Multivariant product lines

Manufacturers of all business areas are increasingly forced to differentiate their product lines in order to satisfy the customer needs and to successfully compete within their markets. A common example are automotive manufacturers providing the opportunity to configure their cars down to the smallest detail. High customization possibilities usually lead to a wide product variance and therefore high production costs.

Systematic management of variants within product lines is the only profound way to master that complexity. We are convinced that visualizing multivariant product lines with their components and complex constraints in a concise manner plays a vital role in that process.


New to product line management using feature models? Start with our tutorial!

Download Tutorial (PDF)

Best Paper Award

The Committee of the 25th International Conference on Transdisciplinary Engineering in Modena (Italy) honoured our paper Glencoe - A Tool for Specification, Visualization and Formal Analysis of Product Lines with the award for the best paper.

Download Paper (PDF)
Screenshot of the Circle view


Glencoe is under active development via GitHub.
If you miss an important feature or want to participate in the development, please contact us.


  • Tree The traditional visualizationTree view
  • Circle A visualization focussing on cross-tree constraintsCircle view
  • Icicle A compact visualization especially targeting mobile devicesIcicle view
  • Table A conservative visualization focussing on feature propertiesTable view


Configuring a product

An interactive product configurator allows you to deduce all products of the product line by selecting features that the product must contain and deselecting features that the product must not contain. On each decision Glencoe determines and executes all consequences arising from the product line specification.



Authentication providers

Free cloud operation

  • Sign in with your e-mail address or with your existing Google account
  • Automatic synchronization of your feature models and settings
    using a remote storage service hosted at Trier University of Applied Sciences (Germany)
    in accordance with the GDPR/DSGVO at no cost

On-premises operation

  • On-premises operation is available. For individual licensing requests, please contact us.


Analysis results Conjecture list Issue list
  • Consistency
  • Conjectures
  • Common/unique/dead/false optional features
  • Commonalities
  • Atomic feature sets
  • Number of possible configurations
  • Incorrect feature types
  • Invalid, unnecessary or suspicious selection cardinalities
  • Suspicious constraints
  • Glencoe has passed the FaMa Test Suite 1.2

Solver farm


Metrics table

Feature model

  • Number of (variant/common/unique/dead/optional/false optional) features
  • Number of atomic feature sets
  • Maximal/Average number of children per feature
  • Number of (simple/advanced) constraints
  • Maximal/Average number of constraints per feature
  • Number of (rejected) conjectures
  • Number of (possible) configurations
  • (Partial) Variability
  • Homogeneity
  • Height


  • Depth
  • Transitive closure cardinality
  • Impact
  • Commonality

Import & Export

Export formats and options



Pseudonymization of exported feature models


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