MOSS 2007 versus WSS

WSS 3.0 and MOSS 2007 are both powerful collaboration tools made available by Microsoft. Built on the .net platform, many businesses today rely heavily on either one or both products to communicate, collaborate, and share critical business information to contribute information and make decisions based on the most up to date information.   The most basic difference between the two solutions is the upfront investment. In short, WSS is free to most companies whereas MOSS requires a minimum of software purchases and sometimes requires a hardware purchase.

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See:  SharePoint 2007 versus 2010

Windows SharePoint Services 3.0 (WSS) ships bundled with the purchase of Windows Server or Microsoft Small Business Server. This allows organizations to quickly implement WSS and setup an internal company web. The creation of sites and spaces is easy and once the underlying foundation is set up, requires little if no assistance from an organization’s IT team.   Microsoft Office SharePoint Server 2007 (MOSS 2007) takes the collaborative foundation of WSS to another level. With an additional software investment, MOSS 2007 allows organizations to take the foundation laid by WSS v3.0 and expand on it. Additional features sit on top of WSS, use the core WSS framework, and extend it in such a way that is beneficial to larger companies, enterprise deployments, and portal scenarios. Below is a short list of key differentiating features and functions inherent to MOSS 2007.
Comparison screenshots of MOSS vs WSS sites
Comparison screenshots of MOSS vs WSS
Complete Feature List for Comparison
Collaboration Enterprise Search Business Process Forms Management
Enterprise Portal Enterprise Content Management Business Intelligence Platform
Collaboration WSS 3.0 MOSS 2007
  Real-Time Presence and Communication
The enhanced real-time presence smart tag icon, displayed virtually everywhere a person’s name appears in the system, tells users whether a person is online and available for a telephone or audio conference call, instant messaging, or two-way video conversation.
  Social Networking Webpart
Include Social Networking Web Parts that use information about your organization, communities, and electronic communications in Public My Site pages to help establish connections between colleagues with common interests.
  Standard Site Templates
Windows SharePoint Services V3 includes the following standard collaboration site templates:
• Team site
• Document workspace
• Blank site
• Blog
• Wiki
• Meeting workspaces (5 workspace types)
A wiki is a new site template in Windows SharePoint Services V3 that makes it easy to create, edit, link, and restore an individual Web page. Wikis can be used as creative forums to brainstorm ideas, manage knowledge bases, create designs as well as instruction guides or simply gather information in an easy-to-edit format. Wikis are easy to create, modify, and annotate; in addition to tracking contributions and changes. These key features include:
• Fast and easy page creation
• Easy and automatic linking
• Version differences
• WYSIWYG (what you see is what you get) Web page editing
Wikis leverage existing SharePoint functionality including search, navigation, alerts, and custom fields.
Blogs provide a publishing-oriented experience for a single user or a team. Windows SharePoint Services V3 includes a site template that supports:
• FArticle posting
• FReader comments
• FArchive views
• FRSS feed generation
  People and Groups Lists
People and Groups offer a unified place to find, communicate with, and manage people and their permissions, including support for custom fields such as Department, “Office #” and Area of Focus; in addition to the new Person field type. The Person field type creates rich displays of lists of people including support for a People Picker for browsing a list of users. Member Group provides:
• Re-use of groups across sites
• Distribution list for the members of the site
Calendars have been enhanced with richer calendar views, expanded support for recurring events, and all-day events.
  Email Integration
Document libraries, discussion boards, calendars, and announcements can be enabled to receive new postings via e-mail. Similar to the functionality provided by public folders in Microsoft Exchange Server, e-mail enabled discussion boards support:
• A highly scalable, topic-based architecture
• New “super rich-text” field type
• Unified experience for both e-mail and Web-based discussions
• One-step creation of Active Directory distribution lists as part of the site creation process
• Unified SharePoint group and Active Directory management
  Task Coordination
The new Project Tasks list template provides lightweight task management functionality including Gantt charts for visualization of task relationships and status.
Surveys now include conditional branching as well as support for inserting page breaks in long surveys such as annual employee satisfaction or and customer surveys.
