data to estimate parameters of the model
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Cell phone usage= age x months of cell account
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Dynamic reports
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BI documents that are updated at the time of request. Requires access to database.
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Sales report
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Systems development
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Systems analysis and design.
Hardware Software Data Procedures People |
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Changes in requirements
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The bigger the system and longer the project, the more requirements change.
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Brook's law
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Adding more people to a late project makes a project later
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System development life cycle
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Used to develop information systems.
5 phase process: System definition Requirements analysis Component design Implementation Maintenance |
SDLC
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System definition
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Use managements statement of the system needs in order to begin to define the new system.
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1st phase of SDLC
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Organizational feasibility
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Whether the new system fits within the organization's customs, culture, character or legal requirements
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System analysts
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IT professionals who understand business and technology.
Active in system development |
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Requirements analysis
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Conduct user interviews
Evaluate existing systems Determine web pages Identify new app features Consider security Create data model Consider 5 components |
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Implementation
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Build system components
Conduct unit tests Integrate components Conduct tests Convert to new systems |
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Test plan
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Sequences of actions that users will take when using new system. Normal & incorrect
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Beta testing
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Process of allowing future system users to try out new system on their own
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System conversion
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Changing old system to new
4 ways: pilot, phased, parallel, plunge |
4 Ps
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Pilot installation
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Implements entire system on a limited portion of the business
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Parallel installation
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Runs parallel with old system until new is fully operational
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Patch
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A group of files for high priority failures that can be applied to existing copies of a product
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Service packs
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Bundles of files of low priority problems
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Pretexting
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When someone deceives by pretending to be someone else to obtain personal data.
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Phising
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Obtaining unauthorized data that uses Pretexting via email
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Spam
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Email spoofing
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Pretends to be legit company sending emails requesting data
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Phishing
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Drive by sniffers
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Takes computers with wireless connections through an area and search for unprotected wireless networks.
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Spyware adware
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Hacking
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Breaking into computers, servers or networks to steal data such as customer lists or inventory.
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Denial of service
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Human error in following procedures or a lack of procedures
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Intrusion detection system
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Computer program that senses when another computer is attempting to scan the disk to access computers.
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Ids
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Smart card
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A plastic card similar to credit care, but has microchip to hold data.
Required to enter pin |
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Biometric authentication
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Uses personal characteristics such as finger prints, facial features, and retinal scans.
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Packet filtering firewall
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Examines each part of a message and determines whether to let part pass by examining source address.
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Encryption
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Transforming clear text into coded
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Malware
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Viruses, worms, Trojan horses, spyware and adware.
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Viruses
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Comp program replicates itself
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Trojan horse
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Masquerade as useful programs or files
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Worm
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Virus that propagates using internet
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Spyware
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Programs installed without permission or knowledge
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Adware
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Watches user activity and produce pop ups
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Key escrow
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A control where a trusted party is given a copy of key used to encrypt data
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Password management
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Changing pw given, constantly, or making two
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Security management
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Log analysis, security testing and investigating and learning from security incidents.
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Incident response and plan
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Have a plan
Centralized reporting Specific responses Speed Prep pays Don't make it worse Practice |
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