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Definition
Allows users to send commands to a system.
-Process control Screen (Dialog Screen) is part of User Interface and enables a user to initiate or control system actions |
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Term
| Human Computer Interaction (HCI) |
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Definition
| User Interface is based on HCI. HCI describes the RElationship between computers and people who use them to perform their jobs. HCI applies from PC Desktops to global networks. Is predecessor to GUI |
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Definition
- Users-Approved storyboards and sketches
-transparent Interface
-Easy to learn and use
-Uses menu trees
-Enhances user productivity
Easy for User to access Help or Correct errors
-Minimize input data problem
-provide feedback to user
-Attractive layout & design
-Familiar terms and images |
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| How an Interface can be made attractive and easy to use |
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| DEscribes how people work, learn, and interact with computers |
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Definition
| Provides the Operational Structure required to carry out the design objectives |
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| Templates or Patterns that make it easier for Users to enter data. Use data validation rules, which limit acceptable values that users can enter. |
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| located at top of screen & displays the Main Menu Options |
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Radio Button
(Option Button) |
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Definition
| Represents a group of options; User can only select one option at a tie. The selected option contains a black dot |
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Definition
| Contains icons and/or buttons that represent Shortcuts for executing common Commands |
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Definition
| Allows user to enter information about a task that the system will perform |
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Definition
| displays messages & provides a place for a user to enter data |
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Definition
| Used to represent on/off status; clicking toggle button switches to the other status |
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Definition
| Displays a list of choices that the user can select. If the list doesn't fit in the box, a Scroll Bar allows the user to move through the available choices |
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Definition
| Displays current selection; when the user clicks the arrow, a list of all the available choices are displayed. |
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Definition
| Initiates an action, such as printing a form or request. |
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Definition
| Used to select one or more choices from a group. Selected options are have a checkmark or X. |
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Definition
| Allows the User to select a date that the system will use as a field. |
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Term
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Definition
Printed out documents that are later entered back into the same or other information.
-Ex. Phone & Utility bill, with a returnable portion for the company data entry |
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Term
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Definition
| Problems can occur if updates are not applied in every file; changing data in only one system will cause inconsistent data and result in incorrect information in the second system. |
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Definition
Set of rules that avoid data inconsistency and quality problems. Seen in Relational Database
-Type of Validity Check |
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Definition
| When data common to 2 or more Information Systems is stored in several places; Requires too much storage space & maintaining and updating data in several places is expensive |
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Term
Database Management System
(DBMS) |
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Definition
| Collection of Tools, Features, and Interfaces that enables Users to Add, Update, Manage, Access, and Analyze the content of a set of data. User advantages: timely, interactive, and flexible data access |
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Definition
| Means a system can be expanded, modified, or downsized to rapidly meet the changing business needs of a business enterprise. |
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Definition
| If one Database can be used in conjunction with, or merged with another database, they are compatible. |
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Term
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Definition
| Describes the numeric relationship between 2 entities and shows how instances of one entity relate to instances of another entity. |
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Definition
Allows a User to specify a task without specifying how the task will be accomplished.
-Some query languages use natural language commands that resemble ordinary English sentences |
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Hypertext Markup Language
(HTML) |
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Definition
| Language used to write Web Pages for the Internet |
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Definition
| Users provide an example of the data requested |
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Term
Structured Query Language
(SQL) |
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Definition
| Programming/Query Language that allows PC Users to communicate with Servers and Mainframe computers |
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Term
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Definition
During System Design Phase, Key Fields are used to organize, access, and maintain data structure.
- 4 types of key fields: Primary, Foreign, Candidate, & Secondary |
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Term
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Definition
| Field or combination of fields that uniquely and minimally identifies a particular member of an entity. Unique identifiers within a table. |
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Definition
| A field in one table that must match a Primary key field in another table, in order to establish a relationship between the two tables |
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Definition
| Primary key that consists of a combination of fields; also called a Combination key, Concatenated key, or Multi-Valued key |
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Term
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Definition
| a system design where the Server performs all the processing |
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Term
| Client/Server Architecture |
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Definition
| Systems that divide Processing between 1 or more networked Clients and a central Server. The Clients handle the entire User Interface including data query, data entry, and screen presentation logic.The Server stores the data and provides data access and database management functions. Application logic is divided between the two. |
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Term
Distributed Database Management System
(DDBMS) |
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Definition
Data is stored in more than one location.
-Adv: data stored closer to the Server reduces network traffic and the system is scalable; system is less likely to experience catastrophic failure
-Dis: data securit, since data is stored in more than one location. More complex and difficult to manage |
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Term
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Definition
| An entrance to a multi-functional web site. After entering a portal, a User can navigate to a destination, using various tools and features provided by a portal designer |
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Term
Open Systems Interconnect Model
(OSI) |
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Definition
Describes how data actually moves from an application on one computer to an application on another network computer. The OSI consists of 7 layers
1) Application
2) Presentation
3) Session
4) Transport
5) Network
6) Data Link
7) Physical
(7-1) Please Do Not Throw Sausage Pizza Away |
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Term
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Definition
| A set of standards that govern network data transmission. Also, preset condition used by firewalls to determine whether or not to allow traffic to pass. |
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Transmission Control Protocol/Internet Protocol
(TCP/IP) |
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Definition
| A popular networking protocol; TCP/IP is the backbone of the internet. Originally developed by the Department of Defense |
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Term
| Software Engineering Institute (SEI) |
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Definition
Primary objective is to find better, stronger, faster, and less expensive methods of software development.
-Designed software development standards called Capability Maturity Model (CMM) and Capability Maturity Model Integration (CMMI) are a large framework called Process Improvment |
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Term
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Definition
| A software development process that stresses solid design, effective structure, accurate documentation, and careful testing. |
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Term
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Definition
| Consists of related program code organized into small units that are easy to understand and maintain; a complex program can have hundreds/thousands of Modules |
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Term
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Definition
| diagrams used tod escribe program logic that represents logical rules and interaction graphically using a series or symbols connects by arrows; used in visualizing modular program designs |
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Definition
Where the systems analyst defines the overall objectives of the system and then breaks them down into subsystems and modules, called partitioning
-Also called Modular Design |
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Term
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Definition
| represents a detailed view of a single use case, shows the classes that participate in the use case, and documents the relationship among the classes |
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Term
| How much effort does IT put into supporting existing systems? |
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Definition
| It could be a lot. Depends on how well the system is designed and how complex the tasks are that are being performed, how often, and by how many people. |
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Term
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Definition
Iclude changing programs, procedures, and documentation to ensure correct system performance; adapting the system to changing requirements and making the system operate more efficiently. Met by:
-Corrective (Fix errors)
-Adaptive (add new capabilities & enhancements)
-Perfective (improves efficiency)
-Preventative (reduces possibility of future failure) |
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Term
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Definition
Costs incurred after the system is implemented and continues while the system is in use.
-System Maintenance
-Supplies
-Equipment Rental
-Annual Software License Fees |
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