  Document Collaboration
Improvements to SharePoint document libraries include:
• Checking out documents locally
• Offline document library support in Outlook 2007
• Major and minor version numbering and tracking
• Support for multiple content types
• Policy, auditing, and workflow
• Tree view support
  Issue Tracking
The Issue Tracking list template has been updated to use the enhanced versioning and version-history storage features of Windows SharePoint Services V3.

Enterprise Portal WSS 3.0 MOSS 2007
  My Site Personal Site
The My Site personal site gives users an opportunity to aggregate information “for me,” “by me,” and “about me.” Significant enhancements include social networking, privacy controls, SharePoint Sites and Documents Roll-Up Web Parts, and Colleagues and Memberships Web Parts.
  Privacy & Security
Use authorizations to control visibility of information in a My Site public view.
  Content Syndication
Use RSS feeds to syndicate content managed in a portal site.
  Site Directory
The Site Directory automatically creates a site map and presents it in an easy-to-use format. The enhanced directory now includes the option to scan for changed or deleted links to external content.
  User Profiles and the Profile Store
User Profiles store personal information for system users. Improvements include multi-valued properties bound to taxonomy from Office SharePoint Server 2007, property-level security controls by person or group, open and closed vocabularies, and per-site property extensions. Profile synchronization and directory import support the extended capabilities of the User Profile Store with enhanced scalability and performance.
  Audience Targeting
Enables use of Web Part pages, Web Parts, and content to target distribution lists and groups in addition to SharePoint audiences.
  Site Manager
Manage a SharePoint site’s navigation, security access, and general look and feel using this easy drag-and-drop tool. Site Manager unifies site management tasks for portals and Web sites, including management of areas, pages, listings, SharePoint site lists, and associated component parts.
  Mobile Device Support
All SharePoint portal, team site, and list pages now render on international and North American mobile devices (including Web-enabled mobile phones) using a simplified text-only format.
  Portal Site Templates
Preconfigured templates streamline creating, customization, and deployment of divisional portals, organization-wide intranet portal sites, and corporate Web sites.
  SharePoint Sites and Documents Roll-up Web Parts
List all the SharePoint sites that a user is part of and documents the user has authored. The Documents Roll-up Web Part also supports more general capabilities for querying and filtering the documents stored in a collection of SharePoint sites.
  Colleagues and Memberships Web Parts
List people the user knows and people who belong to common distribution groups.
  Integration with Access 2007, Excel 2007, PowerPoint 2007, Word 2007
Windows SharePoint Services V3 easily integrates with smart client tools through a set of Web services and documented application interfaces. Users can readily adopt these new tools because of their similarity to other familiar environments, such as the Microsoft Office system. For example, users of Microsoft Office Word, Microsoft Office Excel, Microsoft Office Power Point, Microsoft Office InfoPath, Microsoft Office Project, and Microsoft Office OneNote 2007 can directly interact with information stored in SharePoint sites without having to manually download the content. Users can create workspaces, post and edit documents, and assign tasks, all while working on documents stored in SharePoint sites.
  Integration with Outlook 2007
With Microsoft Office Outlook 2007, users can view calendars and contact lists stored on SharePoint sites, and create and manage sites for editing documents and organizing meetings. Outlook 2007 and Windows SharePoint Services V3 support a new set of significantly enhanced functionality including:
• Read/write access to SharePoint items: calendars, tasks, contacts, discussions, and documents
• Synchronization of offline support of document library and lists
• Ability to check out and edit documents when offline
• Roll-up views of calendars and tasks across multiple lists and sites
• Unified view of personal and SharePoint tasks in Outlook 2007
  Integration with SharePoint Designer
Office SharePoint Designer 2007, based in part on Microsoft Front Page technology, will provide tools for rich customization of sites, and creating reporting tools and application templates, without any coding.

Enterprise Search WSS 3.0 MOSS 2007
  User Interface
Simple, clean yet powerful user interface with industry-standard query syntax. Scopes are decoupled from content sources so users can easily broaden or narrow the scope of a content search. Search can be based on arbitrary content properties such as URL, type, and author. Actionable search results can be easily filtered and sorted; used and shared. Alerts and RSS feeds easily provide updated results for common and frequent queries.
