Re: [aus-dotnet] UML 2 and Microsoft

[Alex Hoffman]

I don't speak for Microsoft, but I would think that they fully support 
UML 2.0 as a notational language.  Where they differ with the wider 
community is in regards to Model Driven Development.
Microsoft believes that UML is ineffective as a language for expressing 
domain concepts.  A better method of bridging the gap of understanding 
between business/organisational users and developers is required.
The CASE experience supports that.  Essentially, the only difference 
between CASE and MDA today, is that each CASE implementation was vendor 
specific, whereas MDA is an OMG standard.
Microsoft therefore advocates that Domain Specific Languages (DSL) which 
domain users can understand be the basis for generational models which 
themselves are the basis for reuse.
Google for "software factories", "domain specific languages", "language 
oriented programming", "MDA" for more info.
Alex Hoffman

ILT said the following:
> Perhaps also a little bit off-topic, but I haven’t been across any 
> argy-bargy about why (if it’s true at all) Microsoft is “against” UML 
> and in particular UML 2.0  - this ComputerWorld / InfoWorld interview 
> points the finger (at least, the IBM guy does) –
>  
>
> InfoWorld Editor at Large Paul Krill talked about the subject with Brian 
> Selic, IBM Distinguished Engineer and co-chairman of the OMG task force 
> on UML 2.0.
> http://www.computerworld.com.au/index.php?id=550886093&eid=-301 
> <http://www.computerworld.com.au/index.php?id=550886093&eid=-301>
>  
>
> Can anyone educate me on this?
>
>  
>
> IL Thomas
>
> GeoSciSoft - Perth, Australia
>
>  
>
> -----Original Message-----
> *From:* dotnet-owner@xxxxxxxxxxx [mailto:dotnet-owner@xxxxxxxxxxx] *On 
> Behalf Of *Andrew Parsons
> *Sent:* Thursday, 2 December 2004 6:39 PM
> *To:* dotnet@xxxxxxxxxxx
> *Subject:* RE: [aus-dotnet] OT - IE pagesave failures
>
>  
>
> I was able to save the page to disk fine, but if you're having problems 
> with that particular page, click on the Printer Friendly button on the 
> left and save that version - less than half the size (and most of that 
> would be unneeded Javascript).
>  
>
> ------------------------------------------------------------------------
>
> *From:* dotnet-owner@xxxxxxxxxxx [mailto:dotnet-owner@xxxxxxxxxxx] *On 
> Behalf Of *ILT
> *Sent:* Thursday, 2 December 2004 4:24 PM
> *To:* dotnet@xxxxxxxxxxx
> *Subject:* [aus-dotnet] OT - IE pagesave failures
>
> Curiosity about 1752 and the change to the Gregorian calendar led me to 
> link to the page
> http://www.ancestry.com/learn/library/article.aspx?article=3358
>
> and I decided to save it to disk – but IE6 won’t play
>
>  
>
> I’ve asked this on MS newsgroups (I hope not here; if so, sorry folks) 
> and don’t get a wholly convincing answer. The work-around I use when I 
> really want” a page is to print as a PDF file. But that’s not always 
> great, because some webpages are made for screens at 1400px width and 
> can’t print to paper (hence, a PDF default A4 pagesize slices off the 
> right margin).
>  
>
> Any thoughts?
>
>  
>
> Ian Thomas
>
> GeoSciSoft - Perth, Australia
>
> -----Original Message-----
> *From:* dotnet-owner@xxxxxxxxxxx [mailto:dotnet-owner@xxxxxxxxxxx] *On 
> Behalf Of *Hungerford, Martin (Contractor)
> *Sent:* Thursday, 2 December 2004 10:13 AM
> *To:* 'dotnet@xxxxxxxxxxx'
> *Subject:* RE: [aus-dotnet] #12:00:00 AM# ..is date
>
>  
>
> Tim
>
>    Your info is correct for England.  In Russia, IIRC, the days were 
> removed in 1917.
>  
>
> Martin
>
>     -----Original Message-----
>     *From:* dotnet-owner@xxxxxxxxxxx
>     [mailto:dotnet-owner@xxxxxxxxxxx]*On Behalf Of *Tim Wilson
>     *Sent:* Thursday, 2 December 2004 1:15 PM
>     *To:* 'dotnet@xxxxxxxxxxx'
>     *Subject:* RE: [aus-dotnet] #12:00:00 AM# ..is date
>
>     By the way, do people know why SQL Server uses 1753?
>
>      
>
>     About 8 years ago I was doing some SCO System admin, when I stumbled
>     across some interesting information reading through the "MAN"
>     command (online manual) pages, looking for information about
>     date-related commands. It's interesting to note that in September
>     1752, 11 days were subtracted from that month in Gregorian calendar
>     (the one used by western society today). Interestingly SCO Unix
>     displayed a calendar for that month - with exactly 11 days missing.
>
>      
>
>     Curious about the details of the calendar change, do a search for
>     words "gregorian","1752" and "semptember". eg...
>
>     http://www.ancestry.com/learn/library/article.aspx?article=3358
>
>      
>
>     .Net uses the same method as SQL for controls DateTimePicker and
>     MonthCalendar - you cant display it because of a curious mindate.
>     Not much of a problem for most applications.
>
>      
>
>     Tim.
>
>         -----Original Message-----
>         *From:* anthony [mailto:list@xxxxxxxxxxxxxxx]
>         *Sent:* Thursday, 18 November 2004 10:57 PM
>         *To:* dotnet@xxxxxxxxxxx
>         *Subject:* RE: [aus-dotnet] #12:00:00 AM# ..is date
>
>         thanks
>
>          
>
>         ------------------------------------------------------------------------
>
>         *From:* dotnet-owner@xxxxxxxxxxx
>         [mailto:dotnet-owner@xxxxxxxxxxx] *On Behalf Of *Andrew de la Harpe
>         *Sent:* Thursday, 18 November 2004 10:02 PM
>         *To:* dotnet@xxxxxxxxxxx
>         *Subject:* RE: [aus-dotnet] #12:00:00 AM# ..is date
>
>         A date always has a value.
>
>         Date dt = new Date() = 00:00:00.0000000, January 1, 0001
>
>         Your problem is that this is probably less than the allowed
>         value for your datatype.
>
>         eg SQL Server datetime type has a min value of  January 1, 1753 .
>
>          
>
>         Usually it's best to insert a null for unassigned dates.
>
>         ie. if ( dt > DateTime.MinValue)
>
>                 set param here...
>
>         Andrew
>
>             -----Original Message-----
>             *From:* dotnet-owner@xxxxxxxxxxx
>             [mailto:dotnet-owner@xxxxxxxxxxx]*On Behalf Of *anthony
>             *Sent:* Thursday, November 18, 2004 9:55 PM
>             *To:* dotnet@xxxxxxxxxxx
>             *Subject:* [aus-dotnet] #12:00:00 AM# ..is date
>
>             I have property defined as datetime...when i read the
>             property wihout any assignment the value is #12:00:00 AM#
>
>              
>
>             if i use isdate..it returns TRUE but this will not submit to
>             SQL...How do i detect a valid datetime for SQL?
>
>              
>
>              
>
>             Anthony
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