Help!! Object design for a CMS

yipchunyu posted on Wednesday, August 23, 2006

I am in the very beginning stage of a CMS. However, I get confused in the object model design and hope to receive some advice.
Some requirements:
1. The document a user posted to the system can be display in different function area(s)/web site(s)
2. Each document may related to certain product lines/product(s). Users should be able to group the posts by product
3. Each document may contains a list or attachment(s)
4. Different type of users (as in different web site) may allow to acces certain type of info.

I drafted the following list (my first time and so may contains lots errors)
How can I simplify the model? any other advice is welcomed. Thx

List of Objects and Their Responsibilities

Potential Class	Responsibility	Collaborators
DocumentList	Gets a read-only list of projects	DocumentInfo
DocumentInfo	Provides a read-only information for a document	Document
Document	Adds and edits a valid document
Assignment	Manages association of a document, function area and an attachment	RoleList
ProductList	Get a read-only list of product	ProductInfo
ProductInfo	Provides a read-only information for a product	Product
Product	Adds and edits a valid product	ProductAssignments, CommonRules
ProductAssignments	Maintains a list of products to which a document is assigned	ProductAssignment
ProductAssignment	Manages a document to which a product is assigned	Assignment, CommonRules, Document
FunctionAreasList	Get a read-only list of function area	FunctionArea
FunctionAreaInfo	Provides a read-only information for a function area	Function
Function	Adds and edits a valid function	FunctionAreaAssignments, CommonRules
FunctionAreaAssignements	Maintains a list of function areas to which a document is assigned	FunctionAreaAssignement
FunctionAreaAssignement	Manages a document to which a function area is assigned	Assignment, CommonRules, Document
AttachmentList	Gets a read-only list of attachments	AttachmentInfo
AttachmentInfo	Provides a read-only information for an attachment	Attachment
Attachment	Adds and edits a valid attachment	AttachmentAssignments, CommonRules
AttachmentAssignments	Maintains a list of attachments to which a document is assigned	AttachmentAssignment
AttachmentAssignment	Manages a document to which an attachment is assigned	Assignment, CommonRules, Document
RoleList	Gets a read-only list of roles	None
Roles	Maintains a list of roles in the system	Role, RoleList
Role	Adds and edits a valid role	None

Help!! Object design for a CMS

yipchunyu posted on Wednesday, August 23, 2006

yipchunyu replied on Monday, August 28, 2006