Computer Studies - Year 10 (3 Years)

8/14/2019 Computer Studies - Year 10 (3 Years)

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Duration (no

ofweeks

)

TopicLearning

ObjectivesLearning Activities

Learning outcome(At the end of the lessons,students will be able to )

ResourcesAssessm

ent

1 week

SourceDocument

Be able todesign aproper sourcedocument.

Discussion: Distribute samples of

source documentsthat are badlydesigned.

Discuss theirweaknesses andsuggestimprovements.

Distribute samples ofthe corrected or

improved sourcedocuments.

Discuss what are thechanges made andthe advantages ofhaving the changesdone.

list factors to be consideredwhen designing a sourcedocument.

design a source document for agiven application

provide reasons for coding data

suggest suitable codes for aparticular data item in a givenapplication.

design on-line form usingcombo boxes, drop-down lists,

etc.

U3: (Pg 24)U10: (Pg 42-44)U8: (Pg 46-47)U13: (Pg 41-44)

U10:(Pg 44,50-52)

2weeks

DataChecking

Be able todifferentiatebetween the

different datacheckingmethods.

Be able toidentify

Discussion:

Consequences of error(GIGO)

Two types of error Differences between

Data Verification andData Validation.

Examples of differentData verification

explain the concept of GIGO(Garbage In Garbage Out)

state two types of error

define the term verification identify the various data

verification method.

define the term validation

identify the various datavalidation method.

U8: (Pg 48-49)U10: (Pg 53-

58)U3: (Pg 25)

U9: (Pg46-48)U10: (Pg

59)

COMPUTER STUDIES SCHEME OF WORK SPN 21

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suitable datacheckingmethods fordifferent dataitems.

methods.

Examples of differentData validationmethods.

Case Study: Studentsto suggest suitable

validation checks fordifferent data items.

Case Study:Calculation of checkdigit - ISBN barcode

suggest suitable validationchecks for different data itemswith reasons provided.

calculate check digit e.g.modulus-11

Duration (no

ofweeks

)

TopicLearning



ResourcesAssessm

ent

1 week

Types ofdata

Be able todifferentiatebetween thedifferent typesof data andprocess of dataconversions.

Discussion:

Give example of Digitaldata and Analoguedata.

Comparison betweenthe graphs of these twotypes of data.

ADC and DAC.

define the terms: digital andanalogue data

describe the function of an ADCand a DAC with examples

define the term soundsynthesizing

state advantages anddisadvantages of analoguedisplay and digital display

U3: (Pg 61)U13: (Pg 27-28,169-170)

U13:(Pg 37Q.1)

1 weekFile accessMethods

Be able tosuggest fileaccessmethods fordifferent typesof storagemedia.

Discussion:

Students to suggest thetype of file accessmethods used forvarious storage media.

differentiate between serialaccess, random access,sequential access and indexedsequential access.

suggest the file accessmethod used in a givenstorage medium

U8: (Pg 50-51)U13: (Pg 85-86)U3: (Pg 28)

U9:(Pg 50-51)


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Fileupdateprocesses

Be able toidentifydifferent fileupdateprocesses.

Case Study:

For a given applicatione.g. a student recordsystem, suggest anoccurrence when arecord would be

inserted, deleted oramended?

differentiate betweeninsertions, deletions andamendments in a file.

provide examples ofinsertions, deletions andamendments for a particularapplication.

U13: (Pg 87) U13:(Pg 91-92)

1

week

FileMaintenance

Be able todifferentiatebetween amaster file anda transactionfile.

Be able toprovide

procedures forbackupmethods .

Discussion:

Case study of a fileused for a particularapplication e.g. apatient master file.Students to suggestpossible changes to thedata.

Where are the updatesstored?

Which file needs to beupdated?

How is the updatescarried out?

How to recover a lostmaster file?

state the purpose of a masterfile and a transaction file

provide an example of amaster file and a transactionfile

provide the reason for sortinga transaction file beforeupdating a master file

define the term mergingbased on the updating process

define the term filegeneration and file dumping.

U8: (Pg 52-53)U13: (Pg 87-89)U3: (Pg 28)

U9:(Pg 52-53)

Duration (no

of

weeks)

TopicLearning

Objectives

Learning ActivitiesLearning outcome

(At the end of the lessons,

students will be able to )

ResourcesAssessm

ent


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2weeks

Database Be able toidentify thedifferent typesof database.