  Search Results
Search results are rendered more clearly. Results are security trimmed so users only see what they can access. Results include user-friendly features such as hit highlighting, duplicate collapsing and synonym suggestion. Optional integration with real time communications tools allow users to easily contact content authors and experts.
  Enterprise Content Sources
Searches over 200 file types in many enterprise content sources, including files shares, web sites, SharePoint sites, Exchange Public Folders, and Lotus Notes databases out of the box with the ability to extend to additional 3rd party repostitories and filetypes through the use of Protocol Handlers and iFilters.
New and improved search algorithms tuned for enterprise content along with the use of relevance and ranking factors such as click distance, hyperlink anchor text, URL depth, and metadata extraction yield the best results for enterprise content.
  Administration and Management
Improved administration user interfaces and admin API provides broad support for various search and indexing scenarios, central controls for resource-intensive operations, as well as tools for management and reporting.
  Indexing Controls
Granualr indexing controls for easy inclusion and exclusion of searched content as well as immediate result removal of any site or item. Continuous index propagation to keep information fresh. Improved crawl rules and crawl log; multiple start addresses per content source; a new browsable, filterable index log provide necessary information to optimize search.
Administrator permissions no longer required by crawler. ACL and ACL-only crawls index content permissions for compliance, privacy, and protection of IP. Security-trimmed search results only allow users to see content they are allowed to access.
  People Search
People search capabilities allow users to find people not only by department or job title but also by expertise, social distance, and common interests.
  Business Data Search
Search data residing in your line of business applications using the Business Data Catalog. Structured content sources as well as LOB application data and reports accessible through web services or ADO.NET can be indexed and retrieved through the Business Data Catalog as search results or into a SharePoint list

Enterprise Content Management WSS 3.0 MOSS 2007
  Business Document Workflow Support
Automate document review, approval, signature collection, and issue tracking using workflow applications.
• Approval
• Collect Feedback
• Collect Signatures
• Disposition Approval
  Document Management Site Templates
• The Managed Document Library site template defines large-scale document management sites.
• The Divisional Library site template includes managed document libraries, dashboards, key performance indicators (KPIs), and other reporting tools.
• The Translation Library site template helps organizations manage multiple translations of a document.
  Integration with Microsoft Information Rights Management (IRM)
Helps ensure that access rights applied to Microsoft Office documents in a central library travel with the documents, even when they are downloaded from the library.
  Document Information Panel
Makes editing document properties an integral part of the Microsoft Office system document-authoring experience.
  Document Action Bar
Describes to users what business policy or workflow governs the current document and what action they are expected to take.
  Retention and Auditing Policies
Define customized information management policies to control retention period, expiration actions, and document-auditing settings.
  Records Repository
Helps ensure the integrity of the files stored in the repository, and supports information management policies that consistently and uniformly enforce auditing, and expiration of records.
  E-Mail Content as Records
Provides consistent, policy-based solutions for managing e-mail content across Microsoft Office Outlook 2007, Microsoft Exchange Server 2007 and Office SharePoint Server 2007.
  Legal Holds
Makes it possible for records to be searched and placed on hold during litigation discovery to override the retention schedule of the records.
  High Fidelity Websites with Consistent Branding
Provides the concept of Master Pages and Page layouts to enforce the branding and navigation of web sites. CSS supports gives pixel level control on the look and feel of these sites.
  Navigation Controls
Out-of-the box navigation controls that can be easily customized by end users.
  Content Authoring
Provides the ability for information workers to create content rich web pages using a web browser.
  Content Publishing and Deployment
Built in approval workflow allows web content to be sent for approval prior to publishing. Content deployment to production sites can be scheduled by setting up jobs and a "live" time period for each page can be specified within which that page is viewable.
  Site Templates
Includes support for several new enterprise site templates:
• The Enterprise Portal template provides a means for a business unit to create and share content that is relevant to the ongoing operation of an enterprise, division, or business unit.
• The Corporate Internet Presence Site template includes tools and workflows to create and manage Web content for products and service descriptions, company news, and public filings, among other things.
