Difference between revisions of "Personal Address Manager Service"
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Revision as of 13:28, 18 February 2008
This Standard is being developed according to the VRM Use Case guidelines.
When possible, elements of the Use Model are incorporated directly herein. Otherwise, a link is provided for downloading supporting documents.
|Use Case Description||J. Andrieu||Complete?||XXX|
|High Level Use Cases||TBD||XXX|
|Abstract Use Case Narratives||TBD||XXX|
|Specific Use Case Narratives||TBD||XXX|
|Use Case Diagrams||TBD||XXX|
|Use Case Maps||TBD||XXX|
|Constraints and Requirements||TBD||XXX|
Target date for announcing first complete draft: Internet Identity Workshop 5/12/2008
The Change of Address Service (CoA Service or CoA) allows users to update their postal address once and have it automatically be propagated and/or used by their party "vendors" as authorized by the user.
A note on "vendors": in keeping with the guiding VRM principles, this Service will be defined in terms of how it enables mutually beneficial relationships between buyers and sellers. We will tend to view the focal users as "individuals" and third-party users as "vendors" so that we have a clear perspective as we build the system. However, it is to be understood that "individuals" could easily be business or government agencies, just as "vendors" could be other individuals seeking to use the system to keep in touch with friends.
This particular filter is designed to focus the conversation and accelerate standards development without limiting the ultimate scope of use.
A list of all Users supported by the system, specifying one or two focal users.
- Individuals who use a postal address as a point of contact for vendors.
- Vendors who rely on a postal address as a way to reach individuals with whom they have existing relationships.
Note that this service is specifically NOT designed to support Vendors who rely on postal addresses as a way to reach individuals with whom the want to create a relationship, who we will refer to as "Direct Marketers" for lack of a better term. For this Service, Use Cases which support Direct Marketers are explicitly out of scope.
A visual representation of the supported users and their relationship to one another.
A detailed description of each user's expectations, capability, and requirements for the system. Developed to enough detail to distinguish what this particular user needs from the system design.
- Average Internet user. Understands websites, email, etc., but doesn't necessarily understand any of the underlying technology (HTML, http, SMTP, etc.). Web friendly but not especially tech savvy.
- Updates address on average once/year, although many users will spend years in between usage.
- Authorizations occur more frequently, so that interface is more familiar.
- Has Vendor list for address updates in various formats in various services (DMV, utilities, magazine subscriptions, websites, etc.)
- Internet-savvy Vendor who wants to make sure they always have the latest postal address for contacting users. Capable of implementing fairly sophisticated web services, preferably using compliant third-party software (either OSS and commercial).
- Manages tens to millions of users... small or large business.
- Currently maintains its own customer database.
- Sometimes handles mailings in-house, sometimes through third-party mailing house.
- Non-Internet-savvy vendor, for whom the user wants to send an address update. How do we support this user? I think we should add it to the user list. - Joe Andrieu
High Level Use Cases
A list of all supported use cases in the system, identifying all focal and required use cases by title, ordered by priority.
- AddressChanger Changes Address (base case)
- AddressChanger Manages Address Holder Permissions (and data subsets)
- AddressChanger Accesses Audit Report
- AddressChanger Reviews Address
- AddressUser Gets Current Address (pull)
- AddressUser Subscribes to Address Changes (push)
Prose descriptions of a user's interaction with the system as one example of the Use Case that explains the context, the interaction, and the benefit. Each Use Case requires at least one Scenario.
AddressChanger Changes Address
Bob just got a new job and is moving from Los Angeles to San Francisco and recently selected his new home. He has an address to send to existing vendors. He visits the Change of Address Service and inputs his new address and all of the vendors he wants outgoing notices for (with appropriate account #s and other identifying information). The service confirms the new address, date of the move, and the vendors it will contact. A few vendors require contact information (they aren't in the system) so Bob provides it. The system sends out the notices and keeps track of delivery so Bob can later verify receipt of the update.
New User verses returning user? Address changes initiated by a visit to a vendor rather than the CoA service?
What is the most efficient and appropriate way for users to manage their account information for each vendor? Telling the DMV (department of Motor Vehicles, the service that provides driver's licenses in California) that John Doe is moving is useless if they don't know the driver's license number as well. Seems like this should be jointly specified by the vendor, when possible. That's easier if the vendor initiates the authorization process (catalyzing the creation of the record in the COA service). However, for real-world, off-line vendors, we probably need a simpler upload or manual entry. What about exports/uploads from bill pay services such as are common at banks or financial management services like Mint or Wesabe? - Joe Andrieu
Also, the scenario presumes outward-bound propagation of the address. However, that doesn't match some scenarios we've discussed where the address is instead provided on-demand to the AddressUser. Since we can't assure that every AddressUser is capable of on-demand, shouldn't we assure that both on-demand and outbound notifications work? -Joe Andrieu
Abstract Use Case Narratives
An implementation and technology-free chronological ordering of user intention and system responsibilities for a particular use case. Based on one or more specific Scenarios, define the specific, yet technology-free, interactions that are required for the use case. These narratives will be normative, that is, they will ultimately define the requirements of the functioning system.
AddressChanger Changes Address
|User Intention||System Responsibility|
|1. AddressChanger decides to move.|
|2. AddressChanger expresses new address to system (optionally including scheduling information).|
|3. System assures AddressUsers get the new address when they need it.|
WikiQuestion/suggestion: let's set this up as a template.
Specific Use Case Narratives
Implementation-specific sequences of user action and system response for a use case. These narratives will be illustrative, that is, they will show how a particular set of technologies can implement a particular use care--or how a specific set of technologies might require or suggest changes to the use case.
Use Case Diagrams
Both abstract and specific use cases may be diagramed visually to represent the transaction flow between various system components. For abstract use cases, the diagrams will be normative. For specific use cases, they will be illustrative.
Use Case Maps
A visual representation of the multiple use cases that comprise a particular service and their relationship to one another.
Constraints & Requirements
In addition to responding to specific use cases appropriately, every Service shall define its own set of constraints and requirements to complete the specification of the service. Many requirements will be applicable to most, if not all, VRM services, such as those inspired by tenets of data portability and user-centric identity.
When mapping out the first Change of Address use case, it became clear that the core Use Cases were already substantially met by such online services as Plaxo and LinkedIn, raising the question of what would actually make a Change of Address service VRM-compliant. That led directly to a handful of simple requirements that assure the user and vendors have appropriate access and controls.
- Address stored independently of any particular service provider
- AddressChanger can choose who stores canonical source (self-storage ok)
- Data should be in an open format and portable without data or service loss
- Data transfer and use is always under user control
- AddressUsers can discover the appropriate CoA service for each user