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WinFS
Overview of WinFS
• WinFS stands for
Windows Future
storage.
• WinFS is the code
name of a Windows
storage subsystem,
being developed by
Microsoft for use on its
future Windows (c)
Operating System.
Overview of WinFS (contd..)
• WinFS is a relational
database located on NTFS
and representing itself to
the operating system as a
file storage subsystem.
• The underlying system is
based on Microsoft SQL
Server (c) database
engine.
• SQL engine is used to
search and catalog files.
Why WinFS?
• Current file system doesn’t
know how to collect and
find information within
theses new types of data.
• FAT or NTFS, has its
contents organized in a
hierarchal directory
structure and is relatively
slow in searching the
content by particular
attributes.
Why WinFS? (contd…)
• WinFS enables searching
for items by their attributes
(like date the photograph
was taken, who or what is in
the picture, what camera
was used to take the
picture, etc).
• WinFS understands any
arbitrary type of data such
as photo, email or calendar.
WinFS Architecture
• Stores data in virtual
locations called stores.
• WinFS store is a relational
store where applications
can store their structured
as well as unstructured
data.
• WinFS aggregates related
data.
• WinFS stores are simply
SQL Server database file
(.mdf files).
WinFS Technology
• Core WinFS
- Include operations and
file system services.
- Examples: Security,
manageability,
import/export and so on…
• Data Model
- Provides basic item
structure and relationships.
- Ability to extend both
items and relationships.
WinFS Technology(contd…)
•
Schemas
- Provides a more structured way to
handle your data’s metadata.
•
Services
- Synchronization enables you to
synchronize WinFS systems across a
network.
- Rules allow you to tell system how to
work with, sort, and deliver data.
•
API’S
- Program the different building blocks
of the WinFS system including data
operations, rules, synchronization and
the data model.
- TSQL gives access to items properties.
Schema Example
Person Item
Name
Walter
Smith
PersonalPicture
Addresses
Source Target
123 Main
Seattle
98144
1 MS
Way
Redmond
98052
123
Spring
Friday
Harbor
98250
Image
Item
My face
Music Example
Folder It em
Name
Golden Slumbers
Track It em
Title
AlbumTitle
Artists
Genre
Length
Here Comes t he Sun
Abbey Road
The Beat les
Rock
185
Track It em
Title
AlbumTitle
Artists
Genre
Length
Golden Slumbers
Abbey Road
The Beat les
Rock
91
WinFS Synchronization
• Includes support for
synchronization with
external data.
• Provides API’s that
allow synchronizing
with other WinFS
stores(other comps)
• Example: connected
device like mobile
phones.
Limitations of traditional File
System
• Strict hierarchical
organization
• Fixed, limited
metadata.
- Attribute
(filename).
• Fast enumeration,
slow search.
WinFS Benefits
• Flexible organization based
on real world schemas.
• Better search and
browsing.
• Application data sharing.
• Improved speed and
accuracy of finding
information.
• Multi-machine
synchronization.
WinFS Uses
Integrated storage
- Helps to reuse data. E.g.- for businesses, by allowing it to
automatically aggregate data from different departments.
Full text search
- Works with items fields.
Advanced search
- Custom made such queries such as to find “all persons whom
I called last weekend”.
Data mining
- WinFS can give more information about data, by using data
mining techniques.
WinFS Application Support
• Microsoft Rave
- Application shipped with WinFS Beta1.
- Allows synchronization of two or more WinFS
stores.
• Store Spy
- Allows one to browse WinFS stores by
presenting a hierarchical view of WinFS items.
• Project “Orange”
- To build a data visualization application for
WinFS.
WinFS Availability
• WinFS Beta 1 was made available to MSDN
Subscribers on August 29, 2005.
• Beta 2 was made available at May 1, 2006.
- Includes integration with Windows Desktop
Search, so search results will include results from
both regular NTFS files and WinFS-backed files.
• The third beta was made available at November
2006.
• Final release most likely will be available with
Windows Longhorn Server 2008.
WinFS Resources
• WinFS 101 - an official introductory article
on the concept.
• WinFS Team Blog
• Channel 9 Videos - Interviews with WinFS
developers at Microsoft
• Windows Storage Foundation (WinFS)
Preview
• A Developer's Perspective on WinFS: Part
1
• A Developer's Perspective on WinFS: Part
2
• microsoft.public.windows.developer.winfx.
winfs - WinFS Newsgroup
WinFS Video
http://youtube.com/
watch?v=knM9zTC
GC_A
Questions?
Thank You