Comp Sci EOY DP1

system analyst

a person who uses analysis and design techniques to solve business problems using information technology

ways for a system analyst to find data

observation, inspecting documents, questionairres, interviews

problems with a system

inefficient, organisational change, law based stipulation

change managment

raising and recording of changes, assessing the impact, cost, benefit and risk of proposed changes, developing business justification and obtaining approval, managing and coordinating change implementation, monitoring and reporting on implementation, reviewing and closing change requests.

incompatibility

the inability of different systems or components to work together due to mismatched standards, formats, or protocols.

legacy system

a outdated system using old methods, technologies or software

buisness merger

the combining process of two businesses

Software as a Service (SaaS)

a contemporary delivery method that allow software and data to be hosted on managed centrally on a remote data center that is not owned by the user of the software itself

parallel installation

running the old system and new system simultaneously for a period of time before taking the old system out of service.

pilot conversion

Pilot conversion is a testing phase where a new system or process is implemented on a small scale within a limited segment of an

phased conversion

method of implementing a new system in which components or features are introduced in stages, allowing for a smoother transition and minimizing disruption to the organization.

direct changeover

Direct changeover is a system implementation method where the old system is completely replaced by the new system at a specific point in time, with no overlap between the two.

data migration

the process of transferring data between storage types, formats, or computer systems. It is a key consideration for any system implementation, upgrade, or consolidation

debugging

a cyclic activty done during the production of a system to locate and correct errors and involves execution and

final module testing/user acceptance testing

done to demonstrate correctness to the user and to check if the system requirements are met

unit testing

a software testing technique where individual units or components of a software application are tested in isolation to verify that each unit functions correctly.

integration testing

Integration testing is a phase in software testing where individual units or components are combined and tested as a group to verify that they work together as intended.

system testing

final inhouse testing stage involving testing the entire system ensuring all units operate coherently and function as intended before demonstrating to the client or user

alpha test

first phase of testing in a software development process, consisting of unit testing, integration testing, and system testing.

beta test

final stage of testing; applications are subjected to real world testing by the intended audience for the software. The experiences of the early users are forwarded back to the developers who make final changes before releasing the software commercially

test automation

test automation is the use of special software (separate from the software being tested) to control the execution of tests, the comparison of actual outcomes with predicted outcomes.

user documentation

refers to the documentation for a product or service provided to the end users. The user documentation is designed to assist end users to use the product or service

help files

Files supplied together with the system, that can usually be called up with a button in the system.

online support

Special web service hosted by the system's developer to provide user documentation.

printed manuals

Manuals printed on paper and supplied together with the System.

user training

Training staff in using a new system is very important as productivity greatly depend on how familiar users are with a system.

self instruction

users reading a manual or watching a tutorial, or randomly doing something in the system to figure out how it works. This type of training is only suitable for experienced computer users or when the system is very simple to use

formal classes

users sitting in a classroom listening to an instructor who shows and explains how to use the system. This type of training is useful to train large amounts of staff as it is effective and relatively cheap, but if the size of the classes is too big, there is little time to deal with individual problems and questions.

remote/online training

an instructor training a single user either by being in the same room or by some kind of remote connection (Skype, chat). This is the most effective way of training as training can be suited to user's needs and abilities, but is very expensive compared to other types of training.

causes of data loss

accidental deletion; malware; physical damage; natural disaster; malicious activity; espionage

consequences of data loss

hospital medical records leading to a delay in emergency treatment; flights being changed anc cancelled unkowingly affecting the customers holiday and travel plans

data loss prevention

firewall; antivirus; cloud storage; regular backups; redundancy systems

patches

update applications by fixing known bugs and vulnerabilities

updates

improve a product in a minor way by adding new functionalities or fixing known bugs.

releases

working version of software applications that have already gone through alpha and beta software testing

automatic updates

updates that automatically download of the internet and are installed by a system when released by a system provider

manual updates

manually informing every user of the new update and advising them with instructions on how to install it onto their system

hardware

physical components of a system; storage, acutators, etc

software

the collection of progrmmes that control the functionality of a system

peripheral

the devices attached to the computer that allow it to interact with its environment and exchange information

netowrk

a group of computers connected together in some way to share resources

human resources

the humans behing the succesful functioning of a system

client (computer)

a computer accessing resources hosted by another computer, the server

server

a computer hosting resources to be shared across the network

email server

A mail server is the computerized equivalent of your friendly neighborhood mailman. Every email that is sent passes through a series of mail servers along its way to its intended recipient

DNS Server

Domain name server

SMTP

simple mail transfer protocol - outgoing mail server

POP3

Post office protocol - Incoming mail server

IMAP

Internet Message Access Protocol - incoming mail server

Router

Firewall

ethical issues of digitalisation

loss of jobs; outsourcing for cheaper labour; security and privacy concerns; cyber bullying; identity theft

techniques to find a solution

lit reviews; organisational capabilities; examining current systems