Changes

<div style="background-color: #FFF; margin-left:auto; margin-right: auto; width: 95%;">

<div style="background-color: #FFF; margin-left:auto; margin-right: auto; width: 95%;">

<noinclude>{{Translations}}{{GoogleTrans-en}}</noinclude>

<noinclude>{{Translations}}</noinclude>

{{hig-subnav-intra|p_page=View Source|c_section=The Laptop Experience|c_page=The Journal|n_page=Global Search}}{{TOCright}}

{{hig-subnav-intra|p_page=View Source|c_section=The Laptop Experience|c_page=The Journal|n_page=Global Search}}

The physical analog for an Activity is paper, pencil, & writer at a desk, canvas, paint, & artist at an easel, clay & hands at a wheel, or sidewalk, chalk, & children at a driveway. They exist as created and modified. No 'saving' action, per se, is needed.  The 'Keep' toolbar button (proposed to be 'Copy', [http://www.mail-archive.com/sugar-devel@lists.sugarlabs.org/msg13104.html]) provides the capability to replicate the current state of the Activity into a new, separately available'''*''' Activity object in the Journal.  Outside of software culture, such rapid and perfect replication has few physical analogs, and perhaps so has been a point of confusion.

The physical analog for an Activity is paper, pencil, & writer at a desk, canvas, paint, & artist at an easel, clay & hands at a wheel, or sidewalk, chalk, & children at a driveway. They exist as created and modified. No 'saving' action, per se, is needed.  The 'Keep' toolbar button (proposed to be 'Copy', [http://www.mail-archive.com/sugar-devel@lists.sugarlabs.org/msg13104.html]) provides the capability to replicate the current state of the Activity into a new, separately available'''*''' Activity object in the Journal.  Outside of software culture, such rapid and perfect replication has few physical analogs, and perhaps so has been a point of confusion.

: '''* Note:''' The Keep(Copy) action currently produces an object that shares an ID with its parent and so may not be opened simultaneously with its parent in the same Sugar instance. (This is a bug.)

: '''* Note:''' The Keep(Copy) action currently produces an object that shares an ID with its parent and so may not be opened simultaneously with its parent in the same Sugar instance. (This is a bug.)

'''Use case''': A teacher could easily prepare a series of [[Activities/Physics]] models illustrating the construction of a system through stages. The learning of the physical principles could be staged into separate lessons or exercises.

 

{{Highlight|bgcolor=lightyellow|'''Use case''': A teacher could easily prepare a series of [[Activities/Physics]] models illustrating the construction of a system through stages. The learning of the physical principles could be staged into separate lessons or exercises.}}

Incremental backups occur regularly and are also triggered by such activity events as changes in scope, new participants, etc.  To cater to the many needs of the editing environment, activities can also specify "keep-hints" which prompt the system to keep a copy.  For instance, a drawing activity may trigger a keep-hint before executing an "erase" operation immediately preceded by a "select all".  Of course, a child may choose to invoke a keep-hint by selecting the "keep in journal" button<!--[{{fullurl:olpc:File:542-keepicon.png}} http://wiki.laptop.org/images/3/32/542-keepicon.png]-->, but the increasing adoption of this new concept of keeping should ultimately eliminate this.  

Incremental backups occur regularly and are also triggered by such activity events as changes in scope, new participants, etc.  To cater to the many needs of the editing environment, activities can also specify "keep-hints" which prompt the system to keep a copy.  For instance, a drawing activity may trigger a keep-hint before executing an "erase" operation immediately preceded by a "select all".  Of course, a child may choose to invoke a keep-hint by selecting the "keep in journal" button<!--[{{fullurl:olpc:File:542-keepicon.png}} http://wiki.laptop.org/images/3/32/542-keepicon.png]-->, but the increasing adoption of this new concept of keeping should ultimately eliminate this.