Frameworks Prototype

Contents

• Frameworks Prototype
  • Contents
  • Instructions
    • User Levels
    • Model Management
    • Zooming and Panning
  • Object Model
    • Frame
    • Node
    • Line (link of association)

Instructions

You are the Thinker who would become Modeller. You will be constructing a ‘simple graphical model of ‘Thinking’.

Upon engaging with the 'Frameworks' tool you are presented with a version of the ‘Frameworks’ Meta Model depicting the first two nodes of the core spinal model. These are:

• The Focus which identifies the focus for the model
• The Context which identifies the context in which to consider the focus

The Focus and the Context must be named before you are able to continue elaborating the model by adding any additional nodes.

Once the Focus and Context have been named, new nodes can be added by either clicking on the workspace or selecting the elaborate button. New nodes will become children of whichever node is selected as active (indicated by the red circle).

Nodes can be selected as active by clicking on the circle. Clicking on the Text Label will follow the Link HREF of the Node.

When a node is active, clicking on it again will open the dialog to allow you to edit the node.

Nodes can also be moved by clicking and dragging on the circle.

The elaboration allowed is determined by the user level assigned to the model as below. The user level can be changed by clicking on the New Model Button and changing the user level.

User Levels

Model Management

There are menu buttons to allow:

• New Model Creation (and selection of User Level)
• Loading an existing saved model from Local Storage
• Saving the current model to Local Storage
• Exporting the SVG Image of the current model.

Zooming and Panning

There are zooming and panning controls for moving around larger models. These buttons are located under the model management buttons.

Object Model

The ‘Frameworks’ Tool: “The Intelligent Frame” is object-oriented consisting of:

• Frame; Thinking & Modelling Space
• Core Spinal Model; Focus Node, Context Node, Instances Node
• Nodes & Links of Association in a Simple Structural Model
• Stuff Box integral to Frame (to be completed)
• Elaborate Button integral to Frame

Frame

The Frame object manages the rendering and interactivity of the model within the SVG image on the HTML page. The frame is responsible for enforcing the constraints of the metamodel within the scope of the users'* expertise level. This includes:

• Requiring the user to name the Focus Node
• Requiring the user to name the Context Node
• Allowing elaboration of the model by adding nodes depending on the user level

Note: * - ”The “User” in ‘Frameworks’ is the “Thinker Modeller”

Methods are included for:

• Adding Nodes via Mouse Interation
• Adding Nodes via Elaborate Button
• Downloading Frame SVG Data
• Starting a new model and selecting the user level for the new model
• Saving Frameworks Model to localStorage (within Browser)
• Loading Frameworks Model from localStorage

Node

The Node object contains the information related to each node in the model including:

• The Nodes Unique ID in the model
• The Nodes Name
• A description of the Node to be displayed when the mouse hovers over the node
• A hypertext link for a web page that the node links off to
• A list of all the child nodes of this node in the model

The Node also contains methods to allow the node to be rendered and interacted with via the SVG representation within the frame. These methods include:

• Node Creation
• Node Update via Dialog Box
• Node Move
• Node Deletion

Nodes can also be protected by the metamodel to prevent certain nodes from being deleted or moved (e.g. Focus and Context Nodes).

Line (link of association)

The line object provides methods for drawing and manipulating the lines connecting nodes in the SVG image within the frame. These include

• drawLine - to Draw the lines within the Frame.
• drawLineTo - to draw a line to a specific node.
• getLineGeometry - calculate the line geometry to align to node edges.