Be able to

describe theuse of fixedand variablelength fields.

Be able tocreate queriesby using logicalconditions.

Task:Students to visit a librarythat uses database.Interview a librarian tofind out more about thedatabase (e.g.

information stored in thedatabase, how is thedatabase searched andupdated).

Group work:Discuss the advantagesand disadvantages offixed and variable lengthfields

describe the advantages ofusing a computerized database

differentiate between the twomain types of databases (flatfile database and relationaldatabase)

discuss the hierarchy of data(Files, Records, Fields,Characters) and data types

define a primary key

differentiate between fixed andvariable length fields

use logical and relationaloperators in queries (e.g. sortascending, sort descending, isequal to (=), is less than (), is not equal

to (), AND, OR, NOT)

U10:(Pg 63-69,283-287)

Homework

1week

BUILDINGADATABASE

Be able tocreate a simpledatabase.

Be able to editand format adatabasestructure andsetting up aprimary key.

Hands-on:

Create a database on:o class registero employee

details

Open a database andedit its structure andcertain fieldsproperties.

create a database table

open and edit a databasestructure

format a fields properties(date/time format currency,number format, etc)

save the edited structure

assign a field as a primary keyin a database.

insert validation rules andinput masks

U4:(Pg 2-1 to 2-7)

U4:(Pg 6-1 to 7-7)

U4:(Pg 10-1 to

10-13)

Homework


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1week

FORM ANDREPORT

Be able todesign a formand a reportusing wizardfeatures.

Hands-on:

Create a form and areport for a database.

identify the criteria fordesigning a good form fordata-entry

create and edit form andreport in database

insert logos and pictures

Duration (no

ofweeks)

Topic LearningObjectives

Learning ActivitiesLearning outcome

(At the end of the lessons,students will be able to )

ResourcesAssessm

ent

1 week

QUERY Be able tocreate a querystatement todisplay recordswith specialconditions

Hands-on:

Create several simplequery refereeing asingle database

identify several ways tosearch and display throughcertain information in adatabase

o

filter by formo filter by selection

create complex searches thatuse two or more criteria (e.g.Status = part-time AND Age>55 years).

U4:(Pg 9-1 to 9-22)

Homework

1 week TABLESANDRELATIONSHIPS

Be able tocreate and setrelationshipsbetweenmultiple tables

Hands-on:

Create a secondtable concerningemployees salarydetails andexperiences

Assign a field that isidentical to the first table as aunique field for later link.

create and save the tables

database file.

U4:(Pg 11-1 to11-7)

Homework


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Hands-on:

Open the databasestables and set up arelationship betweenthem.

Activate the database andselect tools menu to link thetables in that database.

Link the tables by selectingthe RELATIONSHIP bar at theoption list.

Enforce a referential integrityto create a relationshipbetween the two tables.

1 week

Be able todesign arelationshipbetween tables

Demo:

Open a databasewhich has multipletables. Show studentshow the process of thethree relationshipsdiffers in used.

State the three types ofrelationships

Explain the differencesbetween these relationships:One-To-One, One-To-Manyand Many-To-One.

Design and create theserelationships.

1 week

WORKINGWITHMULTIPLETABLES

Be able toassociateforms, queryand reportsbetween thesemultiple tables

Demo:

Create a form basedon the two tables.

Create a query or areport based on thetwo tables

Open a database containingat least two tables then createa form, a query and a reportbased on the two tables.

U4:(Pg 12-1 to12-10)

Homework

Duration (no ofweeks)

TopicLearning



Resources

Assessment


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1 week

DataPrivacy

Be able toidentify wherepersonalinformation arekept and themisuse of these

data.

Be able to statesome of theprinciplesinvolve in thedata protectionact.

Demonstration:

Show studentssome places wherepersonal informationis kept. Students tosuggest more places

where personalinformation is kept.

Show a video on howour personalinformation can bedisclosed to otherswithout our consent.Alternatively,students can copy ordownload and watchthe video at home.

define the term data privacy.

identify where ones personalinformation is kept e.g.hospital health records andmagazine subscription.

give examples of possible

misuse of ones personalinformation.

list at least 3 principlesinvolve in the data protection

U13:(Pg 212-213)

U10:(Pg 135-

137)

OnlineResources:Video ondataprivacy

(Appendix12)

Homework

1 week

DataSecurity

Be able toidentify factorsaffecting datasecurity andmethods ofdata recovery.