• The Application Portal template brings together all of the tools and information related to a particular line-of-business (LOB) application.
• The Roll-up Portal template consolidates data and content from several applications or locations and presents it in an integrated format.
  Page Layouts
Page Layouts simplify content authoring and publishing — site administrators define a structure that guides authors through the publishing process; content contributors focus on doing their jobs rather than on the details of publishing and deployment. Flexible Page Layouts also allow designers to mix and match ASP .NET applications, Web Parts and Authoring Templates in any configuration to create customized sites to meet specific business needs.
  Site Variations
A new feature of Office SharePoint Server, sites can be linked together in a parent-child type of relationship providing a 1-way orchestration framework for web content. This feature allow organizations to deploy multi-lingual publishing sites in a much more structured and manageable environment.
  WYSIWYG Web Content Editor
Extends the SharePoint user interface with additional commands and status indicators for in-context Web page authoring.
  Slide Libraries
The repository features in Windows SharePoint Services V3 provide the platform support for slide libraries, a feature of Office SharePoint Server 2007. Slide libraries enable the storage of individual slides in a SharePoint site. PowerPoint 2007 slide decks can be automatically created from a selection of slides in a slide library.
  Policies, Auditing and Compliance
Repositories in Windows SharePoint Services V3 support the following policy, auditing, and compliance features. However, the features denoted with an asterisk are activated only upon the installation of Microsoft Office SharePoint Server 2007.
• Document retention and expiration policies*
• Highly customizable policies
• Workflow process to define expiration
• Access control and security
• Information Rights Management policies applied on download to secure the functional access to documents
• Tracking and auditing
• Logging of all actions on sites, content, and workflows
• Official document-of-record repositories*
• Site for storing or archiving enterprise approved content types

Business Process Forms WSS 3.0 MOSS 2007
  Browser-based Forms
InfoPath Forms Services available in Microsoft Office SharePoint Server 2007 and Microsoft Office Forms Server 2007 makes it possible to design Web-capable forms in Microsoft Office InfoPath 2007 and distribute them on corporate intranets, extranets, or the Internet. Users can fill out forms in a browser or HTML enabled Mobile device with no download or client components needed.
  Centralized Forms Management and Control
InfoPath Forms Services provide a administrator controled centralized form solution catalog that makes it easy for users to find a form and minimize form solution downtime when upgrades are necessary. It also provides administrators with the tools to manage form solution security and accessibility.
  “Design Once” Development Model
Forms designers can design their forms once and deploy them for use both within the rich Office InfoPath 2007 client program and through a Web browser. Office Forms Server 2007 automatically converts the form into ASP.NET Web forms, with no additional work from the designer.
  Form Import Wizard
The designer in Office InfoPath 2007 provides an easy way to convert forms designed in Microsoft Office Excel and Microsoft Office Word into rich Office InfoPath 2007 forms. The Form Import Wizard handles the conversion of form fields, repeating tables, rich text boxes, and other elements, dynamically generating the underlying XML structure for the new form.
  Integrated Deployment Model for “No-code” Forms
The Publish Wizard in Office InfoPath 2007 makes it easy to publish forms that do not have any managed code components to a Windows SharePoint Services library, while making the form available as a browser-based form at the same time.
  Compatibility Checker
The Compatibility Checker helps forms designers validate those features that need to work across the broadest range of Web browsers.

Business Intelligence WSS 3.0 MOSS 2007
  Integrated, Flexible Spreadsheet Publishing
Microsoft Office Excel 2007 provides an integrated publishing experience that lets information workers easily choose what they want to share with others and determine how others can interact with published spreadsheets.
  Share, Manage, and Control Spreadsheets
Share business data broadly while maintaining control and helping to protect sensitive information. Provides access to spreadsheet data and analysis through server-calculated, interactive Microsoft Office Excel spreadsheets from a Web browser. Use these spreadsheets to maintain and efficiently share one centralized version of the truth while helping to protect any sensitive or proprietary information embedded in documents, such as financial models, by limiting access to portions of the spreadsheet and auditing their usage.
