[Xerte] Interface Volume Control
->awider considerationofnavigation in Xerte
Julian Tenney
Julian.Tenney at nottingham.ac.uk
Thu Mar 11 14:48:11 GMT 2010
How many dimensions to the branching are there?
What I mean is can you branch, then branch again and so on, or do you
branch and then return to the linear flow: a bit like:
Answer this question: if badly wrong goto A; if slightly wrong goto B;
if mostly right goto C, etc. From A B C you return to the main linear
flow. That is manageable.
When you have n dimensions, it is not manageable easily, but an
interesting programming problem. I think in the past I've tackled it by
storing the branching structure as a tree, and then essentially
recursing it. You can store a tree as an array of objects with id and
parentID properties; parsing the array you can build the tree. Each node
on the tree presents interactivity that results in moving to one it it's
'children'; then you can decide whether to move to the next node, etc,
or have some other logic decide where to branch to. This means you can
manage the interactivity with one big long linear framework, which is
convenient.
From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Johnathan
Kemp
Sent: Thursday, March 11, 2010 2:24 PM
To: Xerte discussion list
Subject: RE: [Xerte] Interface Volume Control ->awider
considerationofnavigation in Xerte
I'm not quite sure what it is you are trying to achieve here.
I had a small project a while ago, before I started developing the page
wizards, that required a non-linear route through it.
I achieved it at the time by
1. each page had a number of buttons on it - these were the exit routes,
and different pages had a different number of buttons.
2. I had a destination array for each page that had an entry for each
button in it and the entry was the page name of the destination page.
3. I had a master array that had one entry in it per page, each entry
being the destination array for that page
This enabled me to identify the index of the current page and then to
use that to look up the destinations for that page in the master array.
Because the destinations are defined in separate arrays, all then held
in a master array, there would be nothing stopping you from defining a
wholly different route through the pages by simply defining set of
arrays and then using your variable to decide which array set you used,
but it could soon get horribly complicated.
I am not sure if your varying navigation will be taking place within
pages in a framework or between pages in the main interface.
For example you could have a page off the project interface that asked a
question and as a result of your answer you either went down framework A
which was linear or framework B which was linear.
If you had a number of icons to show or hide, all controlled by one
variable you could save a series of 1s and 0s e.g. 0110 which could then
be parsed by script to separate out each integer from the string so that
0110 effectively turned of icon 1, turned icons 2 and 3 on and icon 4
off.
I have no idea if any of this is any help but you never know.
Kind regards
Johnathan
Johnathan Kemp
ICT Development Coordinator
Connexions Staffordshire
www.cxstaffs.co.uk <http://www.cxstaffs.co.uk/>
01785 355714
________________________________
From: Peter Snowball [mailto:southman at internode.on.net]
Sent: 11 March 2010 12:34
To: Xerte discussion list
Subject: Re: [Xerte] Interface Volume Control -> awider
considerationofnavigation in Xerte
We were going to approximate a sort of nonlinear navigation by hiding
certain icons in a number frame work(s) depending on the choice (say a
button) which the users make as the content is substantialy the same but
modified depending on the user choice (eg same frame work - different
navigation). We would like to store this choice in some variable so the
user is reminded of the choice made and have the hide/show code related
to the frame work as can see it would get very tricky if you allow
layers of choices or changes to a number of frameworks . This would
avoid breaking into several learning objects with essentially duplicated
content and avoid duplication of the choice. Forward and Back option
would allow navigation to follow a certain path depending on user choice
or based on a variable storing a previous choice. Havent tried this yet
(storing a variable to hide icons etc ) so appreciate comment.
Peter Snowball
Dept Of Economic Development
Tasmania
On 11/03/2010 10:12 PM, Johnathan Kemp wrote:
I appreciate the points you make. Whatever facilities you build into
Xerte there will be some people who use them inappropriately.
A large learning object which is non-linear may not be completed at one
sitting and there is no save facility in Xerte to get you back to where
you were. A page that has an input box, that allows you to type in a
page name or keyword, which Xerte then uses to take you to the page
referenced by that name or key word might be one solution. A non-linear
project could offer this at the start, to enable you to jump in at a
point that you had previously achieved. Alternatively you just keep the
non-linear bits of a project relatively short, so that starting from the
beginning is not much of a hardship.
It rather depends on the learning experience you are trying to create.
