Understanding functionality and structure Aim Design scaffolds - - PDF document

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Understanding functionality and structure Aim Design scaffolds - - PDF document

Jan 18, 2024 312 likes •444 views

INF 3280, 5 Feb 2020 Understanding functionality and structure Aim Design scaffolds for understanding IT use Complete Assignment 2 Core literature: Chapter 4. Understanding IT Additional literature Aharoni, D.

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Jens Kaasbøll INF 3280, 5 Feb 2020

Understanding functionality and structure

  • Aim

– Design scaffolds for understanding IT use – Complete Assignment 2

  • Core literature:

– Chapter 4. Understanding IT

  • Additional literature

– Aharoni, D. (2000) Cogito, ergo sum! Cognitive processes of students dealing with data structures – Furuta, T. (2000) The Impact of Generating Spontaneous Descriptions on Mental Model Development – Vessey & Conger (1994) Requirement Specification: Learning Object, Process, and Data Methodologies

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Understanding in addition to skills

Learning IT never ends

  • New functionality
  • New installations of

software

  • New versions of software
  • New vendors
  • New software types
  • New hardware

Understanding ease learning compared to skills only

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Understanding functionality and structure of IT neccessary for IT competence

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Jens Kaasbøll INF 3280, 5 Feb 2020

Type the Column letter. Type the Row number. In order to have one cell refer to another, one has to get the coordinates of the other cell into the formula Cell-referencing is an ingredient in formulas

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Levels of ease of understanding

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Data and

  • bject

modelling Difficult

Vessey & Conger, 1994

Process modeling Easy

Customer Occupancy Room Reservation Event Travel Agent Cleaning Restaurant expense Restaurant Organiser Invoicee

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Jens Kaasbøll INF 3280, 5 Feb 2020

Structural models – scaffolds for structural understanding

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  • Recognisable
  • Simple

– Only essentials

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Data structures

  • 1-many relationship between

customer and address – Not explicitly stated Restrictions on values

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Jens Kaasbøll INF 3280, 5 Feb 2020

  • 1. Find the data structures

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  • Outline views
  • Data models
  • Deduce from user interface

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  • 2. Decide main and sub structure types

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  • Sequence
  • Grid (array,

matrix)

  • Hierarchy
  • Network

Combinations?

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Jens Kaasbøll INF 3280, 5 Feb 2020

  • 3. Decide user group

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  • Most users
  • Entering and reporting à Only data
  • Superusers
  • Setting up data structures à Include types

Visit

Visit-ID Patient Visit-type

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  • 4. Include abstract entities

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  • Events in the Domain represented by a record
  • Planned events

Occupancy From date # nights # guests Reservation From date # nights # guests Room type

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Jens Kaasbøll INF 3280, 5 Feb 2020

  • 5. Include examples
  • In the model
  • Relate to

recognisable places in the user interface

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Customer Name: Fjoralba Address: Oslo Phone: 123456 Email: fj@mail.com Reservation From date: 24.03.14 # nights: 3 # guests: 2 Room type: Luxe

New reservation

Name Fjoralba # guests 2 From 24 March 2014 # nights 2 Room type Luxe

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Customer Name Address Phone Email Occupancy From date # nights # guests Room Type # beds Price Reservation From date # nights # guests Room type

Structural models for intermediate level users

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Jens Kaasbøll INF 3280, 5 Feb 2020

Types and Instances

  • Description of a common

set of symbols and

  • perations

Integer

Number without decimals Calculation operators

  • A unit of data adhering to

the type

13 Account Balance Owner Deposit Withdraw :Account 18 473.32 Kari :Account 3 292.00 Ola

Class Objects

234 -2 1 000 000

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Obtaining a structrural understanding

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Sure. You know recipies for making food? And knitting patterns and sweaters? Styles and paragraphs are

  • similar. Styles

determine the layout of paragraphs. Yes, I normally follow patterns.

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Jens Kaasbøll INF 3280, 5 Feb 2020

Structural model of IT – Generalisation-specialisation

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Data link Cross reference

  • inside a document

Hyperlink

  • between files

Specialisations

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  • Recognisable
  • Simple

– Only essentials Unknown notation Recognisable

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Jens Kaasbøll INF 3280, 5 Feb 2020

Functional and Structural model of IT – Discrimination

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C

  • p

y

  • P

a s t e Hyperlink

Inconsistencies when updating the spread sheet Inconsistencies avoided

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18 Microsoft Help Word > Page breaks and section breaks > Insert a section break

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Jens Kaasbøll INF 3280, 5 Feb 2020

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Hyperlink

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Video

  • Make learners feel being in a conversation

– We and you – Learning agent – Natural voice

  • Describe complex visuals with audio only

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Jens Kaasbøll INF 3280, 5 Feb 2020

Exploiting both the visual and oral channels

  • Teaching and videos

àMinimum of written text

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Speech Written text Pictures Phonetic processing Visual processing Eyes Ears Very limited capacity Long term memory

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Testing understanding

Questioning the learners – What is a … – What is the result of … – What is the difference between … Not – How do you … – Where do we find …

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A style is a … a. document which looks good. b. collection of formatting for a document. c. common set of formatting for all paragraphs. d. collection of formatting for a paragraph. e. sequence of characters of the same shape. f. uniformly looking document.

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Jens Kaasbøll INF 3280, 5 Feb 2020

Summary

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c Which types of learning material does this Excel tutorial consist of?

  • 3. Provide functional and structural

models and confront misconceptions.

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