Demonstration: Show pictures of

various ways in whichdata can be lost.

Suggest ways torecover lost data andprovide examples ofvarious ways to back-up data.

Hands-on:

Students to back-upinformation stored ona selected folder inthe hard disk onto afloppy disk or otherstorage media.

Restore data from

define the term data security.

list possible dangers of losingfiles.

Suggest ways to recover lostdata.

(Appendix 9)

U10:(Pg 128-130)

Task:U7: (Pg15-16)

OnlineResources:

News onDatasecurity

Slides onDatasecurity

SuggestedExercise:

U7:(Pg 17-18)

U9:(Pg 56-57)

On-line

Games

(Appendix12)


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continued

the back-up disk.Suggested Ref:B2: (Pg 17-20)

(Appendix12)


TopicLearning



Resources

Assessment

Group Work:

Task worksheet withvarious scenarios ofdata lost. Studentsto determine thecauses and what canbe done to overcome

the problem.Suggested Ref: U7(Pg 15-16)


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4 weeks

.continue

d

SYSTEMANALYSIS

Be able to listthe mainstages ofsystemanalysis.

Task:Draw the system lifecycle diagram

list the main stages of systemanalysis:(suggested model)

o Fact findingo Feasibility Studyo Analysiso Designo Implementationo Testingo Documentationo Evaluation /Maintenance

U7:(Pg 60-69)

U5:Pg. 93-99

Homework

Be able toexplore theproblems ofexisting

system.Be able to statethe tasks thatare involved inthe feasibilitystudy stage.

Be able toevaluatealternative orpossiblesolutions.

Group work:Discuss methods of factfindings.

Discuss on examples of

problems faced by anorganization/company:

o Too long to findcustomersdetails.

o Sales figures arenot up to date.

o Etc

state the methods of factfindingo observationo interviewing

o questionnaireo reviewing

state examples of problemsidentified by an organization.

list the components of afeasibility report

determine theorganizations objectives

determine the nature andscope of the problem


TopicLearning



Resources

Assessment


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SYSTEMANALYSIS

Hands on:To construct aquestionnaire andquestions to beprepared for aninterview.

propose alternativesolutions

describe costs andbenefits of the newsystem

prepare a preliminary plan

and course of action

Be able toanalyze andevaluate thecurrentsystem.

Demonstration:Show samples of dataflow diagrams, systemsflowcharts, etc.

to analyze and evaluate thecurrent system in greaterdetailo a broad description of the

current systemo the flow of information of

the current systemo the evaluation of the

current system

to identify the flow ofinformation in and out of thesystem

U7:(Pg 60-69)

U5:Pg. 93-99

Homework

Be able toapply top-downdesignprinciples toproblemsolving.

Group work:Discuss on the top-downdesign for a payrollapplication.

define top-down design.

state the reasons for usingtop-down design principles.

apply top-down designprinciples for a softwaresolution.

list the tasks carried outduring the design stage.


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Be able toidentify theimplement ionmethods.

Group work:Identification ofconversion methods fordifferent systems.

list the tasks in theimplementation stageo install any new hardwareo provide training to the

userso convert or use the new

system through direct,parallel or phasedapproach.

identify the methods ofimplementation

o direct change overo parallel running

Homework


TopicLearning



Resources

Assessment

SYSTEMANALYSIS

o phased implementation

list the advantages anddisadvantages for

each implementation method.

Be able todesign datatestingstrategy.

Group Work:Discuss on examples oftest data used in asystem.e.g. data used in aschool marks processingsystem

design a sample test data totest a system using:o normal/standard datao abnormal/invalid datao extreme data

U7:(Pg 60-69)

U5:Pg. 93-99

Homework

Be able todifferentiatebetween userdocumentationand technicaldocumentation.

Group Work:Discuss the purpose ofuser and technicaldocumentation.

differentiate between userdocumentation and technicaldocumentation

list examples of items in userdocumentation and technicaldocumentation.

Homework


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Be able to statethe needs formaintenanceandevaluation ofthe system.