I agree there are times when you definitely want to be able to access
every / any page of a learning object in any order or sequentially and
Xerte works well for that.
There are times though - maybe as part of a learning exercise, when you
want to set the user challenges and direct their route through the
learning object based on their responses. Additionally such sequenced
learning objects can perform less as learning objects and more as
performance support resources, e.g. to guide a support person through a
trouble shooting process. In such cases you don't necessarily want the
user to be able to get at every page, just the right page at the right
time.
Right now, I would suggest creating a template that creates a navigation
structure, with links to learning objects created using the existing
templates. Then you can separate the navigation from the content - a
good thing in my view.
If I understand you correctly this is seeking to create something akin
to a contents page in a book, where you could have chapter headings and
sections within chapters, each section of which would link to a learning
object created in Toolkits (or Xerte). I agree this separates the
navigation from the content. This also facilitates the re-use of
content. A learning object that shows how to crack an egg, can be
included in separate courses on how to make pancakes and how to make a
victoria sponge (high level courses these!). It doesn't resolve the
situation in which the navigation is a core part of the learning
experience.
I remember a Chess tutor book by Lasker that worked that way. It
explained a concept then gave you a game problem to solve, after which
you were given a number of possible responses. Depending on the response
you chose you were directed to a different page of the book. Correct
responses lead you to an explanation of why the response was correct and
to the next concept. Incorrect responses lead you to a page that
explained why your solution would not work and then redirected you back
to the problem.
You can remove the various controls as you need - you just need to know
how to get at them from your code.
Is this a trade secret or would you like to reveal more :-)
I know the code I need to support a back button and a home button. How
feasible would it be to add them to the desktop Xerte interface as
additional options? How could this be done?
Kind regards
Johnathan
Johnathan Kemp
ICT Development Coordinator
Connexions Staffordshire
www.cxstaffs.co.uk <http://www.cxstaffs.co.uk/>
01785 355714
________________________________
From: Julian Tenney [mailto:Julian.Tenney at nottingham.ac.uk]
Sent: 11 March 2010 10:04
To: Xerte discussion list
Subject: RE: [Xerte] Interface Volume Control -> a wider
considerationofnavigation in Xerte
Hmm. Many questions. When things start getting non-linear it becomes
very easy for someone less skilled to create a real dogs dinner, and
there are many interface considerations: to ensure the user knows where
they are in relation to the rest of the content; that they can easily
get to the other bits; and that they know what else the learning object
contains and don't miss bits; and that they can easily return to points
of interest they've visted before.
I think there are probably two types of interface that would suit
toolkits; the linear one we have now; and a tree based structure where
the user drills down into the content, which could be n levels deep. How
the user navigates this is possible in many ways (a tree-based TOC, or
menu pages, or by answering MCQs or... well, you see the problem. How to
do it?
Right now, I would suggest creating a template that creates a navigation
structure, with links to learning objects created using the existing
templates. Then you can separate the navigation from the content - a
good thing in my view.
You can remove the various controls as you need - you just need to know
how to get at them from your code.
From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Johnathan
Kemp
Sent: Thursday, March 11, 2010 9:48 AM
To: Xerte discussion list
Subject: RE: [Xerte] Interface Volume Control -> a wider consideration
ofnavigation in Xerte
There are probably many Xerte users out there who do not have access to
Flash or lack skills in using Flash. They also lack actionscript skills.
The whole idea of page templates appears to be to make things easy for
the none technical user.
How about if the navigation could become more flexible so as to allow
none technical users the facility to customise their navigation options,
both in Xerte and in Xerte using project wide templates?
At present the navigation options in Xerte out of the box are limited,
kind of an all (visuals =1) or nothing (visuals = 0)
I am just finalising a page wizard that includes the capability to add
individual exit points i.e. in this case radio buttons, each of which
has a page name assigned to it in the wizard. When the learner clicks on
the radio button they are taken to the assigned page - instant
non-linear learning objects. However with the current navigation options
I have had to turn off visuals. Previous and Next buttons have little
sense in a non-linear learning object. However what are really useful
are Home and Back buttons (Back based on a LIFO queue). So to support my
wizard I have had to create a model based on an Entry Frame, that
provides user switchable navigation components (Page n of m, Home, Next,
Previous, Back, TOC, Last). The learning object creator can thus select
which navigation options are appropriate to their learning object.