  Web-based Business Intelligence Using Excel Services
Excel Services empowers spreadsheet authors to easily and broadly share spreadsheets that use the new Business Intelligence functionality through the browser. Fully interactive, data-bound spreadsheets including charts, tables, and PivotTable views can be created as part of a portal, dashboard, or business scorecard, without requiring any development.
  Data Connection Libraries
Data Connection Libraries are centralized SharePoint document libraries that store Office Data Connections (ODC); ODCs describe connections to external data. Centralizing Office Data Connections makes it easier to share, manage, and discover data connections that can be used by any Microsoft Office program.
  Business Data Catalog
The Business Data Catalog (BDC) tightly integrates external data into the Office SharePoint Server 2007 user experience, providing access to external data residing within backed LOB applications, and enabling the display of and interaction with external data through a set of Business Data Web Parts.
  Business Data Web Parts
Use SharePoint Business Data Web Parts for viewing lists, entities, and related information retrieved through the Business Data Catalog.
  Business Data Actions
With no custom coding, easily create actions that open Web pages, display the user interfaces of LOB applications, launch InfoPath forms, and perform other common tasks. Use the convenient links that appear beside business objects returned from the Business Data Catalog.
  Integrated Business Intelligence Dashboards
Create rich, interactive business intelligence dashboards that assemble and display business information from disparate sources by using built-in Web parts such as dynamic KPIs, Excel spreadsheets, Microsoft SQL Server Reporting Services reports, or a collection of business data connectivity Web Parts that can visualize information residing in backed LOB applications.
  Report Center
An out-of-the-box site optimized for report access and management, including a report library, data connection library, and a dashboard template. These sites, hosted by the new Report Center, provide consistent management of reports, spreadsheets, and data connections.
  Key Performance Indicators
KPIs communicate goals and status to drive results. Using the KPI Web Part, a user can create a KPI list within a Web Part page, without writing code. The KPI Web Part can display KPIs from Microsoft SQL Server Analysis Services, Excel spreadsheets, SharePoint lists, or manually entered data.
  Filter Web Parts
Filters enable dashboards to be personalized by communicating shared parameters among Web Parts on a dashboard. The parameters passed can be automatically applied based on user profiles, SharePoint lists, the BDC, manually entered information, and so forth.

Management WSS 3.0 MOSS 2007
  Configuration Management
Built on the infrastructure and services provided by ASP .NET version 2.0, Windows SharePoint Services V3 supports a centralized Web configuration management object model.
  Administration User Interface
The administration Web pages have been reorganized and redesigned based on feedback from the many customers who deployed Windows SharePoint Services V2 SP2 in their organizations.
In Windows SharePoint Services V3, delegation gives SharePoint site owners a secure, scalable, and centrally managed set of administration rights .
Re-parenting is the ability to dynamically re-arrange a hierarchy of SharePoint sites. Previously, in Windows SharePoint Services V2 SP2, a site needed to be backed up and deleted from its current location and then restored under a new parent site in the SharePoint site hierarchy.
Provisioning is a core component of Windows SharePoint Services V3 that:
• Lets users choose their own template
• Defines a shared Web application
SharePoint sites can be provisioned in two ways:
• Site templates (*.STP files) that are typically user-created
• Site definitions that are developer-created and stored on Web server file system
  Usage Analytics
Usage Analytics

Platform WSS 3.0 MOSS 2007
  Alert Filtering
Filters are supported to highlight the more relevant alerts.
  Richer Alert Information
More information about the item that has changed is included in the alert.
  Alert Customization
Additional platform features are provided for custom formatting, events, and alerts.
  Task Notifications
Task notifications are now sent automatically when a user is assigned a task. There is no need for the user to subscribe to the notification in advance.
  Notification Service
Extensible platform sends customizable e-mail alerts to users. Users participating in a workflow automatically receive e-mail alerts without subscribing in advance. Improved filtering conditions now trigger more relevant alerts to all users.
  RSS Feeds
By integrating RSS feeds for each SharePoint list, Microsoft Windows SharePoint Services V3 provides an efficient mechanism for end users to retrieve the information using RSS-enabled programs such as Internet Explorer 7 and Outlook 2007.
