B4 Flashcards
5 Components of an Information System
- hardware
- software
- people
- network
- data
Data vs. Information
- data is raw facts
* information is processed data that is useful for decision making
Four Primary Roles in Business Operations
- process detailed data
- provide information used for making daily decisions
- provide information for developing business strategies
- take orders from customers
What is the first step in a business processing transaction?
capture the data
Data Capture Techniques
*manual entries vs. source data automation
Data Accuracy =
GIGO
What is the Accounting Information System?
- it is first and foremost a Management Information System
* it creates an audit trail for accounting transactions
How are entries recorded?
*they are first recorded onto the general journal and then are summarized on the various ledgers
Coding Types
- Sequence Code (101, 102, 103)
- Block Codes (1xx, 2xx, etc.)
- Group Codes (each number stands for something)
Entity
subject of the stored information
Attributes
specific item of interest for each entity
Field
contains a single piece of information (attribute) of the entity
Record
all attributes about a single instance of an entity
Data Value
contents of fields
File
records are grouped into files
Master File
cumulative information and information that is relatively permanent
Transaction File
similar to a journal, the transaction file stores individual transactions
Database
files that are INTERRELATED AND COORDINATED
Data Processing
Addition - new record
Updating - revisions to a master file
Deletion - removal of records from a database
Methods for Data Processing
- batch processing
2. online real-time processing (OLRT)
Information Output Types
- Documents (checks, purchase orders, etc.)
- Reports (internal or external periodicals)
- Query (request for specific data
Benefit of Batch Processing
*can compare manual and computer-generated batch control total
Centralized vs. Decentralized Processing
- centralized has enhanced data security and consistent processing
- bottlenecks, high costs, reduction in local accountability, increased vulnerability
Periodic Scheduled Report
*made available on a regular basis to end users of the system
Exception Reports
*produced when a specific condition or exception occurs
Demand Reports
*available on demand when requested
Ad Hoc Reports
*one that does not currently exist but that can be created on demand, without having to get a software developer or programmer involved
Query
*a set of criteria that the end user can send to the system to extract all transactions or other information that meet these criteria
Push Report
*pushed to a computer when a specific action takes place
Dashboard Reports
*presents summary information necessary for management action (visual quick references)
XBRL
*XBRL tags define the data
Should technology decisions be an input or an output in the strategy process
INPUT
What types of events should be identified during the enterprise risk management process?
risks AND OPPORTUNITIES
Categories of Business Information Systems
- Transaction Processing Systems
- Management Information Systems (MIS)
- Decision Support Systems (DSS)
- Executive Information Systems (EIS)
Transaction Processing Systems
*process and record the routine daily transactions necessary to conduct business
Management Information Systems
*provides users predefined reports that support effective business decisions
Decision Support Systems
*extension of an MIS that provides INTERACTIVE tools to support decision making (aka EXPERT SYSTEM)
Executive Information Systems
- provide senior executives with immediate and easy access to internal and external information to assist in strategic decision making
- high level
*INTERNAL AND EXTERNAL
Systems Development Life Cycle
- Systems Analysis
- Conceptual Design
- Physical Design (look at outputs first, then design the inputs; DEFINE DATA ELEMENTS)
- Implementation and Conversion
- Training
- Testing
- Operations and Maintenance