APPLICATIONAPPLICATION

SOFTWARESOFTWARE

Application ProgramsApplication Programs

Unlike the operating system that runs the computer, application software is designed to help people perform a certain type of work.

Give an example of an application software.

Example of Application softwareExample of Application software

Categories of Application SoftwareCategories of Application Software

• General purpose• Custom written software

• Specialized software packages

• Customization of general purpose software packages

General Purpose software General Purpose software questionsquestions

• What is the purpose of a general purpose software?

• Give an example of a General purpose software

• State the job where a general purpose software would be used

General purposeGeneral purposeGeneral purpose software would be

anything that aids in allowing you to accomplish simple computer related tasks. For example: word processing software, spreadsheet software. General purpose software packages are used by a large number of people in a variety of jobs and personal situations, e.g.:

Example of General purpose Example of General purpose softwaresoftware

VLC - Media Player

Examples of General PurposeExamples of General Purpose

• Word processing

• Spreadsheet

• Database management

• Graphic presentation

• Communication

General Purpose software for Inventory System

Custom written softwareCustom written software

• This is software that has been designed or created by a programmer to meet the unique need of a user or organization.

Custom written software Custom written software questionsquestions

• What is the purpose of a custom written software?

• Give an example of a custom written software

• State the job where a custom written software would be used

• State some advantages of a custom written software

Advantages of Custom Written SoftwareAdvantages of Custom Written Software

• The software meets the need of the user specifically

• The software can grow with the company• Business owners can relieve the stress

placed on over burdened employees and save money from hiring additional staff.

State some disadvantages of custom writtn

Example of Custom Software

(I-SITEAuto) Package that manages auto dealer company online

Disadvantages of Custom Written Disadvantages of Custom Written SoftwareSoftware

• Expectations can change midstream when developing custom written software, making a realistic budget difficult to project. As a result, businesses often run out of money before the project is completed.

• An experienced software team is needed. Acquiring the right team can be costly. If the people who are trained to use the program resign then it will be some time before new persons are trained, slowing down the business functions

Specialized Software packagesSpecialized Software packages

• What are specialized software packages?

Give an example of specialized software packages

• State where a specialized software package would be used.

• Specialized software falls into two categories, what are they?

Specialised Software PackagesSpecialised Software Packages

Specialised software packages are written for a specific discipline. An example of such packages is expert systems. An expert system is a type of computer application program that makes decisions or solves problems in particular fields, such as banking or architecture, by using knowledge and analytical rules defined by experts in the field. For example, a doctor could employ an expert system that asks a patient a series of questions and then make a diagnosis.

The software fall into two main The software fall into two main categories:categories:

• Business Application Programs – these are programs that perform the information processing tasks of important business functions or industry requirements.

• Scientific Application Programs – these are programs that perform information processing tasks for the natural, physical, social and behavioural sciences.

Example of Specialized Software

Weather mapping system

Customization of General Customization of General Purpose Software PackagesPurpose Software PackagesImagine buying an outfit in a department

store that you like but it is not exactly your size. What do you do? Find a tailor or fashion designer who can adjust it to your size. Similarly, if you find general-purpose software in a software house that you like, but it needs some adjustment to meet your specific need, you can get a programmer to modify the program to meet your specific need.

Customization of General Customization of General Purpose Cont’dPurpose Cont’d

A customised general-purpose software package is a generalised software package that has been tailored to meet a user or firm’s specific need.

What are some of the areas on a software that can be customized?

Areas of the software that can be Areas of the software that can be customized include:customized include:

• Screen colour

• Page size and arrangement on the desktop

• Navigation to available menus

Example of Customized Software

Plastic surgery software that shows how the patients features will look after surgery.

Class ActivityClass Activity1. State one difference between a general-

purpose software package and a specialized software package.

2. List the “Big Five” of general purpose software.

3. What are the two categories of the company software? Define them

Class DiscussionClass Discussion

1. What are the four (4) types of application software?

2. What is the difference between a custom written software and customization of general-purpose software?