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systems > ICT2621 CH 1 STRUCTURED SYSTEM ANALYSIS AND DESIGN > Flashcards

ICT2621 CH 1 STRUCTURED SYSTEM ANALYSIS AND DESIGN Flashcards

chapter 1

1
Q

agile methods

A

systems development method, that attempts to develop a system incrementally by building a series of prototypes and constantly adjusting them to user requirements. Related to adaptive methods.

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2
Q

APP

A

SOFTWARE APPLICATION THAT RUNS ON MOBILE DEVICE ,SMARTPHONE OR TABLET

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3
Q

APPLICATION LIFECYCLE MANAGMENT (ALM)

A

-activities that cover the entire SDLC
-including , development, testing and deployment and management of Software applications

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4
Q

Application software

A

software program i.e. email ,spreadsheets ,graphics packages ,word processors
-employees use in typical office

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5
Q

artificial intelligence

A

The attempt to recreate natural intelligence through software in machines.

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6
Q

big data

A

large datasets (eg petabites) requiring non traditional methods(NoSQL) to deal with them. referred to by three terms: volume, variety, and velocity.

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7
Q

define 3 v’s of big data

A

-Velocity is the measure of how fast the data is coming in. Facebook has to handle a tsunami of photographs every day. It has to ingest it all, process it, file it, and somehow, later, be able to retrieve it.
- Volume -quantities of data
-variety- photographs, sensor data, tweets, encrypted packets,

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8
Q

business model

A

A graphical representation of business functions that consist of business processes, such as sales, accounting and purchasing.

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9
Q

business process

A

a description of specific events, tasks and desired results

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10
Q

business process model (BPM)

A

a Graphical representation of one or more business processes

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11
Q

business process modelling notation (BPMN)

A

a standard set of shapes and symbols used to represent events, processes and workflows in Computer-based modeling tools.

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12
Q

business profile

A

A definition of a company’s overall functions, processes, organization, products, services, customers, suppliers, competitors, constraints and future direction

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13
Q

business rules

A

how a system handles data and produces useful information aka business logic, reflect toe operational requirements of the business eg adding correct sales tax

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14
Q

business support systems

A

provides job related information support to users of all levels.

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15
Q

C.A.S.E tools

A

Computer Aided Systems engineering, powerful software to hep system analyst develops and maintain information systems.
-an overall framework for system development
-supports wide variety of design methods i.e structured analysis etc.

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16
Q

certification

A

credential earned by showing level of knowledge and skill in test.

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17
Q

Class

A

used in object orientated modelling to indicate a collection of similar objects.

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18
Q

data

A

the raw material or basic facts used by I .S.
raw material that an I.S transforms into useful information

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19
Q

data center

A

large concentration of networked computers working together

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20
Q

data flow diagram

A

(DFD)graphical representation of the system showing it stores processes and transforms data into useful information.

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21
Q

deliverable

A

polished final product suitable for its intended use .end products or deliverables often coincide with the completion of each SDLS phase.

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22
Q

electronic data interchange (EDI)

A

process that involves pc to pc transfer of data between companies

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23
Q

empowerment

A

responsibility and accountability throughout all levels of an organization, motivational tool for lower level

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24
Q

enterprise applications

A

companywide application order processing systems, payroll systems and company Communications network

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25
Q

enterprise computing

A

IS that support company wide data management requirements i.e., airline reservations.

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26
Q

enterprise resource planning (ERP)

A

a process that establishes an enterprise-wide strategy for IT resources. ERP defines a specific architecture including standards for data processing ,network and user interface design.

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27
Q

feasability study

A

an initial investigation to clearly identify the nature and scope of the business opportunity or problem, also called preliminary investigation,

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28
Q

groupware

A

programs that run of a network that enable user to share data ,collaborate on projects and work in teams aka workgroup software

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29
Q

horizontal system

A

basic system such as an inventory or payroll package used by a VAriety of companies

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30
Q

inference rules

A

instructions that direct a knowledge management system to identify data patterns and relationships.

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31
Q

information

A

data that has been changed into a useful form of output

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32
Q

information system

A

a combination of :
IT ,people ,data to support business requirements .
5 key components:
hardware,software,data,processes , people

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33
Q

information technology

A

a combination of
hardware ,software ,telecom systems that support business operations ,improve productivity and help managers make decisions.

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34
Q

integrated development environment (IDE)

A

app for building other software apps. typically includes a visual code editor, an integrated complier, a debugger, a configuration management system and a test framework.

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35
Q

iterative

A

an adaptive method typically used a spiral development model which builds on a series of iterations (the repetition of a process)

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36
Q

knowledge base

A

popular system development technique that uses a group of users and IT professionals who gather info discuss business needs and define new system requirements.

37
Q

machine learning

A

app pc science and AI that uses automated approaches.to pattern recognition and predictive analytics bases on large datasets

38
Q

management information system (MIS)

A

Computer based information system used in business planning, control, decision making, and problem solving…

39
Q

mission critical system

A

An IS that is vital to companies operations.

40
Q

model based systems engineering (MBSE)

A

an approach to systems engineering that relies on domain models, rather than traditional documents to design large scale systems and convey information between engineers.

41
Q

modelling

A

a process that produces a graphical representation of a concept or process that systems developers can analyze test and modify

42
Q

moore law

A

a predication that computing power would double every 18 - 24 months due to increased miniaturization of electronic components.

43
Q

NoSql databases

A

database system that uses a flat ,nontabular (nonrelational) structure to store and process large scale unstructured datasets.

44
Q

object

A

in object orientated analysis or programming an object represents a real person place event or transaction

45
Q

Object-oriented (o-o)analysis

A

-The act of understanding an information system by identifying things called objects.
-An object represents a real person place event transaction.
-sees the system from the viewpoint of the objects themselves as they function and interact with the system.