  Consistent User Experience
Windows SharePoint Services V3 implements many new and enhanced features that make the Windows SharePoint Services user interface more uniform – providing a consistent user experience. These features are described below.
  Rights Trimmed User Interface
Users are only allowed to see the features that they have the rights to use. Previously, Windows SharePoint Services Version 2 Service Pack 2 (V2 SP2) did not inform a user they were not allowed to perform a function until they clicked its link.
  Automatic Breadcrumb Bar
Provides immediate navigational context for the user – creating a greater sense of “place” within a SharePoint site.
  Quick Launch Bar
Available on all view pages and is more easily customizable.
  Top Navigation Bar
Available on all view pages and is more easily customizable.
  View Improvements
Ability to page forward and backward in addition to improved user interface for sorting and filtering.
  Descriptive Menu Actions
The Actions drop-down menu provides task-based descriptions of the actions that can be performed on a particular SharePoint list or document library.
  Simplified Web Part User Interface
Simplified user interface for browsing, selecting and adding Web Parts to a Web Part page. The Web Part catalog is presented as a scrollable list; no more paging forward and backward through the Web Part catalog.
Windows SharePoint Services V3 is Section 508 and W3C compliant.
  Recycle Bin
Enables a user to easily restore an item that was deleted accidentally. Administration tools are also available to manage the lifecycle of deleted items in the recycle bin.
  Backup/Restore Support for VSS (Volume Shadow Copy Service)
Windows SharePoint Services backup and restore functionality is enhanced with the support for VSS (Volume Shadow Copy Service), a feature of Windows Server 2003.
  Document Libraries
Improvement to SharePoint document libraries include:
• Checking out documents locally
• Offline document library support in Outlook 2007
• Major and minor version numbering and tracking
• Support for multiple content type
• Policy, auditing, and workflow
• Tree view support
  Large - List and Cross-List Indexing
The performance of large lists and cross-lists can be improved through the use of indexes on specific list column properties. This significantly increases the capacity and performance of a Windows SharePoint Services V3 list compared to version 2.0.
Users can extend document libraries and lists with custom column properties. The practical number of column properties that a list or document library may have has been significantly increased due to performance and scalability improvements in WSS V3 Lists.
  Content Types
Content types are reusable definitions of document types across your organization. A single document library can store content with multiple document types. A content type is used to define a group of documents that share a common set of attributes; including:
• Document templates
• What’s on the “New” button
• Metadata specific to the content type
• Shared column property templates
• Custom InfoPath forms in 2007 Office system applications
• Enterprise defined policies
• Common workflows
Content types are different from traditional file types (which map to physical file formats like Word documents or Excel spreadsheets). Content types are used to define and implement business documents such as functional specifications, budget planning spreadsheets or new product concept presentation.
  Application Templates
While standard workspaces in Windows SharePoint Services are easy to implement, organizations seeking a more customized deployment can get started quickly with application templates for addressing specific business processes or sets of tasks. A new set of Application Templates will be available for Windows SharePoint Services V3. They will highlight aspects of task coordination and will offer some pre-configured workflows. The application templates provide customers with a baseline for deploying Windows SharePoint Services in context of business processes and set of tasks. A rich ecosystem of solution providers use the application templates as the basis for deeper horizontal and vertical solutions.
Windows SharePoint Services V3 hosts Windows Workflow Foundation (WF) to enable customized creation of workflow solutions and use of structured workflows on document library and list items. Office SharePoint Designer 2007 can be used to design and configure custom workflow solutions with the support for Windows Workflow Foundation in Windows SharePoint Services V3. Ready-to-use workflow templates are available with Office SharePoint Server 2007 as well as a new set of application solutions for Windows SharePoint Services downloadable from the Microsoft Tech Net Web site.
  Tree View
Tree view controls are now supported for navigating document libraries in a manner similar to the file system.
  Append-only and Multi-Value Lookup Fields
Append-only fields enable a user to append text to a field without being able to modify the existing content of the field. This is useful for logging and tracking applications. Multi-valued lookup fields enable multiple values to be selected from another list field.