If the navigation in Xerte could be set as configurable on a per button
basis, and include the volume control and also buttons for Home and Back
(I am not sure of the case for a Last button, I added it to my model for
completeness), then there would be no issue of the design of the volume
control failing to match the other controls in a custom navigation.
The next step would be to add options to page templates that would allow
as many individual page templates as possible to have one or more of
their own specified exit points which each lead to a specified page
based on the page name.
If a similar customisable navigation were added to the simple navigation
available in Frameworks then just think of the possibilities, e.g. a
linear learning object with non linear sections based on Framework
pages; Whole learning objects that had a non-linear structure;
Non-linear learning objects with some framework based sections that were
linear.
What do others think?
Kind regards
Johnathan
Johnathan Kemp
ICT Development Coordinator
Connexions Staffordshire
www.cxstaffs.co.uk <http://www.cxstaffs.co.uk/>
01785 355714
________________________________
From: Mark Tomlinson, AC&S Ltd [mailto:mark.tomlinson at acns-group.com]
Sent: 10 March 2010 10:36
To: 'Xerte discussion list'
Subject: RE: [Xerte] Interface Volume Control
If you are using a custom interface, then it won't likely 'fit in' will
it? We use a custom interface and have coded our own volume control.
Mark
From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Johnathan
Kemp
Sent: 10 March 2010 09:21
To: Xerte discussion list
Subject: RE: [Xerte] Interface Volume Control
If there are a number of sound or movie files with different audio
levels then having one global sound control will not solve the problem
of having to adjust the sound each time you play one of the movies. I
don't know whether there is any way to pass a parameter to the swf that
plays the movies to adjust the initial sound level either louder than
default or lower than a default volume, though that could get
complicated.
It would be useful to have a volume control, but if it becomes part of
the controls displayed when visual is set to 1 on the interface, then
anyone not using the default interface will have to also introduce a
volume control into their interface.
If the volume control could become part of the media control bar that is
displayed when a movie or sound file is played, then this would ensure
that it was available even when the default interface was not used. The
snag here is that it would not be available for swfs where Interactivity
was set to Native swf.
Perhaps the optimum solution would be to include the volume control in
the default interface, but to provide an easy way to embed the volume
control into any custom interface that was being used when
interface.visuals = 0.
Kind regards
Johnathan
Johnathan Kemp
ICT Development Coordinator
Connexions Staffordshire
www.cxstaffs.co.uk <http://www.cxstaffs.co.uk/>
01785 355714
________________________________
From: Adam Read [mailto:aread at marjon.ac.uk]
Sent: 10 March 2010 08:45
To: 'Xerte discussion list'
Subject: RE: [Xerte] Interface Volume Control
I use the continue button, bottom right is indeed the logical place I
think.
Adam
From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Julian Tenney
Sent: 09 March 2010 21:52
To: Xerte discussion list
Subject: RE: [Xerte] Interface Volume Control
Could it go in the bottom toolbar, between the combos and the continue
button? I could remove the text from the continue button, to make some
space and replace it with a tooltip, and then put a volume slider in
there? Does that work?
Do people use the continue button, or the next button in the top right
more? I think the continue button is in a very logical place in the
bottom left, but I tend to use the next button. The continue button will
lose something if it gets too cramped with the other controls I think.
Not sure where else the volume control could logically go? I'm not sure
I want to interfere with the standard media controller too much - I'd
prefer one control for global sound control..?
________________________________
From: xerte-bounces at lists.nottingham.ac.uk on behalf of Peter Snowball
Sent: Tue 09/03/2010 12:03
To: Xerte discussion list
Subject: [Xerte] Interface Volume Control
Is it possible to add a volume control to the interface (preferable) or
movie or sound icons. I havew a few movies and the audio volume varies.
Peter Snowball
Dept Of Economic Development
Tasmania
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This email and any files transmitted with it are confidential and are
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or unsuitable. Liability cannot be accepted for any loss or damage
arising from this email (or any attachments) or from scripts or any
virus transmitted.
This communication represents the originator's personal views and
opinions, which do not necessarily reflect those of Connexions
Staffordshire. If you are not the original recipient or the person
responsible for delivering the email to the intended recipient, be
advised that you have received this email in error, and that any use,
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--
Peter Snowball
Dept Of Economic Development
Tasmania
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This email and any files transmitted with it are confidential and are
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