Group work:Discuss reasons forevaluating the system.

identify ways to maintain thesystem:o performance monitoredo modification made if

requiredo errors correctedo documentation kept up-to-

date

state the reasons formaintenanceo program faultso changing needs of the

organizationo accommodate changes in

its external environmento improve system

performance upon

customers requesto changes in legislation

state the reasons for evaluation

Homework


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Duration (no

ofweeks

)

TopicLearning



Resources

Assessment

2weeks

Practicewith MSPowerPoint

Be able todevelop andformat simplepresentations.

Hands-on: Create a presentation

containing 5-6 slides.

create, save, open and closea presentation.

enter and format text.

format slides.

switch between openpresentations.

use available help functions.

(Appendix 6)

OnlineResource:

PowerPoint Tutorial

(Appendix13)

Homework

Be able toidentify the

generalfeatures andmake use themfor amultimediaapplications.

Hands-on:

Open a presentation fileand incorporated sound orvideo and animatedimages.

Incorporate a recordedvoice into a presentationfile.

Hyperlink slides.

make use of some

interesting elements orfeatures in a multimediapresentation: video, soundand animation.

hyperlink slides to otherslides, other presentationfiles or different format filesor a website.

(Appendix 7)

OnlineResource:

PowerPoint Tutorial

Homework

1 week

Moviemaker

applicationpackage

Be able tocreate a simple

storyboardusing a moviemakerprogram.

Demonstration:

Produce a simple movieclips.

create save, open a movieusing still pictures or videoclips.

make use of the taskbutton.

(Appendix 7)

Homework

Progresstest


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1 week

.continued

MultimediaSystem

Be able tounderstand theneed &features ofMultimediaSystem

Discussion:The Definition of MultimediaSystemHardware Components andexamples of such system.[Encyclopedia, Computer

Aided Learning, E-commerce, Graphics inmovie making]

explain the need for amultimedia system

justify the need for varioushardware components inthe multimedia system

U11:(Pg 84-86)www.webopedia.com/TERM/m/multimedia.html

Duration (no

ofweeks)

TopicLearning



Resources

Assessment

Hands-on:Log-on to the internetbrowsehttp://dir.yahoo.com/Co

mputers_and_Internet/Multimedia/And find someapplication ofmultimedia system inbusiness.

http://dir.yahoo.com/Computers

_and_Inter

net/Multimedia/


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http://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.htmlhttp://www.webopedia.com/TERM/m/multimedia.html


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GUIDELINE FOR TEACHERS:

SUGGESTED CHECK LIST ON CREATING A DATABASE:

TOPIC

TASKS SUGGESTED TASKS AND DIRECTION OF ACTIVITIESTICKHERE

:

DATABASEMANAGEMENTSYSTEM Create

database

Open and create a database

Save it and create a database structure for that particular database. Close the database.

Close the database

Customizing thestructureand fieldproperti

es

Open a database and change its structure

Identifying fields like numbers, date/time and currency. Edit the properties like the validationrule, the null value and the format, the primary key settings.

Save the edited structure and proceed with data-entry based on the new structure. Watch thedifferent.

Design aformusingwizard

Create a form using wizard

Specify a suitable style, background and layout for the form

Save the form

Design areportusingwizard

Create a report using wizard

Specify a suitable style, background and layout for the records to be printed

Making use the sorting features

Save the report.

Design aquery

statement with

differentcriteria

Create a query statement using relational and logical operators

Insert or add a database / table ADD and CLOSE

Specify the criteria for searching particular information

Create a form to display the answers for the query created earlier


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USINGMICROSOFTACCESS:BASICLEVEL

Create several queries on different searching criteria.

DBMS:

INTERMEDIATELEVEL

Tablesand

relationships

Create a new table in a database created earlier.

In the new table specify a primary key and save the table.

Activate the database, if it is closed. Click at the TOOL menu and choose Relationship at theoption list. A dialog box [Relationships] appear on the screen, which contain the two tables. Linkthe primary key of the first table to the second table.

Tick the small box [Enforce Referential Integrity] in the edit relationships dialog box, and finallyclick the CREATE button.

Create a One-Many link, simply drag a field name (in one table) to more than one fields in thesecond table

Create a many-One link, simply drag multiple fields (in the first table) to a single field in thesecond table.