  Extensible Site and List Templates
In Windows SharePoint Services V3, site and list templates can be edited in Office SharePoint Designer 2007.
  Subsite Promotion
An existing subsite can be promoted (repositioned) within the logical hierarchy of SharePoint sites (SharePoint site collection) to which it belongs.
  Support for ASP .NET 2.0
Windows SharePoint Services V3 leverages the reliability, scalability, and functionality of ASP.NET version 2.0. This includes support for the ASP.NET version 2.0 Web Part Model (with added backward compatibility support for Windows SharePoint Services V2 SP2 Web Parts). Building on ASP.NET not only provides a deep technical foundation for WSS, but also allows WSS to leverage the Visual Studio development environment for application development.
  ASP.NET Master Pages
Each Web page in a SharePoint site references an ASP .NET version 2.0 master page. Master pages provide centralized control of the layout and style of all the pages in a SharePoint site. Each site has a master page gallery that the site owner can use to customize the look of all of the pages on the site.
  Performance Caching
Performance Caching.
  Object Model
All object model changes in Microsoft Windows SharePoint Services V3 are highly backward- compatible with Microsoft Windows SharePoint Services V2 SP2. However, you should be aware that your old code, although it will compile, may not behave as expected in the new object-model hierarchy. The Administration object model Microsoft.SharePoint.Administration has been completely re-factored to allow for greater extensibility. There is now a hierarchical object store.
  Field Types
Extensible field types allow you to use enterprise data structures within Microsoft Windows SharePoint Services V3 by creating your own controls, which are exposed as simple fields within a list or document library by Microsoft Windows SharePoint Services V3.
  Site Columns
Site columns provide a central, reusable model for column definition. When you create a site column, each list that uses this column has the same definition, and you do not have to do the tedious work of reproducing the column in each list.
  Content Type Settings
Content types are a core concept used throughout Microsoft Windows SharePoint Services V3. Content types are designed to help users organize their SharePoint content in a more meaningful way. A content type is a reusable collection of settings you want to apply to a certain category of content. Content types enable you to centrally manage and reuse the metadata and behaviors of a document or item type.
  Folders in Lists
Folders, a popular feature in Windows SharePoint Services V2 SP2 document libraries, are now also available in lists. Folders allow further segregation of content within a single list, adding another level of versatility.
  Folder Metadata
Users and developers can now assign metadata to a folder. This creates a rich content holder that contains child content, while appearing as more than a container. Essentially, this allows the folder to function as a separate, but fully functional, item type.
  List Indexing
By allowing a column to be indexed, and stored as a simple name/value pair in a separate database, access to specific items in large lists is significantly improved. These kinds of performance improvements allow SharePoint lists to become true data stores, capable of supporting external applications as well as simple team sites.
  Cross-List Queries
Cross-list queries allow you to use the SPQuery object to query all the lists within a Web or site collection. Previously, you had to enumerate through the parent objects to obtain a collection of SPLists, query the list to return the items, and then build your own collection of list items from the multiple lists.
  List Items
Several new enhancements related to list items have been introduced in Windows SharePoint Services V3:
• Per-item and per-folder security
• Versioning
• Required checkout
  Property Bags
Property Bags are now supported on several major objects: SPWeb, SPFile, SPFolder, and SPListItem.
  Web Services
Microsoft Windows SharePoint Services V3 expands several existing Web services, increasing the number of methods provided through the Lists, SiteData, UserGroup, WebPartPagesWebService, and Webs services. More information is available in the section A Developer’s Perspective near the end of this evaluation guide and the Windows SharePoint Services V3 SDK.
  Change Logs
The change log is a repository storage feature in Microsoft Windows SharePoint Services V3 that provides item change tracking services that are useful, for example, for data synchronization between Windows SharePoint Services and external applications. Office Outlook 2007 is an example of an external application that uses the change log to synchronize documents and list items for offline access.
  Event Receivers
Events fall into two major categories:
• List events. Core events, including changes, additions, and removals of list items and list columns (schema changes)
• Simple site events. Deletion of sites and site collections
Events are either synchronous “before” events, denoted by the “XYZing” name format, or asynchronous “after” events, denoted by the “ABCed” name format.