46
Q

process

A

Procedure or task, logical rules of a system that are applied to transform data into meaningful information.

47
Q

other names for CASE tools

A

-Application lifecycle management (ALM)
-Product lifecycle management (PLM)
-Intergrated development environment (IDE)
-Computer aided software engineering
-Computer aided system engineering

48
Q

examples of CASE tools

A

-Polaron, an ALM (application lifecycle management solution) from siemens
-Microsoft Visual studio, a leading IDE.
-Cameo Systems Modeler, a leading MBSE (model-based system engineering)

49
Q

product oriented

A

companies that manufacture computers routers microchips

50
Q

project management

A

The process of planning, scheduling, monitoring, controlling, and reporting upon
the development of information system

51
Q

Properties

A

In object orientated analysis characteristics that objects inherit from there class or possess on their own

52
Q

prototype

A

an early rapidly constructed working version of the proposed information system

53
Q

What does RFID stand for and definition?

A

-radio frequency identification.
-technology that uses high frequency radio waves to track physical objects

54
Q

requirements engineering

A

-used in the systems planning phase of SDLC
-Involves various fact-finding techniques interviews, surveys observations, sampling,
-used to describe the current system and identify the requirements for new system

55
Q

scalable

A

the ability of a system to expand to meet new business requirements and volumes.

56
Q

service oriented

A

company that offers information or sells goods produced by others.

57
Q

software

A

a program run by computers for a specific function or task

58
Q

spiral model

A

a development model with a series of iterations or revisions based on user feedback.

59
Q

stakeholder

A

anyone who is affected by the company’s performance i.e. customers, employees’ stockholders & community.

60
Q

strategic plans

A

the long-range plans that define the corporate mission and goals, typically defined by top management with input from all levels.

61
Q

structured analysis

A

a traditional systems development technique that uses phases to
plan, analyze, design, implement and support, an I.S
-processes and data are treated as separate components

62
Q

supply chain

A

refers to all the companies who provide materials, services, and functions needed to provide a product to a customer.

63
Q

Supply chain management. (SCM)

A

The coordination, integration, management of materials information and finances as they move from suppliers to customers both within and between companies. In a totally integrated supply chain, triggered by an order.

64
Q

system

A

a set of related components that produces specific results.

65
Q

system design specification

A

document that presents the complete design for the new I.S. along with the detailed costs staffing and scheduling for completing the next SDLC phase, systems implementation
-AKA technical /detailed design specification

66
Q

system requirement document

A

requirements for the new system describes the alternatives that were considered and makes a specific recommendation to management .it is the end product of the systems analysis phase.

67
Q

system software

A

programs that control the computer including the operating system,device drivers that communicate with hardware and low levels utilities.
controls the flow of data, provides data security, and manages network operations.

68
Q

system analysis and design

A

the process of developing I.S that effectively use:
hardware, software data processes and people to support the company’s business objectives.

69
Q

system analysis phase

A

the second SDLC phase. the purpose of this is to build a logical model of the new system.

70
Q

system analyst

A

a person who plans analyzes and implements I.S
They may work infernally within I.T department or be hired by a company as an independent consultant.

71
Q

system design phase

A

-Third SDLC phase
-the purpose of systems design is to create a blueprint for
the new system that will satisfy all documented
requirements, whether the system is being developed in
hose or purchased as a package.

72
Q

Systems Development life cycle (SDLC)

A

Activities and functions that systems developers typically perform regardless of how those activities and functions fit into particular methodology.
5 PHASES
1.systems planning 2. system analysis 3. system design 4. systems implementation 5. system support and security

73
Q

Systems Development life cycle (SDLC) 5 phases

A

5 PHASES
1.systems planning 2. system analysis 3. system design 4. systems implementation 5. system support and security

74
Q

systems implementation phase

A

fourth phase of SDLC, the new system is constructed programs are written tested and documented and the system installed.

75
Q

systems planning phase

A

The first phase of SDLC. system project gets started. The project proposal is evaluated to determine its feasibility. the project management plan is formulated with the help of C.A.S.E tools where appropriate.

76
Q

systems request

A

A formal request to the IT department that describes problem or desired changes in an I.S or business process.
It might propose enhancement for and existing system, the correction of problems or the development of an entirely new system.

77
Q

system support and security phase

A

Phase 5 SDLC, the IT staff maintains enhances and protects the system.

78
Q

technical support

A

Supports the wide variety of IT systems and users.
6 main functions:
1.application development
2. system support
3. user support
4. database administration,
5. network admin
6.web support. all often overlap.

79
Q

transaction processing system (TP)

A

Operational system used to process day to day business transactions i.e. customer billing.

80
Q

user productivity systems

A

apps that provide all employees tools to improve job performance e.g. email, word, processing, graphics intranets.

81
Q

users

A

stakeholders inside and out the company who will interact with the system.

82
Q

vertical system

A

system designed to meet the unique requirements of a specific business or industry i.e web based retailer or auto supply store

83
Q

waterfall method

A

the traditional model of software development. a graph that depicts the result of each SDLC phase flowing down into the next phase

84
Q

other task of system analyst

A

test hardware ,software design input screens train suers plan ecommerce website .
manage it projects meetings mems reports etc.

85
Q

examples of system software

A

-operating system
-security software protects the pc from intruders.
-device drivers that communicate with hardware such as printers
-utility programs that handle specific tasks such as data backup and disk management

86
Q

company vs individual scale enterprise systems

A

company-order processing systems, payroll systems, company communication networks.
individual -spreadsheets, presentation software, database management systems

87
Q

what apps can be used for creating bpmn models ?

A

Microsoft Visio
online diagramming tools such as draw.io
-lucid charts

88
Q
A

systems (7 decks)

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