DBMS:

Workingwith

Multiple

Activate a database, click on query tab and create a NEW query. In the show table window,select and add the tables (more than one) to the query. Click and drag the table fields to thefield row of the design area, save the query or click RUN icon to see the result.


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INTERMEDIATELEVEL

tables

Activate a database, click on Forms tab then on New. In the Form wizard dialog box, select onetable first and select some fields from the available fields column. Then select another tableand select other fields from the available fields column. Then click NEXT button. Chooseappropriate layout and Finish

Activate a database, click on reports tab, select Report Wizard, select the fields from severaltables then click Next, and finally Finish button after saving.

SharingInformati

onbetween

application

Copy access data to word: use the copy and paste method OR using the Export method, select a

query table then click at the File EXPORT option list.

Linking access table to Word document: In word, select View menu -> Toolbars database.Click the INSERT DATABASE icon and GET DATA. In the open data source window select MsAccess database and the databases file, choose a table in it. Select a style and finally OK. Click(tick it) INSERT DATA and ALL option. Check the INSERT DATA AS field. With the steps above, thelnk to the database file is now established.

Creating a Mail merge : Type a letter or a certificate in word. Select Tools menu Mail merge.

Click CREATE button and choose Form letters. Select active window, click GET DATA OpenData Source. State the access table to get the data form. Select and insert the FIELDS into theappropriate place in the document (i.e letter or certificate). Click MAIL MERGE HELPER ico andthe MERGE Select ALL (records to be merge) and click MERGE button.

Export Access Data To Excel: 3 methods: (1). Use copy & Paste Method : Open access table,highlight it and click on the COPY icon, start Excel and Paste it. (2), Export Method : start and

open an access table, select File Export, in the export table payroll to window, select the filetype Microsoft Excel and click SAVE. (3). Office Links: Open the access table, select Tools menu

Office links. Select Analyze It With Ms Excel. A copy appear in excel


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GUIDELINE FOR TEACHERS:

SUGGESTED CHECK LIST ON SYSTEM ANALYSIS:

PHASE

Tasks Suggested tasks and direction of activitiesTickhere

PreliminaryInvestigatio

n

Preliminary AnalysisDetermine organization objectives

Determine nature / scope of the problem.

ProposedAlternative solutions

Leave the system as it is

Improve the system

Develop a new system

Describe Costs &Benefits

Aware of: unnecessary steps / errors/ redundancy

Submit aPreliminary Plan

All findings compiled in a written report

Analysingthesyste

m

Gather data

Tools: gather any written document e.g: organizational chart

Held structured interviews, set questionnaires, observation and sampling

Analyze the data

Use modeling tools: (any 5) data flow diagram, systems flowcharts, connectivitydiagrams, grid charts & decision tables.

Any analysis phases done above should be documented.

Designthe

system

Do a PreliminaryDesign

Describes general functional capabilities of a proposed information system.

Use 3 tools: Prototyping, CASE tools & Gantt Chart/ PERT chart.

Do a detail designDescribes a proposed information system will deliver the general capabilities (in thepreliminary design): Output/Input requirement; storage; processing requirement & systemcontrol / backup

Write a Report Compile both the preliminary as well as the detail design to a detailed report.


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PHASE

Tasks Suggested tasks and direction of activitiesTickhere

Developthe

system Obtain the hardware Some organization prefer to lease rather than buy some of the expensive hardware

Obtain the softwareMake-or-buy decision : an analyst has to decide whether to make a new program

(custom-written) or buy it simply purchase an existing software package.

Test the system (2types)

Unit testing: individual parts of the program (subroutines) are tested using test data.

System testing: the parts are then linked together and test data is used to see if theparts work together.

Implement

thesystem

Convert to the newsystem

Direct approach: stops using the old system and starts using the new one.

Parallel approach: old and new system operated side by side until the new system hasshown it is reliable.

Phased approach: parts of the new system are phased in gradually.

Pilot approach: the entire system is tried out but only by some users.

Train the users

Using instructional manuals

Video tapes movie showing clips

Live classes (1-1) or (1-Many)

Maintain

thesystem

AuditingDesign an audit trail which helps auditors to trace the record of transaction from itsOUTPUT back through all processing and storage to its source.

Evaluation

Comparing the workings of the system against some preset criteria.


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Computer Studies - Year 10 (3 Years)

Documents

Transcript of Computer Studies - Year 10 (3 Years)