Chapter 1: Requirements

The software to be developed is a web application that allows users to:

  1. Edit feature models, and

  2. Configure products according to these feature models.

Each user could have their own models, independent of which have other users. Will be possible for a user to share their models. A user could edit and / or configure their own feature models or the ones he has access.

Additionally, it is expected that the application enable managers to:

  1. Manage users of the application, including options for authenticate users and allow sharing models, and

  2. Control of Versions of different models and configurations.

Ahead on detail, the modules of the system are presented.

1.1 Edition of feature models

Each user will be able to:

  1. See a list of feature models own or to which have access. Models must be associated with a user owner. The owner could share models so that other users can edit, configure them or do both.

  2. Edit feature models.

    • Add, or Delete feature models.
    • Add, Remove, Edit attributes of feature models.
    • Moving parts of tree to another.
    • Add, Remove, Edit constrains.

  3. Validate feature models. Determine if the model does not has errors, e.g., that the model is a valid one, that does not have dead characteristics, or does not have contradictory constraints.

3.2. Configuration of Products

Each user also to be able to:

  1. See a list of models that can be configured, either that they are of the user or he has access to these models.

  2. Start the configuration of a product from a model.

    • Select or de-select a characteristics. The system should propagate decisions and select or deselect the characteristics according to appropriate restrictions.
    • Prefer or not prefer one characteristic.
    • Undoing a decision (selection, de-selection, preference or not preference)
    • Auto-complete a configuration.
  3. Resume configuration process of a product. Restarting the process at the point where it was the last time.

3.3. User Management

Each user will be able to:

  1. Log In in the application.

  2. Change his personal details.

  3. Change Password.

Additionally, a admin user will be able to:

  1. Create or Edit users.

  2. Change password of a user.

3.4. Version control

Each user will be able to:

  1. View the version history of a Model.

  2. See the version history of a Configuration.