  Job Service
The Job service in Microsoft Windows SharePoint Services V3 provides facilities for setting up a timed job that executes:
• after a definable time interval
• during a certain time period in the hour, day, week, month, or year
The Job service also provides a facility for distributing work amongst servers in a farm; for example, based on a request to create a site (which originates on a Web front end), a one-time job may run as soon as is reasonable on an indexing server.
  Feature Framework
Microsoft Windows SharePoint Services V3 contains a new structure called a “feature.” A “feature” is an end-user-oriented container of one or more elements. An “element” is an atomic Windows SharePoint Services concept. The “feature” is defined in an XML format, similar to other existing SharePoint structures. Each “feature” definition is a set of XML files. Many items that were previously contained within a site definition in Windows SharePoint Services V2 SP2 are now able to fit as an element. In Windows SharePoint Services V3, a SharePoint site definition is transformed into a list of “features” plus a layout page and a master page. This enables any templated site to be transformed using any other site template.
  Solution Deployment Model
WSS 3.0 also introduces a new deployment mechanism called a "solution." A solution is similar to Web Part packages from WSS v2 in that it is an aggregated CAB file containing XML instructions and files that need to be deployed on each front-end Web server. But solutions go beyond web part packages to supoprt the deployment of features, site definitions, and related assemblies used for event handlers and workflows. Solutions also assist in pushing deployment files to each web server in a farm. An administrator adds a solution to a Windows SharePoint Services farm, which then copies the solution CAB file into the configuration database. When the administrator runs the command to deploy the solution, WSS starts a timer job to push the solution CAB file to each front end web server to install it.
  Extensibility and Programmability of Search
Includes three categories of application programming interfaces (APIs) for comprehensive access to Microsoft Search features:
• Data access: protocol handlers and IFilters
• Query object model, APIs, Web services, and reusable Search Center Web Parts
• Administration object model and APIs
  Excel Spreadsheet Developer Reuse and Extensibility
Spreadsheets published to SharePoint sites are accessible more securely using Web services. This means that application developers can take advantage of the logic embedded in a spreadsheet by remotely accessing spreadsheets from any platform. Business analysts can modify or update the model without affecting the business application or having to involve an application developer in the process.
  Version History
Changes to the item are shown in the version history. In addition, support is provided for “append-only” comment fields.
  Major and Minor Version Tracking
Tracking of both major version numbers and minor version numbers are supported in Windows SharePoint Services V3.
  Folder- and Item-Level Access Controls
Windows SharePoint Services V3 extends group or role-based access controls from sites, document libraries, and lists to individual folders, documents, and list items.
  Virtual Server Security Policies
An authentication zone is identified with a SharePoint (IIS) virtual server. The same content (document libraries and lists) can be made available to multiple zones (e.g. intranet and extranet). Access control lists (ACLs) can have a mixture of users from different authentication providers.
  Pluggable Authentication
Each authentication zone can have a pluggable, custom authentication provider in addition to the default support for Windows Basic, Digest, NTLM, Forms, and Kerberos authentication methods.
  LDAP Pluggable Authentication Provider
LDAP Pluggable Authentication Provider.
  Single Sign-On (SSO)
Permits a person to enter one name and password to use a variety of back-end applications. SSO is used for integrating back-office systems and LOB applications that require separate credentials databases. Take advantage of single sign on to authenticate users and levearge this to pre-populate InfoPath forms.
  Common Search Technology and Infrastructure
Provides a single indexing and search infrastructure ability that scales from the desktop, through team sites and divisional portal sites, to the largest corporate intranets, extranets, and Internet sites.
  Inteoperand Integration
• XML Support
• SOAP Support
• Web Services
• Open API and Object Model
In short, MOSS adds additional user and administrative functionality that give it the value proposition for all SharePoint implementations. However, should a small company or workgroup wish to create a collaborative environment with the core SharePoint functionality, WSS provides a powerful low cost alternative that must be considered. Should you have specific requirements that you would like to discuss when comparing MOSS vs WSS, please contact us. We’d be happy to assist.
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